https://produccioncientificaluz.org/index.php/boletin/issue/feed Boletín del Centro de Investigaciones Biológicas 2021-12-16T21:29:44+00:00 Teresa Martinez Leones boletincibluz@gmail.com Open Journal Systems <p>Dedicada a la publicación de trabajos originales (básicos o aplicados) en el campo de las Ciencias Biológicas. Abierta no solamente a las investigaciones efectuadas en Venezuela sino también a aquellos estudios ejecutados en otros países, relacionados con la biología tropical</p> https://produccioncientificaluz.org/index.php/boletin/article/view/37371 Tabla de Contenido 2021-12-16T14:00:41+00:00 Teresa Martínez Leones boletincibluz@gmail.com 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37372 Dinámica reproductiva del cangrejo callinectes Danae (Decapoda: Portunidae) de la isla de Margarita, Venezuela. 2021-12-16T17:08:53+00:00 Idar Quijada neslava20@yahoo.es Leo Walter González *neslava20@yahoo.es Nora Eslava neslava20@yahoo.es Francisco Guevara neslava20@yahoo.es <p><span id="page30R_mcid18" class="markedContent"><span dir="ltr" style="left: 73.2px; top: 467.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.968945);" role="presentation">Las jaibas del género</span> <span dir="ltr" style="left: 252.283px; top: 467.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.914855);" role="presentation">Callinectes</span> <span dir="ltr" style="left: 344.083px; top: 467.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.964231);" role="presentation">gozan de una amplia aceptación comercial en</span> <span dir="ltr" style="left: 72.6px; top: 488.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.909466);" role="presentation">Venezuela por su textura y sabor de su carne; sin embargo, no se tiene conocimiento</span> <span dir="ltr" style="left: 72.6px; top: 509.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.940494);" role="presentation">acerca de la reproducción de</span> <span dir="ltr" style="left: 304.083px; top: 509.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.925116);" role="presentation">Callinectes danae</span><span dir="ltr" style="left: 439.317px; top: 509.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.976683);" role="presentation">, por lo que se planteó estudiar la </span><span dir="ltr" style="left: 72.6px; top: 530.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.918945);" role="presentation">proporción de sexos, talla media de madurez sexual y fecundidad con la finalidad de</span> <span dir="ltr" style="left: 72.6px; top: 552.125px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.924528);" role="presentation">aportar información básica de la dinámica reproductiva. En tal sentido, se realizaron </span><span dir="ltr" style="left: 72.6px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.866923);" role="presentation">muestreos</span> <span dir="ltr" style="left: 158.712px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.857517);" role="presentation">mensuales</span> <span dir="ltr" style="left: 246.646px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">en</span> <span dir="ltr" style="left: 275.423px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.948469);" role="presentation">La</span> <span dir="ltr" style="left: 306.409px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902761);" role="presentation">Isleta,</span> <span dir="ltr" style="left: 362.345px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.925336);" role="presentation">isla</span> <span dir="ltr" style="left: 399.494px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 428.272px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936722);" role="presentation">Margarita</span> <span dir="ltr" style="left: 512.697px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899845);" role="presentation">proveniente</span> <span dir="ltr" style="left: 610.843px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 639.62px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.93306);" role="presentation">la</span> <span dir="ltr" style="left: 664.589px; top: 573.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.825938);" role="presentation">pesca</span> <span dir="ltr" style="left: 72.6px; top: 594.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.967774);" role="presentation">comercial, desde enero hasta diciembre de 2014. A cada individuo se registró el</span> <span dir="ltr" style="left: 72.6px; top: 615.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.963374);" role="presentation">ancho del caparazón (LC), peso total (PT), sexo, madurez sexual, talla media de</span> <span dir="ltr" style="left: 72.6px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.881709);" role="presentation">madurez</span> <span dir="ltr" style="left: 146.973px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.884998);" role="presentation">sexual </span><span dir="ltr" style="left: 205.522px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.954383);" role="presentation">(LC50),</span> <span dir="ltr" style="left: 275.683px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.905354);" role="presentation">fecundidad</span> <span dir="ltr" style="left: 368.604px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920678);" role="presentation">parcial</span> <span dir="ltr" style="left: 430.117px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.94897);" role="presentation">(F)</span> <span dir="ltr" style="left: 463.863px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.922075);" role="presentation">por</span> <span dir="ltr" style="left: 499.834px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927926);" role="presentation">el</span> <span dir="ltr" style="left: 524.601px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.895669);" role="presentation">método</span> <span dir="ltr" style="left: 590.97px; top: 636.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936318);" role="presentation">gravimétrico</span> <span dir="ltr" style="left: 696.194px; top: 636.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span> <span dir="ltr" style="left: 72.6px; top: 657.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916416);" role="presentation">relaciones de la fecundidad con el ancho del caparazón y peso total del ejemplar. Se</span> <span dir="ltr" style="left: 72.6px; top: 678.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.91589);" role="presentation">examinó un total de 3.624 ejemplares constituidos por 56% hembras y 44% machos,</span> <span dir="ltr" style="left: 72.6px; top: 699.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.944907);" role="presentation">la proporción sexual anual mostró diferencia significativa entre hembras y machos</span> <span dir="ltr" style="left: 72.6px; top: 720.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.910431);" role="presentation">(χ</span><span dir="ltr" style="left: 87.04px; top: 717.517px; font-size: 11.6px; font-family: sans-serif;" role="presentation">2</span> <span dir="ltr" style="left: 97.64px; top: 720.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.914602);" role="presentation">= 50,55;</span> <span dir="ltr" style="left: 163.84px; top: 720.758px; font-size: 18.4px; font-family: sans-serif;" role="presentation">p</span> <span dir="ltr" style="left: 177.64px; top: 720.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.887976);" role="presentation">&lt; 0,05). Durante todo el año se observó hembras maduras y ovígeras en</span> <span dir="ltr" style="left: 72.6px; top: 741.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930115);" role="presentation">diferentes estados de desarrollo embrionario, igualmente machos maduros. La talla</span> <span dir="ltr" style="left: 72.6px; top: 762.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.931339);" role="presentation">media de madurez sexual LC50 en hembras fue 7,6 cm y en machos de 8,8 cm. La</span> <span dir="ltr" style="left: 72.6px; top: 783.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.908978);" role="presentation">fecundidad parcial varió de 25.704 a 660.366 huevos en hembras de 6,4 cm y 8,7 cm</span> <span dir="ltr" style="left: 72.6px; top: 805.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.933574);" role="presentation">LC, respectivamente. Las relaciones fecundidad-ancho de caparazón (F = 458,12 *</span><span dir="ltr" style="left: 72.6px; top: 826.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.998138);" role="presentation">LC</span><span dir="ltr" style="left: 96.04px; top: 822.967px; font-size: 11.6px; font-family: sans-serif; transform: scaleX(0.849701);" role="presentation">2,85</span><span dir="ltr" style="left: 116.44px; top: 826.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.03904);" role="presentation">; r = 0,53) y fecundidad-peso total (</span></span><span id="page30R_mcid19" class="markedContent"><span dir="ltr" style="left: 413.717px; top: 826.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.1085);" role="presentation">F = 9.904 + 6.690 * PT; r = 0,68</span></span><span id="page30R_mcid20" class="markedContent"><span dir="ltr" style="left: 699.2px; top: 826.208px; font-size: 18.4px; font-family: sans-serif;" role="presentation">)</span></span><span id="page30R_mcid21" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 847.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.878752);" role="presentation">presentaron valores moderados de</span></span><span id="page30R_mcid22" class="markedContent"></span><span id="page30R_mcid23" class="markedContent"> <span dir="ltr" style="left: 328.483px; top: 847.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.891248);" role="presentation">los coeficientes de correlación, deduciéndose que a</span></span><span id="page30R_mcid24" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 868.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.900045);" role="presentation">mayor longitud y peso ocurre un mayor número de huevos</span></span><span id="page30R_mcid25" class="markedContent"><span dir="ltr" style="left: 501.917px; top: 868.408px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37373 La harina de lombriz de tierra (Eisenia Fetida) como alternativa proteica en el engorde de pre-juveniles del camarón Penaeus Vannamei. 2021-12-16T17:02:30+00:00 Ángela Zambrano veronicazame@hotmail.com Rodolfo Patricio Panta-Vélez veronicazame@hotmail.com Juan Vélez veronicazame@hotmail.com Víctor Dávila veronicazame@hotmail.com Vanessa Acosta veronicazame@hotmail.com Fernando Isea-León veronicazame@hotmail.com <p><span id="page30R_mcid28" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 695.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.962516);" role="presentation">La harina de pescado constituye el principal aporte proteico en la formulación de</span> <span dir="ltr" style="left: 72.6px; top: 716.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.915439);" role="presentation">dietas para camarones; sin embargo, su costo se ha encarecido en los últimos años,</span> <span dir="ltr" style="left: 72.6px; top: 737.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930647);" role="presentation">originando la necesidad de investigar materias primas para su formulación. En este </span><span dir="ltr" style="left: 72.6px; top: 758.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.973593);" role="presentation">estudio se analiza el efecto de la harina de lombriz de tierra</span> <span dir="ltr" style="left: 554.167px; top: 758.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.948095);" role="presentation">Eisenia fetida</span> <span dir="ltr" style="left: 667px; top: 758.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.960118);" role="presentation">en el</span> <span dir="ltr" style="left: 72.6px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.875953);" role="presentation">engorde</span> <span dir="ltr" style="left: 147.764px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.838784);" role="presentation">de</span> <span dir="ltr" style="left: 180.939px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.918103);" role="presentation">pre-juveniles</span> <span dir="ltr" style="left: 292.573px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 326.083px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.852699);" role="presentation">Penaeus</span> <span dir="ltr" style="left: 404.044px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.891362);" role="presentation">vannamei</span><span dir="ltr" style="left: 475.317px; top: 780.158px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 495.704px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.817778);" role="presentation">Se</span> <span dir="ltr" style="left: 530.094px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.86547);" role="presentation">ensayaron</span> <span dir="ltr" style="left: 620.254px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.858732);" role="presentation">tres</span> <span dir="ltr" style="left: 662.629px; top: 780.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.86641);" role="presentation">dietas</span> <span dir="ltr" style="left: 72.6px; top: 801.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.958202);" role="presentation">experimentales: T1 = 100% harina de pescado (HP); T2 = 50% harina de lombriz</span> <span dir="ltr" style="left: 72.6px; top: 822.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.04555);" role="presentation">(HLO) y 50% HP; T3 = 100 % HLO. Los camarones (0,81± 0,01 g de peso</span> <span dir="ltr" style="left: 72.6px; top: 843.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.932055);" role="presentation">promedio) fueron alimentados durante los 15 días. Los individuos fueron colocados</span> <span dir="ltr" style="left: 72.6px; top: 864.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.964195);" role="presentation">en tanques de 1 ton de capacidad con 200 L de agua salada, a una densidad de</span> <span dir="ltr" style="left: 72.6px; top: 885.601px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.903483);" role="presentation">siembra de 24 ind/m</span><span dir="ltr" style="left: 223.083px; top: 882.367px; font-size: 11.6px; font-family: sans-serif;" role="presentation">2</span><span dir="ltr" style="left: 228.883px; top: 885.601px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.90011);" role="presentation">, 30 pre-juveniles/ tanque, bajo condiciones controladas (30UPS, </span><span dir="ltr" style="left: 72.6px; top: 906.601px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.957434);" role="presentation">25±0,5 °C, pH 7,8 y oxígeno disuelto 5,54 mg/L). El mayor crecimiento corporal y</span> <span dir="ltr" style="left: 72.6px; top: 927.801px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.923949);" role="presentation">ganancia de peso fue obtenido en los tratamientos T3 (6,81 ±0,042 cm; 2,02 ±0,034</span> <span dir="ltr" style="left: 72.6px; top: 948.801px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.925851);" role="presentation">g) y T2 (6,69 ±0,049 cm; 1,90 ±0,035 g). No se observaron diferencias significativas</span> <span dir="ltr" style="left: 72.6px; top: 969.801px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927099);" role="presentation">en relación al factor de conversión del alimento (p&gt; 0,05) (T1: 0,77 ±0,018; T2: 0,75</span> <span dir="ltr" style="left: 72.6px; top: 991.001px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927466);" role="presentation">±0,02; T3: 0,76 ±0,01). La supervivencia de los camarones fue del 100% en las tres </span></span><span id="page38R_mcid5" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 126.675px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.91892);" role="presentation">dietas. Los resultados sugieren que la harina de</span> <span dir="ltr" style="left: 437.317px; top: 126.675px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920863);" role="presentation">E. fetida</span> <span dir="ltr" style="left: 508.517px; top: 126.675px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.862278);" role="presentation">puede ser usada como una </span></span><span id="page38R_mcid6" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 150.875px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.972331);" role="presentation">alternativa nutricional (de bajo costo) durante la etapa pre-juvenil de camarones</span></span><span id="page38R_mcid7" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 175.275px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920514);" role="presentation">pudiendo sustituir parcial y/o totalmente (50% y 100%) a la harina de pescado como </span><span dir="ltr" style="left: 72.6px; top: 199.475px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89111);" role="presentation">alimento balanceado.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37374 Riqueza y composición de la avifauna del manglar Capitán Chico, Maracaibo, Venezuela. 2021-12-16T18:06:56+00:00 Sonsirée Ramírez sonsireeramirez@gmail.com Enrique Narváez enriquejnarvaezbravo@gmail.com Anderson Saras andersonsaras39@gmail.com <p><span id="page30R_mcid22" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 536.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.979363);" role="presentation">En las costas del Sistema de Maracaibo se desarrollan manglares en riesgo de</span> <span dir="ltr" style="left: 72.6px; top: 557.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.907564);" role="presentation">desaparecer y cuya avifauna es desconocida. Se reporta la riqueza y composición de </span><span dir="ltr" style="left: 72.6px; top: 578.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89314);" role="presentation">especies de aves asociadas al manglar Capitán Chico, ubicado en el perímetro urbano </span><span dir="ltr" style="left: 72.6px; top: 600.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.907335);" role="presentation">de la ciudad de Maracaibo. El estudio fue realizado entre agosto de 2013 y agosto de</span> <span dir="ltr" style="left: 72.6px; top: 621.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.99669);" role="presentation">2104, a través de observaciones directas y capturas con redes de neblina. Se</span> <span dir="ltr" style="left: 72.6px; top: 642.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.912689);" role="presentation">identificaron 39 especies de aves, de las cuales seis fueron migratorias, las especies </span><span dir="ltr" style="left: 72.6px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.843612);" role="presentation">más</span> <span dir="ltr" style="left: 116.374px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.859901);" role="presentation">abundantes</span> <span dir="ltr" style="left: 213.526px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.918978);" role="presentation">fueron</span> <span dir="ltr" style="left: 275.683px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.915235);" role="presentation">Catharus</span> <span dir="ltr" style="left: 358.447px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.897891);" role="presentation">ustulatus</span><span dir="ltr" style="left: 424.717px; top: 663.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 443.717px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936371);" role="presentation">Conirostrum</span> <span dir="ltr" style="left: 551.89px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.986909);" role="presentation">bicolor,</span> <span dir="ltr" style="left: 623.853px; top: 663.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.925335);" role="presentation">Columbina</span> <span dir="ltr" style="left: 72.6px; top: 684.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.926758);" role="presentation">squammata, Eupsittula pertinax</span> <span dir="ltr" style="left: 318.283px; top: 684.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span> <span dir="ltr" style="left: 333.883px; top: 684.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.948079);" role="presentation">Melanerpes rubricapillus</span><span dir="ltr" style="left: 523.167px; top: 684.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.912606);" role="presentation">. La riqueza de especies</span> <span dir="ltr" style="left: 72.6px; top: 705.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.909999);" role="presentation">fue mayor comparada con otros manglares de la misma región (Península Ana María </span><span dir="ltr" style="left: 72.6px; top: 726.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.949755);" role="presentation">Campos y Ciénaga Los Olivitos), pero menor respecto a manglares del oriente de</span> <span dir="ltr" style="left: 72.6px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902085);" role="presentation">Venezuela</span> <span dir="ltr" style="left: 162.337px; top: 747.558px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span> <span dir="ltr" style="left: 183.515px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927926);" role="presentation">el</span> <span dir="ltr" style="left: 209.073px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899632);" role="presentation">Caribe</span> <span dir="ltr" style="left: 269.848px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920588);" role="presentation">colombiano.</span> <span dir="ltr" style="left: 373.403px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.887543);" role="presentation">Las</span> <span dir="ltr" style="left: 411.97px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902182);" role="presentation">diferencias</span> <span dir="ltr" style="left: 504.485px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.862764);" role="presentation">pueden</span> <span dir="ltr" style="left: 569.437px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.834116);" role="presentation">ser</span> <span dir="ltr" style="left: 602.998px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.826248);" role="presentation">causadas</span> <span dir="ltr" style="left: 680.131px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.922075);" role="presentation">por</span> <span dir="ltr" style="left: 72.6px; top: 768.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.938905);" role="presentation">características climáticas y de vegetación de cada localidad o por la cercanía a las </span><span dir="ltr" style="left: 72.6px; top: 789.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.8924);" role="presentation">zonas urbanas. La comunidad de aves de Capitán Chico es representativa del ecotono </span><span dir="ltr" style="left: 72.6px; top: 811.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.94504);" role="presentation">entre el área urbana inmediata y el interior del bosque de manglar y, pudiera estar</span> <span dir="ltr" style="left: 72.6px; top: 832.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.907388);" role="presentation">influenciada por la avifauna de áreas naturales cercanas. Los manglares ubicados en </span><span dir="ltr" style="left: 72.6px; top: 853.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.900003);" role="presentation">áreas urbanas, como los de Capitán Chico, sirven como zonas de protección y refugio </span><span dir="ltr" style="left: 72.6px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.862219);" role="presentation">para</span> <span dir="ltr" style="left: 116.981px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.864581);" role="presentation">las</span> <span dir="ltr" style="left: 149.954px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.836993);" role="presentation">aves</span> <span dir="ltr" style="left: 195.328px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.888734);" role="presentation">silvestres.</span> <span dir="ltr" style="left: 280.649px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.948469);" role="presentation">La</span> <span dir="ltr" style="left: 312.83px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.866456);" role="presentation">presencia</span> <span dir="ltr" style="left: 394.582px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 424.574px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.865361);" role="presentation">las</span> <span dir="ltr" style="left: 457.546px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.831787);" role="presentation">aves</span> <span dir="ltr" style="left: 502.718px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916234);" role="presentation">migratorias,</span> <span dir="ltr" style="left: 603.624px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.86424);" role="presentation">demuestra</span> <span dir="ltr" style="left: 691.374px; top: 874.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.93306);" role="presentation">la</span> <span dir="ltr" style="left: 72.6px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.906167);" role="presentation">importancia que tiene este ecosistema para la conservación de este tipo de especies. </span><span dir="ltr" style="left: 72.6px; top: 916.401px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.882598);" role="presentation">Se sugiere que Capitán Chico se declare como área protegida.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37375 ¿Qué sabemos de las especies exóticas el tejedor africano (Ploceus cucullatus), la monjita (Lonchura malacca) y la alondra (Lonchura oryzivora) en Venezuela? 2021-12-16T18:39:55+00:00 Cristina Sainz-Borgo cristinasainzb@usb.ve <p><span id="page30R_mcid23" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 562.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.962724);" role="presentation">En Venezuela existen hasta el momento doce especies de aves exóticas. Con el</span> <span dir="ltr" style="left: 72.6px; top: 583.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.931811);" role="presentation">objetivo de determinar la expansión y el estado de las poblaciones de tres de estas</span> <span dir="ltr" style="left: 72.6px; top: 604.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.915706);" role="presentation">especies para el país, el Tejedor Africano (</span><span dir="ltr" style="left: 391.517px; top: 604.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.909959);" role="presentation">Ploceus cucullatus</span><span dir="ltr" style="left: 530.167px; top: 604.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.975991);" role="presentation">), la Monjita (</span><span dir="ltr" style="left: 634.167px; top: 604.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927753);" role="presentation">Lonchura </span><span dir="ltr" style="left: 72.6px; top: 625.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.910108);" role="presentation">malacca</span><span dir="ltr" style="left: 134.84px; top: 625.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.06156);" role="presentation">) y la Alondra (</span><span dir="ltr" style="left: 262.083px; top: 625.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.956943);" role="presentation">Lonchura oryzivora</span><span dir="ltr" style="left: 411.717px; top: 625.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">)</span><span dir="ltr" style="left: 417.917px; top: 625.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span> <span dir="ltr" style="left: 430.517px; top: 625.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.961455);" role="presentation">se utilizaron datos de la plataforma</span> <span dir="ltr" style="left: 72.6px; top: 646.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.95137);" role="presentation">eBird. Para</span> <span dir="ltr" style="left: 169.633px; top: 646.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.98759);" role="presentation">P. cucullatus</span> <span dir="ltr" style="left: 279.683px; top: 646.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.955802);" role="presentation">se registraron 6.658 avistamientos, en 632 localidades</span> <span dir="ltr" style="left: 72.6px; top: 667.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936416);" role="presentation">pertenecientes a 12 estados del país (Aragua, Carabobo, Cojedes, Distrito Capital, </span><span dir="ltr" style="left: 72.6px; top: 688.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.951821);" role="presentation">Falcón, Guárico, Lara, Nueva Esparta, Sucre, La Guaira, Yaracuy y Zulia), siendo</span> <span dir="ltr" style="left: 72.6px; top: 709.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.946485);" role="presentation">Aragua el que presentó mayor abundancia. Para</span> <span dir="ltr" style="left: 457.517px; top: 709.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.961116);" role="presentation">L. malacca</span> <span dir="ltr" style="left: 551.967px; top: 709.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936506);" role="presentation">se registraron 1.149</span> <span dir="ltr" style="left: 72.6px; top: 730.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920844);" role="presentation">avistamientos en 58 localidades entre el 2005 y el 2020, con reportes en 10 estados </span><span dir="ltr" style="left: 72.6px; top: 751.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.923949);" role="presentation">(Yaracuy, Zulia, Guárico, Carabobo, Lara, Portuguesa, Miranda, Aragua, Monagas y</span> <span dir="ltr" style="left: 72.6px; top: 772.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.941436);" role="presentation">La Guaira). Para</span> <span dir="ltr" style="left: 208.633px; top: 772.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.974777);" role="presentation">L. oryzivora</span> <span dir="ltr" style="left: 309.283px; top: 772.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.934418);" role="presentation">se registraron 42 avistamientos en ocho localidades</span> <span dir="ltr" style="left: 72.6px; top: 794.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.91833);" role="presentation">ubicadas en los estados Aragua, Miranda, Carabobo y Portuguesa; el primer reporte </span><span dir="ltr" style="left: 72.6px; top: 815.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.918953);" role="presentation">para esta especie en eBird es en 1992 en Portuguesa. Los datos analizados revelan</span> <span dir="ltr" style="left: 72.6px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.865459);" role="presentation">que</span> <span dir="ltr" style="left: 111.387px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.864574);" role="presentation">las</span> <span dir="ltr" style="left: 143.753px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.891519);" role="presentation">poblaciones</span> <span dir="ltr" style="left: 243.518px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 272.7px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.812416);" role="presentation">estas</span> <span dir="ltr" style="left: 320.448px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.864729);" role="presentation">tres</span> <span dir="ltr" style="left: 359.199px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.839212);" role="presentation">especies</span> <span dir="ltr" style="left: 432.357px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.860068);" role="presentation">han</span> <span dir="ltr" style="left: 470.739px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89632);" role="presentation">experimentado</span> <span dir="ltr" style="left: 591.866px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.865459);" role="presentation">una</span> <span dir="ltr" style="left: 630.451px; top: 836.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.886622);" role="presentation">expansión</span> <span dir="ltr" style="left: 72.6px; top: 857.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.910019);" role="presentation">geográfica en Venezuela, siendo</span> <span dir="ltr" style="left: 321.883px; top: 857.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.960269);" role="presentation">L. oryzivora</span> <span dir="ltr" style="left: 419.317px; top: 857.208px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.928206);" role="presentation">la que tuvo una expansión menor. Sin </span><span dir="ltr" style="left: 72.6px; top: 878.408px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.911396);" role="presentation">embargo, para determinar el estado de estas poblaciones y su posible impacto sobre </span><span dir="ltr" style="left: 72.6px; top: 899.401px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.911289);" role="presentation">otras especies, es necesario realizar monitoreos a largo plazo, de forma que se sepa </span><span dir="ltr" style="left: 72.6px; top: 920.601px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.889174);" role="presentation">sobre su dispersión y movilidad a lo largo de las zonas donde se han establecido.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37376 Florística y estructura de los bosques ribereños del humedal laguna ojo de agua, la urbana, municipio cedeño, estado Bolívar,Venezuela. 2021-12-16T19:20:36+00:00 Wilmer A. Díaz-Pérez wildip@gmail.com Nathalit Mojica wildip@gmail.com Judith Rosales wildip@gmail.com <p><span id="page30R_mcid18" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 557.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.935682);" role="presentation">Se determinó la composición florística y estructura de los bosques ribereños en los</span> <span dir="ltr" style="left: 72.6px; top: 578.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.973251);" role="presentation">alrededores del humedal laguna Ojo de Agua en La Urbana, municipio Cedeño,</span> <span dir="ltr" style="left: 72.6px; top: 599.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.992137);" role="presentation">estado Bolívar, en la margen derecha del rio Orinoco, Venezuela.</span></span><span id="page30R_mcid19" class="markedContent"> <span dir="ltr" style="left: 610.367px; top: 599.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.976558);" role="presentation">Para ello se</span></span><span id="page30R_mcid20" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 620.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902885);" role="presentation">seleccionaron cuatro sitios de acuerdo con su posición en el gradiente de</span></span><span id="page30R_mcid21" class="markedContent"> <span dir="ltr" style="left: 618.767px; top: 620.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.91886);" role="presentation">inundación: </span></span><span id="page30R_mcid22" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 642.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.910044);" role="presentation">dos en dique y dos en cubeta. En cada</span> <span dir="ltr" style="left: 374.158px; top: 642.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.923513);" role="presentation">sitio se estableció una parcela de 50 x 20 m</span></span><span id="page30R_mcid23" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.928221);" role="presentation">(1000 m</span></span><span id="page30R_mcid24" class="markedContent"><span dir="ltr" style="left: 135.04px; top: 659.917px; font-size: 11.6px; font-family: sans-serif;" role="presentation">2</span></span><span id="page30R_mcid25" class="markedContent"><span dir="ltr" style="left: 140.84px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.960003);" role="presentation">).</span></span><span id="page30R_mcid26" class="markedContent"></span><span id="page30R_mcid27" class="markedContent"> <span dir="ltr" style="left: 162.84px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.906319);" role="presentation">Se calcul</span></span><span id="page30R_mcid28" class="markedContent"><span dir="ltr" style="left: 230.483px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.905898);" role="presentation">aron los valores de</span></span><span id="page30R_mcid29" class="markedContent"></span><span id="page30R_mcid30" class="markedContent"> <span dir="ltr" style="left: 376.917px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.874576);" role="presentation">densidad,</span></span><span id="page30R_mcid31" class="markedContent"></span><span id="page30R_mcid32" class="markedContent"> <span dir="ltr" style="left: 452.317px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.908855);" role="presentation">dominancia</span></span><span id="page30R_mcid33" class="markedContent"></span><span id="page30R_mcid34" class="markedContent"> <span dir="ltr" style="left: 543.567px; top: 663.158px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span></span><span id="page30R_mcid35" class="markedContent"></span><span id="page30R_mcid36" class="markedContent"> <span dir="ltr" style="left: 558.167px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.924098);" role="presentation">frec</span></span><span id="page30R_mcid37" class="markedContent"><span dir="ltr" style="left: 586.567px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.870657);" role="presentation">uenc</span></span><span id="page30R_mcid38" class="markedContent"><span dir="ltr" style="left: 621.167px; top: 663.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.903362);" role="presentation">ia e índices</span></span><span id="page30R_mcid39" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 684.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.98943);" role="presentation">de importancia para familias (IVF) y especies (IVI) por parcela</span></span><span id="page30R_mcid40" class="markedContent"><span dir="ltr" style="left: 573.167px; top: 684.158px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span></span><span id="page30R_mcid41" class="markedContent"></span><span id="page30R_mcid42" class="markedContent"></span><span id="page30R_mcid43" class="markedContent"> <span dir="ltr" style="left: 594.967px; top: 684.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.959839);" role="presentation">Los resul</span></span><span id="page30R_mcid44" class="markedContent"><span dir="ltr" style="left: 666.8px; top: 684.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.856714);" role="presentation">tados</span></span><span id="page30R_mcid45" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899901);" role="presentation">mostraron</span></span><span id="page30R_mcid46" class="markedContent"><span dir="ltr" style="left: 147.24px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.987496);" role="presentation">, para un</span></span><span id="page30R_mcid47" class="markedContent"> <span dir="ltr" style="left: 227.883px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.934726);" role="presentation">total</span></span><span id="page30R_mcid48" class="markedContent"> <span dir="ltr" style="left: 269.083px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span></span><span id="page30R_mcid49" class="markedContent"> <span dir="ltr" style="left: 295.283px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">0</span></span><span id="page30R_mcid50" class="markedContent"><span dir="ltr" style="left: 304.483px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span></span><span id="page30R_mcid51" class="markedContent"><span dir="ltr" style="left: 309.083px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">4</span></span><span id="page30R_mcid52" class="markedContent"></span><span id="page30R_mcid53" class="markedContent"> <span dir="ltr" style="left: 326.883px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.858747);" role="presentation">ha,</span></span><span id="page30R_mcid54" class="markedContent"> <span dir="ltr" style="left: 357.483px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.963351);" role="presentation">11</span></span><span id="page30R_mcid55" class="markedContent"></span><span id="page30R_mcid56" class="markedContent"> <span dir="ltr" style="left: 384.517px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.986935);" role="presentation">familias, 1</span></span><span id="page30R_mcid57" class="markedContent"><span dir="ltr" style="left: 466.117px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">7</span></span><span id="page30R_mcid58" class="markedContent"></span><span id="page30R_mcid59" class="markedContent"> <span dir="ltr" style="left: 484.117px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.963943);" role="presentation">géneros y 1</span></span><span id="page30R_mcid60" class="markedContent"><span dir="ltr" style="left: 576.967px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">8</span></span><span id="page30R_mcid61" class="markedContent"></span><span id="page30R_mcid62" class="markedContent"> <span dir="ltr" style="left: 594.967px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.841494);" role="presentation">especies</span></span><span id="page30R_mcid63" class="markedContent"><span dir="ltr" style="left: 655.967px; top: 705.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span></span><span id="page30R_mcid64" class="markedContent"></span><span id="page30R_mcid65" class="markedContent"> <span dir="ltr" style="left: 678px; top: 705.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.922275);" role="presentation">Los</span></span><span id="page30R_mcid66" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 726.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899031);" role="presentation">bosques son bajos (15 m) y cobertura media (50</span></span><span id="page30R_mcid67" class="markedContent"><span dir="ltr" style="left: 428.917px; top: 726.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">-</span></span><span id="page30R_mcid68" class="markedContent"><span dir="ltr" style="left: 434.717px; top: 726.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.926823);" role="presentation">75%),</span></span><span id="page30R_mcid69" class="markedContent"> <span dir="ltr" style="left: 484.117px; top: 726.358px; font-size: 18.4px; font-family: sans-serif;" role="presentation">s</span></span><span id="page30R_mcid70" class="markedContent"><span dir="ltr" style="left: 491.317px; top: 726.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.906573);" role="presentation">iempreverdes. Tanto</span></span><span id="page30R_mcid71" class="markedContent"> <span dir="ltr" style="left: 647.567px; top: 726.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.881963);" role="presentation">para los</span></span><span id="page30R_mcid72" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.881782);" role="presentation">bosques en cubeta como en dique l</span></span><span id="page30R_mcid73" class="markedContent"><span dir="ltr" style="left: 329.083px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.86591);" role="presentation">a densidad</span></span><span id="page30R_mcid74" class="markedContent"> <span dir="ltr" style="left: 411.717px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.922907);" role="presentation">para individuos con DAP</span></span><span id="page30R_mcid75" class="markedContent"> <span dir="ltr" style="left: 602.367px; top: 747.558px; font-size: 18.4px; font-family: sans-serif;" role="presentation">&gt;</span></span><span id="page30R_mcid76" class="markedContent"></span><span id="page30R_mcid77" class="markedContent"> <span dir="ltr" style="left: 617.367px; top: 747.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.924869);" role="presentation">10 cm varió</span></span><span id="page30R_mcid78" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 768.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.875918);" role="presentation">entre</span></span><span id="page30R_mcid79" class="markedContent"></span><span id="page30R_mcid80" class="markedContent"> <span dir="ltr" style="left: 114.44px; top: 768.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.887578);" role="presentation">128 y 151, el número de especies y géneros de 13 a</span></span><span id="page30R_mcid81" class="markedContent"></span><span id="page30R_mcid82" class="markedContent"> <span dir="ltr" style="left: 500.317px; top: 768.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.926718);" role="presentation">10, familias de 9 a 7 y área </span></span><span id="page30R_mcid83" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 789.608px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.94578);" role="presentation">basal entre 5,09 y 7,93</span></span><span id="page30R_mcid84" class="markedContent"> <span dir="ltr" style="left: 257.283px; top: 789.608px; font-size: 18.4px; font-family: sans-serif;" role="presentation">m</span></span><span id="page30R_mcid85" class="markedContent"><span dir="ltr" style="left: 271.283px; top: 786.317px; font-size: 11.6px; font-family: sans-serif;" role="presentation">2</span></span><span id="page30R_mcid86" class="markedContent"><span dir="ltr" style="left: 277.283px; top: 789.608px; font-size: 18.4px; font-family: sans-serif;" role="presentation">/</span></span><span id="page30R_mcid87" class="markedContent"><span dir="ltr" style="left: 282.483px; top: 789.608px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">0,4</span></span><span id="page30R_mcid88" class="markedContent"> <span dir="ltr" style="left: 312.883px; top: 789.608px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.838906);" role="presentation">ha</span></span><span id="page30R_mcid89" class="markedContent"><span dir="ltr" style="left: 330.083px; top: 789.608px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span></span><span id="page30R_mcid90" class="markedContent"></span><span id="page30R_mcid91" class="markedContent"> <span dir="ltr" style="left: 349.483px; top: 789.608px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916385);" role="presentation">En general, Caesalpiniaceae presentó la mayor </span></span><span id="page30R_mcid92" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.912473);" role="presentation">densidad (1</span></span><span id="page30R_mcid93" class="markedContent"><span dir="ltr" style="left: 160.44px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">62</span></span><span id="page30R_mcid94" class="markedContent"></span><span id="page30R_mcid95" class="markedContent"> <span dir="ltr" style="left: 185.833px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.955074);" role="presentation">individuos) y mayor área basal (</span></span><span id="page30R_mcid96" class="markedContent"><span dir="ltr" style="left: 435.317px; top: 810.808px; font-size: 18.4px; font-family: sans-serif;" role="presentation">8</span></span><span id="page30R_mcid97" class="markedContent"><span dir="ltr" style="left: 444.517px; top: 810.808px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span></span><span id="page30R_mcid98" class="markedContent"><span dir="ltr" style="left: 449.117px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.889251);" role="presentation">85</span></span><span id="page30R_mcid99" class="markedContent"></span><span id="page30R_mcid100" class="markedContent"> <span dir="ltr" style="left: 474.317px; top: 810.808px; font-size: 18.4px; font-family: sans-serif;" role="presentation">m</span></span><span id="page30R_mcid101" class="markedContent"><span dir="ltr" style="left: 488.317px; top: 807.567px; font-size: 11.6px; font-family: sans-serif;" role="presentation">2</span></span><span id="page30R_mcid102" class="markedContent"><span dir="ltr" style="left: 494.117px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.941071);" role="presentation">/0,4 ha).</span></span><span id="page30R_mcid103" class="markedContent"></span><span id="page30R_mcid104" class="markedContent"> <span dir="ltr" style="left: 564.967px; top: 810.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.938788);" role="presentation">De acuerdo con el</span></span><span id="page30R_mcid105" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 831.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.07425);" role="presentation">IVF, C</span></span><span id="page30R_mcid106" class="markedContent"><span dir="ltr" style="left: 126.44px; top: 831.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.905933);" role="presentation">aesalpiniaceae, Euphorbiaceae, Polygalaceae, Fabaceae y Myrtaceae son las</span></span><span id="page30R_mcid107" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 853.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.968073);" role="presentation">más importantes en ambos sitios.</span></span><span id="page30R_mcid108" class="markedContent"></span><span id="page30R_mcid109" class="markedContent"> <span dir="ltr" style="left: 348.483px; top: 853.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.0618);" role="presentation">Con respecto al IVI l</span></span><span id="page30R_mcid110" class="markedContent"><span dir="ltr" style="left: 524.767px; top: 853.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.958521);" role="presentation">as especies con mayor</span></span><span id="page30R_mcid111" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 874.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.92216);" role="presentation">importancia</span></span><span id="page30R_mcid112" class="markedContent"> <span dir="ltr" style="left: 170.033px; top: 874.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.981939);" role="presentation">en el bosque en cubeta son</span></span><span id="page30R_mcid113" class="markedContent"> <span dir="ltr" style="left: 402.117px; top: 874.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.976782);" role="presentation">Tachigali davidsei</span></span><span id="page30R_mcid114" class="markedContent"><span dir="ltr" style="left: 543.167px; top: 874.008px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span></span><span id="page30R_mcid115" class="markedContent"> <span dir="ltr" style="left: 557.567px; top: 874.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.00095);" role="presentation">Piranhea trifoliata</span></span><span id="page30R_mcid116" class="markedContent"><span dir="ltr" style="left: 700.8px; top: 874.008px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span></span><span id="page30R_mcid117" class="markedContent"> <span dir="ltr" style="left: 72.6px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.968655);" role="presentation">Ruprechtia tenuiflora</span></span><span id="page30R_mcid118" class="markedContent"></span><span id="page30R_mcid119" class="markedContent"> <span dir="ltr" style="left: 247.883px; top: 895.201px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span></span><span id="page30R_mcid120" class="markedContent"> <span dir="ltr" style="left: 267.683px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.938558);" role="presentation">Et</span></span><span id="page30R_mcid121" class="markedContent"><span dir="ltr" style="left: 284.083px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.977373);" role="presentation">aballia</span></span><span id="page30R_mcid122" class="markedContent"></span><span id="page30R_mcid123" class="markedContent"> <span dir="ltr" style="left: 346.683px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.928242);" role="presentation">dubia</span></span><span id="page30R_mcid124" class="markedContent"><span dir="ltr" style="left: 388.517px; top: 895.201px; font-size: 18.4px; font-family: sans-serif;" role="presentation">,</span></span><span id="page30R_mcid125" class="markedContent"></span><span id="page30R_mcid126" class="markedContent"> <span dir="ltr" style="left: 403.717px; top: 895.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.991904);" role="presentation">mientras que en el dique predominan </span></span><span id="page30R_mcid127" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 916.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.943479);" role="presentation">Tachigali davidsei</span></span><span id="page30R_mcid128" class="markedContent"></span><span id="page30R_mcid129" class="markedContent"> <span dir="ltr" style="left: 213.433px; top: 916.201px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span></span><span id="page30R_mcid130" class="markedContent"></span><span id="page30R_mcid131" class="markedContent"> <span dir="ltr" style="left: 227.083px; top: 916.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.933654);" role="presentation">Ruprechtia tenuiflora</span></span><span id="page30R_mcid132" class="markedContent"><span dir="ltr" style="left: 385.717px; top: 916.201px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37377 Nuevas especies de paracymus thomson, 1867 (coleoptera: hydrophilidae: laccobiini). Parte II: nuevos registros de Venezuela. 2021-12-16T19:54:11+00:00 Mauricio García liocanthydrus@yahoo.com <p><span id="page30R_mcid11" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 468.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.919612);" role="presentation">Se describen seis nuevas especies del género</span> <span dir="ltr" style="left: 430.117px; top: 468.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.895476);" role="presentation">Paracymus</span> <span dir="ltr" style="left: 520.567px; top: 468.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930802);" role="presentation">Thomson en Venezuela,</span> <span dir="ltr" style="left: 72.6px; top: 489.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.990213);" role="presentation">depositadas en el Museo de Artrópodos de La Universidad del Zulia (MALUZ), </span><span dir="ltr" style="left: 72.6px; top: 510.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.900705);" role="presentation">Maracaibo, estado Zulia. Las seis especies son procedentes de diferentes localidades </span><span dir="ltr" style="left: 72.6px; top: 531.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.00749);" role="presentation">o regiones de Venezuela como, la región occidental (Lara), los llanos (Apure,</span> <span dir="ltr" style="left: 72.6px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.943044);" role="presentation">Guárico), sur de Venezuela (Amazonas):</span> <span dir="ltr" style="left: 394.517px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.947252);" role="presentation">Paracymus lara</span> <span dir="ltr" style="left: 523.767px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 541.167px; top: 552.725px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 553.767px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 582.367px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">.,</span> <span dir="ltr" style="left: 599.567px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.953002);" role="presentation">P. melvae</span> <span dir="ltr" style="left: 683.2px; top: 552.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 700.6px; top: 552.725px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 72.6px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 101.24px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">., </span><span dir="ltr" style="left: 115.64px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.997655);" role="presentation">P. petiti</span> <span dir="ltr" style="left: 179.833px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 197.233px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 207.033px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 235.683px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">.,</span> <span dir="ltr" style="left: 250.083px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">P</span><span dir="ltr" style="left: 261.283px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 271.083px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.957591);" role="presentation">piaroa</span> <span dir="ltr" style="left: 325.283px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 342.683px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 352.483px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 381.114px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">.,</span> <span dir="ltr" style="left: 395.517px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920876);" role="presentation">P. tomuso</span> <span dir="ltr" style="left: 474.917px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 492.317px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 502.117px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 530.767px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899023);" role="presentation">.,</span> <span dir="ltr" style="left: 545.167px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">P</span><span dir="ltr" style="left: 556.367px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 566.167px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.961149);" role="presentation">yaruro</span> <span dir="ltr" style="left: 621.567px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.89693);" role="presentation">sp</span><span dir="ltr" style="left: 638.967px; top: 573.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">.</span> <span dir="ltr" style="left: 648.767px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96507);" role="presentation">nov</span><span dir="ltr" style="left: 677.2px; top: 573.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.861166);" role="presentation">. Se</span> <span dir="ltr" style="left: 72.6px; top: 594.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.929357);" role="presentation">ilustran</span> <span dir="ltr" style="left: 133.24px; top: 594.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.90925);" role="presentation">habitus</span> <span dir="ltr" style="left: 192.433px; top: 594.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.905059);" role="presentation">y caracteres diagnósticos como el esclerito antenal, palpos y mentón;</span> <span dir="ltr" style="left: 72.6px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.891866);" role="presentation">escleritos</span> <span dir="ltr" style="left: 154.131px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.887634);" role="presentation">ventrales</span> <span dir="ltr" style="left: 232.643px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902418);" role="presentation">como</span> <span dir="ltr" style="left: 285.433px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927926);" role="presentation">el</span> <span dir="ltr" style="left: 310.99px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.935722);" role="presentation">proventrito,</span> <span dir="ltr" style="left: 409.32px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.873251);" role="presentation">proceso</span> <span dir="ltr" style="left: 478.67px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.894179);" role="presentation">mesoventral</span> <span dir="ltr" style="left: 580.569px; top: 615.958px; font-size: 18.4px; font-family: sans-serif;" role="presentation">y</span> <span dir="ltr" style="left: 601.747px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916214);" role="presentation">los</span> <span dir="ltr" style="left: 635.511px; top: 615.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.889498);" role="presentation">escleritos </span><span dir="ltr" style="left: 72.6px; top: 637.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.879382);" role="presentation">genitales. Se incluye mapa con todas las especies de Venezuela.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37378 Efecto tóxico del Ni(II) sobre la actividad de la ureasa en un lodo anaeróbico granular 2021-12-16T20:19:53+00:00 Julio Marín jmarin@fing.luz.edu.ve Karelis Fernández jmarin@fing.luz.edu.ve Laugeny Díaz jmarin@fing.luz.edu.ve Nancy Angulo jmarin@fing.luz.edu.ve <p><span id="page30R_mcid35" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 522.525px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.890473);" role="presentation">La entrada de sustancias tóxicas como metales, metaloides y otros, en los sistemas de</span> <span dir="ltr" style="left: 72.6px; top: 543.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.9841);" role="presentation">tratamiento biológico de aguas residuales ocasiona la inhibición de la actividad</span> <span dir="ltr" style="left: 72.6px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916164);" role="presentation">microbiana,</span> <span dir="ltr" style="left: 173.156px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.898577);" role="presentation">conduciendo</span> <span dir="ltr" style="left: 280.134px; top: 564.758px; font-size: 18.4px; font-family: sans-serif;" role="presentation">a</span> <span dir="ltr" style="left: 301.717px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.93306);" role="presentation">la</span> <span dir="ltr" style="left: 328.489px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.934902);" role="presentation">disminución</span> <span dir="ltr" style="left: 432.691px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 463.475px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920219);" role="presentation">la</span> <span dir="ltr" style="left: 490.062px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930076);" role="presentation">eficiencia</span> <span dir="ltr" style="left: 574.813px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 605.394px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.913882);" role="presentation">remoción</span> <span dir="ltr" style="left: 687.936px; top: 564.758px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.838784);" role="presentation">de</span> <span dir="ltr" style="left: 72.6px; top: 585.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.955207);" role="presentation">contaminantes. Ante esta situación, se pueden implementar ciertas técnicas para</span> <span dir="ltr" style="left: 72.6px; top: 606.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.961315);" role="presentation">comprobar la estabilidad fisiológica microbiana, como la medición de la actividad</span> <span dir="ltr" style="left: 72.6px; top: 627.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.906738);" role="presentation">enzimática, la cual es altamente sensible, confiable y representativa ante los cambios</span> <span dir="ltr" style="left: 72.6px; top: 649.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.939054);" role="presentation">ocurridos en los biorreactores. En este trabajo se evaluó el efecto tóxico del níquel</span> <span dir="ltr" style="left: 72.6px; top: 670.158px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.899103);" role="presentation">(Ni) sobre la actividad de la ureasa en un lodo anaeróbico granular, mediante ensayos</span> <span dir="ltr" style="left: 72.6px; top: 691.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936954);" role="presentation">de laboratorio a condiciones mesofílicas. Se utilizaron 5 reactores alimentados con</span> <span dir="ltr" style="left: 72.6px; top: 712.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.902048);" role="presentation">agua residual sintética que contenía concentraciones de 0 (control); 0,5 (R1); 10 (R2);</span> <span dir="ltr" style="left: 72.6px; top: 733.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.94332);" role="presentation">50 (R3) y 100 (R4) mgNi(II)/L, aplicando un tiempo de retención hidráulico de 24 h</span> <span dir="ltr" style="left: 72.6px; top: 754.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.914694);" role="presentation">durante 30 d. Cada 3 d se cuantificaron los niveles de pH, alcalinidad total, demanda</span> <span dir="ltr" style="left: 72.6px; top: 775.558px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.959577);" role="presentation">química de oxígeno, volumen de biogás y metano, inhibición de la producción de</span> <span dir="ltr" style="left: 72.6px; top: 796.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.907259);" role="presentation">metano (IPM) y actividad de la ureasa. El incremento de las concentraciones de Ni(II)</span> <span dir="ltr" style="left: 72.6px; top: 817.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.932151);" role="presentation">condujo a la disminución significativa (</span><span dir="ltr" style="left: 364.683px; top: 817.808px; font-size: 18.4px; font-family: sans-serif;" role="presentation">p</span><span dir="ltr" style="left: 373.917px; top: 817.808px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.886054);" role="presentation">&lt;0,001) de actividad de la ureasa, desde 1,21</span> <span dir="ltr" style="left: 72.6px; top: 839.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930614);" role="presentation">(control) hasta 0,27 (R4) mg/dL, acompañado del aumento de la IPM hasta 13,3 %.</span> <span dir="ltr" style="left: 72.6px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.817778);" role="presentation">Se</span> <span dir="ltr" style="left: 104.579px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.918187);" role="presentation">evidenció</span> <span dir="ltr" style="left: 189.33px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.916365);" role="presentation">el</span> <span dir="ltr" style="left: 216.102px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.892962);" role="presentation">efecto</span> <span dir="ltr" style="left: 274.043px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.956238);" role="presentation">tóxico</span> <span dir="ltr" style="left: 333.622px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.838792);" role="presentation">de</span> <span dir="ltr" style="left: 364.406px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.06107);" role="presentation">Ni(II)</span> <span dir="ltr" style="left: 420.342px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.867771);" role="presentation">sobre</span> <span dir="ltr" style="left: 473.499px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927926);" role="presentation">el</span> <span dir="ltr" style="left: 500.253px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.849898);" role="presentation">estado</span> <span dir="ltr" style="left: 560.623px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.972122);" role="presentation">fisiológico</span> <span dir="ltr" style="left: 652.568px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de</span> <span dir="ltr" style="left: 683.351px; top: 860.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.907611);" role="presentation">los</span> <span dir="ltr" style="left: 72.6px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.908574);" role="presentation">microorganismos</span> <span dir="ltr" style="left: 212.109px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.873419);" role="presentation">anaerobios</span> <span dir="ltr" style="left: 303.851px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.845132);" role="presentation">presentes</span> <span dir="ltr" style="left: 384.388px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">en</span> <span dir="ltr" style="left: 413.975px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927926);" role="presentation">el</span> <span dir="ltr" style="left: 439.533px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.936839);" role="presentation">lodo</span> <span dir="ltr" style="left: 484.098px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920814);" role="presentation">granular,</span> <span dir="ltr" style="left: 562.224px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.895605);" role="presentation">con</span> <span dir="ltr" style="left: 601.011px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96966);" role="presentation">inhibición</span> <span dir="ltr" style="left: 687.363px; top: 881.008px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.848678);" role="presentation">de </span><span dir="ltr" style="left: 72.6px; top: 902.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.892994);" role="presentation">actividad de la ureasa y afectación del proceso de digestión anaeróbica, lo cual reduce</span> <span dir="ltr" style="left: 72.6px; top: 923.201px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.896602);" role="presentation">la eficiencia de estos sistemas de tratamiento biológico.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37380 Notas sobre la familia Torridincolidae en Venezuela (Insecta: coleoptera) 2021-12-16T20:56:19+00:00 Mauricio García liocanthydrus@yahoo.com <p><span id="page30R_mcid30" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 519.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.917294);" role="presentation">Se registran los géneros</span> <span dir="ltr" style="left: 263.283px; top: 519.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.96005);" role="presentation">Claudiella</span> <span dir="ltr" style="left: 348.283px; top: 519.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.920863);" role="presentation">Reichardt, 1973,</span> <span dir="ltr" style="left: 479.917px; top: 519.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.02639);" role="presentation">Iapir</span> <span dir="ltr" style="left: 524.167px; top: 519.725px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.930336);" role="presentation">Py-Daniel, Fonseca y</span> <span dir="ltr" style="left: 72.6px; top: 540.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.908623);" role="presentation">Barbosa, 1993 e</span> <span dir="ltr" style="left: 201.833px; top: 540.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.888797);" role="presentation">Ytu</span> <span dir="ltr" style="left: 233.083px; top: 540.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.947296);" role="presentation">Reichardt, 1973 de la familia Torridincolidae en Venezuela.</span> <span dir="ltr" style="left: 72.6px; top: 561.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.906238);" role="presentation">Todas las especies son de hábitos higropétricos recolectados en varias localidades </span><span dir="ltr" style="left: 72.6px; top: 582.958px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.898298);" role="presentation">de los estados Amazonas y Bolívar.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37381 Phanocerus guaquira nueva especie de escarabajo acuático (coleoptera: Elmidae) de Yaracuy, Venezuela 2021-12-16T21:13:16+00:00 María Leal-Duarte marialeald@gmail.com Alfredo Briceño-Santos marialeald@gmail.com José Elí Rincón-Ramírez marialeald@gmail.com <p><span id="page30R_mcid34" class="markedContent"><span dir="ltr" style="left: 72.6px; top: 485.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.910381);" role="presentation">Se describe una nueva especie de escarabajo acuático,</span> <span dir="ltr" style="left: 495.717px; top: 485.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.927268);" role="presentation">Phanocerus guaquira</span><span dir="ltr" style="left: 657.967px; top: 485.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(1.01406);" role="presentation">, el</span> <span dir="ltr" style="left: 72.6px; top: 506.925px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.898904);" role="presentation">cual pertenece a la familia Elmidae y cuya característica diagnostica es la forma de</span> <span dir="ltr" style="left: 72.6px; top: 528.125px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.952147);" role="presentation">su pronoto, con surcos y depresiones que le separan del resto de las especies</span> <span dir="ltr" style="left: 72.6px; top: 549.125px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.880024);" role="presentation">descritas. Los ejemplares fueron colectados en parches de hojarasca en la quebrada</span> <span dir="ltr" style="left: 72.6px; top: 570.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.981232);" role="presentation">Herrera II, estado Yaracuy, utilizando un dispositivo para colecta de insectos </span><span dir="ltr" style="left: 72.6px; top: 591.358px; font-size: 18.4px; font-family: sans-serif; transform: scaleX(0.885231);" role="presentation">acuáticos. Se ilustran órganos genitales y otros caracteres diagnósticos.</span></span></p> 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37384 Instrucciones a los Autores 2021-12-16T21:24:50+00:00 Teresa Martinez Leones boletincibluz@gmail.com 2021-12-16T00:00:00+00:00 Derechos de autor https://produccioncientificaluz.org/index.php/boletin/article/view/37385 Instructions for Contributors 2021-12-16T21:29:09+00:00 Teresa Martinez Leones boletincibluz@gmail.com 2021-12-16T00:00:00+00:00 Derechos de autor