@article{Martínez_Polanco-Marin_Reyes-Luján_2021, title={Variación de la comunidad fitoplanctónica en piscinas de cultivo semi-intensivo de Litopenaeus vannamei en el lago de Maracaibo, Venezuela: Variation of the phytoplanktonic community in pools of semi-intensive culture of Litopenaeus vannamei in lake Maracaibo, Venezuela}, volume={10}, url={https://produccioncientificaluz.org/index.php/redieluz/article/view/35522}, abstractNote={<p><span style="left: 109.884px; top: 662.483px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.942425);">El objetivo de este trabajo es analizar la varia-</span><span style="left: 87.9144px; top: 681.86px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.982611);">ción de la comunidad fitoplanctonica en piscinas </span><span style="left: 87.9144px; top: 701.236px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00222);">de cultivo semi-intensivo de </span><span style="left: 302.489px; top: 701.236px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.0009);">Litopenaeus vannamei</span><span style="left: 87.9314px; top: 720.613px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.991703);">en el Lago de Maracaibo, Venezuela. Se deter-</span><span style="left: 87.9314px; top: 739.989px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.0371);">minaron las siguientes variables fisicoquímicas al </span><span style="left: 87.9314px; top: 759.366px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00906);">agua: Salinidad, oxigeno disuelto (mg/L), pH, Tem-</span><span style="left: 87.9314px; top: 778.742px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.983656);">peratua (ºC), transparencia (cm), </span><span style="left: 355.928px; top: 778.742px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00035);">amonio </span><span style="left: 420.198px; top: 778.742px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00047);">(mg/L), </span><span style="left: 87.9314px; top: 798.119px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.0005);">nitrato </span><span style="left: 141.507px; top: 798.119px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.936519);">(mg/L), nitrito (mg/L) y fósforo (mg/L). Para </span><span style="left: 87.9314px; top: 817.495px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02924);">el análisis del fitoplancton se colectaron muestras </span><span style="left: 87.9314px; top: 836.872px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.949245);">de agua, la densidad se determinó utilizando una </span><span style="left: 87.9314px; top: 856.248px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.989355);">cámara de un hematocitometro con rayado de Neu-</span><span style="left: 87.9314px; top: 875.625px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00193);">bauer (Cél/ml) y la ubicación taxonomica se realizó </span><span style="left: 87.9314px; top: 895.001px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02389);">hasta la categoría de género. Se identificaron tres </span><span style="left: 87.9314px; top: 914.378px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00405);">grupos funcionales: Cyanobacteria, Heterokonto</span><span style="left: 468.537px; top: 914.378px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 87.9314px; top: 933.754px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.952109);">phyta y Chlorophyta, distribuidos en 16 familias y </span><span style="left: 87.9314px; top: 953.131px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.965434);">20 géneros, siendo Cyanobacteria y Heterokonto</span><span style="left: 468.537px; top: 953.131px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 87.9314px; top: 972.507px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.991898);">phyta (diatomeas) los más numerosos por el núme-</span><span style="left: 87.9314px; top: 991.884px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00144);">ro de géneros identificados. La abundancia relativa </span><span style="left: 87.9314px; top: 1011.26px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02012);">fue: cianobacterias (70,79%) &gt; clorofitas (22,74%) </span><span style="left: 87.9314px; top: 1030.64px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.997583);">&gt; Heterokontophyta (6,47%). En relacion con la </span><span style="left: 87.9314px; top: 1050.01px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.959448);">densidad, las cianobacterias (570,59 ± 96,56 Cél/</span><span style="left: 87.9314px; top: 1069.39px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.962073);">ml) fueron las más dominantes, seguidas por las </span><span style="left: 492.826px; top: 629.785px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02501);">clorofitas (183,31 ± 30,01 Cél/ml) y las heterokon</span><span style="left: 873.431px; top: 629.785px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 492.826px; top: 649.162px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02346);">tofitas (52,17 ± 7,54 Cél/ml). </span><span style="left: 717.942px; top: 649.162px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.03131);">La densidad total del </span><span style="left: 492.826px; top: 668.538px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.997105);">fitoplancton se relacionó positivamente con el </span><span style="left: 840.256px; top: 668.538px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00014);">nitra-</span><span style="left: 492.826px; top: 687.915px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.913407);">to (r= 0,522, </span><span style="left: 594.519px; top: 687.915px; font-size: 17.0568px; font-family: sans-serif;">p</span><span style="left: 604.002px; top: 687.915px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.906758);"> &lt; 0,05) y de forma negativa con la </span><span style="left: 492.826px; top: 707.291px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.927251);">salinidad del agua (r= - 0,511, </span><span style="left: 731.964px; top: 707.291px; font-size: 17.0568px; font-family: sans-serif;">p</span><span style="left: 741.448px; top: 707.291px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.916638);"> &lt; 0,05). Las Cia-</span><span style="left: 492.826px; top: 726.668px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.999759);">nobacterias (r= 0,541,</span><span style="left: 659.103px; top: 726.668px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.996294);"> p</span><span style="left: 673.266px; top: 726.668px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.9989);"> &lt; 0,05) y clorofitas se rela</span><span style="left: 873.413px; top: 726.668px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 492.826px; top: 746.044px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00908);">cionaron con el nitrato (r= 0,619,</span><span style="left: 740.975px; top: 746.044px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02989);"> p</span><span style="left: 755.617px; top: 746.044px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.01448);"> &lt; 0,05), las cia-</span><span style="left: 492.826px; top: 765.421px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.01417);">nobacterias con la salinidad (r= -0,557, </span><span style="left: 796.028px; top: 765.421px; font-size: 17.0568px; font-family: sans-serif;">p</span><span style="left: 805.511px; top: 765.421px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.03631);"> &lt; 0,05) y </span><span style="left: 492.826px; top: 784.797px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.01382);">las heterokontofitas con la transparencia del agua </span><span style="left: 492.826px; top: 804.174px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00914);">(r= -0,411, </span><span style="left: 576.181px; top: 804.174px; font-size: 17.0568px; font-family: sans-serif;">p</span><span style="left: 585.664px; top: 804.174px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.01066);"> &lt; 0,05). La densidad máxima del fito</span><span style="left: 873.433px; top: 804.174px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 492.826px; top: 823.55px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.950246);">plancton, se registró en julio y agosto, durante la </span><span style="left: 492.826px; top: 842.927px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.01282);">época de lluvia, lo cual incremento la presencia de </span><span style="left: 492.826px; top: 862.303px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00055);">cianobacterias. </span><span style="left: 614.27px; top: 862.303px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.02408);">La elevada densidad fitoplanctoni</span><span style="left: 873.431px; top: 862.303px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 492.826px; top: 881.68px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.03516);">ca es consistente con lo esperado en este tipo de </span><span style="left: 492.826px; top: 901.057px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(0.996433);">ambientes, donde el aporte de nutrientes, especial</span><span style="left: 873.431px; top: 901.057px; font-size: 17.0568px; font-family: sans-serif;">-</span><span style="left: 492.826px; top: 920.433px; font-size: 17.0568px; font-family: sans-serif; transform: scaleX(1.00061);">mente nitratos, favorece su crecimiento</span></p&gt;}, number={2}, journal={REDIELUZ}, author={Martínez, Rosnelsy and Polanco-Marin, Daniel and Reyes-Luján, Jeny}, year={2021}, month={mar.}, pages={87-95} }