Zooplankton composition, abundance and water quality in a microreservoir at Morelos State

The aim of the present work was to analyze the zooplankton composition, abundance and species richness at Huitchila microreservoir (called “bordo” in Spanish), Morelos, Mexico and their relationship with environmental conditions between September 2010 and September 2011. Sixteen zooplankton species...

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Bibliographic Details
Main Authors: Gómez-Márquez, José Luis, Peña-Mendoza, Bertha, Guzmán-Santiago, José Luis, Gallardo-Pineda, Verónica
Format: Article in Journal/Newspaper
Language:Spanish
Published: Universidad Autónoma Metropolitana 2017
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Online Access:https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/641
Description
Summary:The aim of the present work was to analyze the zooplankton composition, abundance and species richness at Huitchila microreservoir (called “bordo” in Spanish), Morelos, Mexico and their relationship with environmental conditions between September 2010 and September 2011. Sixteen zooplankton species belonging to three main groups were identified at the “bordo”: 11 rotifers, 3 cladocerans, and 2 copepods. The most frequent species was the copepod Arctodiaptomus dorsalis, occurring in 100% of the samples, with a density of 1 182 org/L. Among the cladocerans, Diaphanosoma birgei was the most frequent and abundant (100% and 85 org/L, respectively). The most abundant rotifer species was Brachionus falcatus (1 511 org/L) and the most frequent was B. caudatus (92%). The family Brachionidae had the highest species richness in the surveyed system. The highest zooplankton abundances and species richness were recorded during the dry season. Huitchila microreservoir is a eutrophic system, with warm water (20.3-28 °C), high availability of dissolved oxygen (4.1-16.2 mg/L), slightly alkaline, hard waters, with low conductivity (693-1258 µS/cm). This aquatic system is productive and has high food availability for the tilapia Oreochromis niloticus, a local fisheries resource. El objetivo de este trabajo fue analizar la composición, abundancia y riqueza de especies del zooplancton en el bordo Huitchila, Morelos, México y su relación con los factores ambientales durante el periodo septiembre de 2010 a septiembre de 2011. Se identificaron 16 especies pertenecientes a tres grupos principales: 11 rotíferos, 3 cladóceros y 2 copépodos. La especie más frecuente fue el copépodo Arctodiaptomus dorsalis, presente en el 100% de las muestras, con densidad de 1 182 org/L. Entre los cladóceros la especie más frecuente y abundante fue Diaphanosoma birgei (100% y 85 org/L, respectivamente). La especie de rotíferos más abundante fue Brachionus falcatus (1 511 org/L) y la más frecuente B. caudatus (92%). La familia Brachionidae registró la ...