Estimación de la biomasa zooplanctónica frente a la provincia de Santa Elena durante marzo del 2015.
Fecha
2018
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Facultad de Ciencias Naturales, Universidad de Guayaquil
Resumen
El presente estudio tiene como objetivo principal la estimación de la biomasa
zooplanctónica en el área nerítica frente a las costas de la Provincia de Santa Elena
y su relación con la temperatura durante marzo del 2015. La recolección de
muestras se realizó en 12 estaciones ubicadas en el borde costero frente a la
provincia. Se hicieron arrastres superficiales con redes de malla entre 300 y 500
μm, entre los resultados más relevantes está una mayor abundancia de
zooplancton en las estaciones: La Puntilla (500μ) y Anconcito (300 μm),
predominaron los copépodos calanoides y cladóceros Penilia avirostris. La menor
cantidad de organismos se evidenció en Libertador Bolívar (500 μm) y la Puntilla
de (300 μm). En cuanto a la biomasa gravimétrica, hubo correlación positiva entre
peso húmedo, peso seco y abundancia de zooplancteres. La mayor biodiversidad
se halló en Libertador Bolívar (2.30 bits), lugar contiguo a Ayangue (Est. 9) donde
se contó la máxima temperatura superficial del mar de 30°C.
The aim of this study is to estimate the zooplankton biomass in the neritic area off the coast of the Province of Santa Elena and its relationship with environmental factors during March 2015. The collection of samples was carried out in 12 stations located in the coastal edge of the province. Surface trawls were made with mesh networks between 300 and 500 μm, among the most relevant results it was found a greater abundance of zooplankton in the stations: La Puntilla (500μ) and Anconcito (300 μm). The calanoid copepods and cladocerans Penilia avirostris predominated. The smallest number of organisms was evident in Libertador Bolívar (500 μm) and Puntilla de (300 μm). Regarding gravimetric biomass, there was a positive correlation between wet weight, dry weight and abundance of zooplankteres. The highest biodiversity was found in Libertador Bolívar (2.30 bits), adjacent to Ayangue (State 9) where the maximum sea surface temperature, 30 ° C.
The aim of this study is to estimate the zooplankton biomass in the neritic area off the coast of the Province of Santa Elena and its relationship with environmental factors during March 2015. The collection of samples was carried out in 12 stations located in the coastal edge of the province. Surface trawls were made with mesh networks between 300 and 500 μm, among the most relevant results it was found a greater abundance of zooplankton in the stations: La Puntilla (500μ) and Anconcito (300 μm). The calanoid copepods and cladocerans Penilia avirostris predominated. The smallest number of organisms was evident in Libertador Bolívar (500 μm) and Puntilla de (300 μm). Regarding gravimetric biomass, there was a positive correlation between wet weight, dry weight and abundance of zooplankteres. The highest biodiversity was found in Libertador Bolívar (2.30 bits), adjacent to Ayangue (State 9) where the maximum sea surface temperature, 30 ° C.
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Palabras clave
ZOOPLANCTON, BIOMASA, PESO SECO, PESO HÚMEDO, ABUNDANCIA