Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle

Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle

The aim of this study is to analyze the annual zooplankton succession at a coastal station in Patagonia (Argentina), with special emphasis on copepods and their potential preys, using solar radiation and temperature as environmental factors. The annual plankton cycle exhibited autumn/winter and spri...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Spinelli, Mariela L, Conçalves, Rodrigo J, Villafañe, Virginia E, Capitanio, Fabiana L
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2016
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2585
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id repositorioinstitucional-20.500.12930-7496
record_format dspace
spelling repositorioinstitucional-20.500.12930-74962023-05-09T14:30:48Z Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle Diversidad de copépodos en aguas costeras de la Patagonia en el Atlántico a lo largo de un ciclo anual Spinelli, Mariela L Conçalves, Rodrigo J Villafañe, Virginia E Capitanio, Fabiana L The aim of this study is to analyze the annual zooplankton succession at a coastal station in Patagonia (Argentina), with special emphasis on copepods and their potential preys, using solar radiation and temperature as environmental factors. The annual plankton cycle exhibited autumn/winter and spring/summer phases. During the autumn/winter phase, low temperature and radiation were correlated with higher diatom abundance and copepod diversity. This period was characterized by a dominant classical herbivorous food web in which the large copepod Calanoides carinatus dominated the community. On the contrary, during the spring/summer period, with high radiation and temperature levels, flagellates were the dominant food available for zooplankton and correlated with smaller species of copepods such as the harpacticoid Euterpina acutifrons. Also, intensive reproduction of the small copepods E. acutifrons and Paracalanus parvus occurred mainly in summer. On the other hand, high species diversity was found in winter when the ultraviolet radiation was low. The temporal pattern of the copepods observed in our study was explained by food availability and environmental factors (temperature and solar radiation), although other factors such as predator abundance may also be important in modulating the community. Our results show the importance of copepod abundance dynamics and highlights their key role in the pelagic food web in northern Patagonian coastal waters. El objetivo de este estudio es analizar la sucesión anual del zooplancton en una estación costera en la Patagonia (Argentina), con especial énfasis en copépodos y sus posibles presas, en relación con la radiación solar y la temperatura como factores ambientales. El ciclo anual del plancton mostró dos periodos, otoño/invierno y primavera/verano. Durante el periodo otoño/invierno, la baja temperatura y la radiación se correlacionaron con la mayor abundancia de diatomeas y la mayor diversidad de copépodos. Este periodo se caracterizó por la dominancia de la cadena clásica herbívora, y el copépodo grande Calanoides carinatus dominó la comunidad. Por el contrario, durante el periodo de primavera/verano, con alta radiación y mayores niveles de temperatura, los flagelados fueron el alimento disponible para el zooplancton y se correlacionaron con las especies pequeñas de copépodos como el harpacticoideo Euterpina acutifrons. Además, la reproducción intensiva de los copépodos pequeños E. acutifrons y Paracalanus parvus se llevó a cabo principalmente en verano. Por otro lado, se encontró una alta diversidad de especies en invierno, cuando la radiación ultravioleta fue baja. El patrón temporal de los copépodos observado en nuestro estudio fue explicado por la disponibilidad de alimento y los factores ambientales (temperatura y radiación solar), aunque otros factores tales como la abundancia de los depredadores pueden ser también importantes en la modulación de la comunidad. Nuestros resultados muestran la importancia de la dinámica de la abundancia de copépodos y destaca su papel clave en las cadenas tróficas pelágicas de las aguas costeras de la Patagonia norte. 2016-03-18 2021-06-03T03:55:28Z 2021-06-03T03:55:28Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2585 10.7773/cm.v42i1.2585 https://hdl.handle.net/20.500.12930/7496 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2585/1582 Copyright (c) 2016 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 42 No. 1 (2016); 31-47 Ciencias Marinas; Vol. 42 Núm. 1 (2016); 31-47 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
description The aim of this study is to analyze the annual zooplankton succession at a coastal station in Patagonia (Argentina), with special emphasis on copepods and their potential preys, using solar radiation and temperature as environmental factors. The annual plankton cycle exhibited autumn/winter and spring/summer phases. During the autumn/winter phase, low temperature and radiation were correlated with higher diatom abundance and copepod diversity. This period was characterized by a dominant classical herbivorous food web in which the large copepod Calanoides carinatus dominated the community. On the contrary, during the spring/summer period, with high radiation and temperature levels, flagellates were the dominant food available for zooplankton and correlated with smaller species of copepods such as the harpacticoid Euterpina acutifrons. Also, intensive reproduction of the small copepods E. acutifrons and Paracalanus parvus occurred mainly in summer. On the other hand, high species diversity was found in winter when the ultraviolet radiation was low. The temporal pattern of the copepods observed in our study was explained by food availability and environmental factors (temperature and solar radiation), although other factors such as predator abundance may also be important in modulating the community. Our results show the importance of copepod abundance dynamics and highlights their key role in the pelagic food web in northern Patagonian coastal waters.
format info:eu-repo/semantics/article
author Spinelli, Mariela L
Conçalves, Rodrigo J
Villafañe, Virginia E
Capitanio, Fabiana L
spellingShingle Spinelli, Mariela L
Conçalves, Rodrigo J
Villafañe, Virginia E
Capitanio, Fabiana L
Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
author_facet Spinelli, Mariela L
Conçalves, Rodrigo J
Villafañe, Virginia E
Capitanio, Fabiana L
author_sort Spinelli, Mariela L
title Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
title_short Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
title_full Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
title_fullStr Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
title_full_unstemmed Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle
title_sort diversity of copepods in atlantic patagonian coastal waters throughout an annual cycle
publisher Iniversidad Autónoma de Baja California
publishDate 2016
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2585
_version_ 1792609599553011712

Ejemplares similares