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Abstract:

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. © 2016 Universidad Autonoma de Baja California. All rights reserved.

Registro:

Documento: Artículo
Título:Diversity of copepods in Atlantic patagonian coastal waters throughout an annual cycle
Autor:Spinelli, M.L.; Gonçalves, R.J.; Villafañe, V.E.; Capitanio, F.L.
Filiación:Laboratorio de Zooplancton Marino, Departamento de Biodiversidad y Biología Experimental, Universidad de Buenos Aires, Argentina
Instituto de Biodiversidad y Biología Experimental y Aplicada, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón 2, 4to. piso, Ciudad Universitaria, Buenos Aires, C1428EGA, Argentina
Consejo Nacional de Investigación Científicas y Técnicas (CONICET), Argentina
Estación de Fotobiología Playa Unión, Juan Manuel de Rosas y Martín Rivadavia Playa Unión, Rawson, Chubut, Argentina
Palabras clave:Argentinean sea; Harpacticoid copepods; Phytoplankton; Zooplankton; annual cycle; coastal water; phytoplankton; species diversity; succession; zooplankton; Argentina; Atlantic Coast [South America]; Patagonia; Bacillariophyta; Calanoides carinatus; Copepoda; Euterpina acutifrons; Harpacticoida; Mastigophora (flagellates); Paracalanus parvus
Año:2016
Volumen:42
Número:1
Página de inicio:31
Página de fin:47
DOI: http://dx.doi.org/10.7773/cm.v42i1.2585
Título revista:Ciencias Marinas
Título revista abreviado:Cienc. Mar.
ISSN:01853880
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01853880_v42_n1_p31_Spinelli

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Citas:

---------- APA ----------
Spinelli, M.L., Gonçalves, R.J., Villafañe, V.E. & Capitanio, F.L. (2016) . Diversity of copepods in Atlantic patagonian coastal waters throughout an annual cycle . Ciencias Marinas, 42(1), 31-47.
http://dx.doi.org/10.7773/cm.v42i1.2585
---------- CHICAGO ----------
Spinelli, M.L., Gonçalves, R.J., Villafañe, V.E., Capitanio, F.L. "Diversity of copepods in Atlantic patagonian coastal waters throughout an annual cycle " . Ciencias Marinas 42, no. 1 (2016) : 31-47.
http://dx.doi.org/10.7773/cm.v42i1.2585
---------- MLA ----------
Spinelli, M.L., Gonçalves, R.J., Villafañe, V.E., Capitanio, F.L. "Diversity of copepods in Atlantic patagonian coastal waters throughout an annual cycle " . Ciencias Marinas, vol. 42, no. 1, 2016, pp. 31-47.
http://dx.doi.org/10.7773/cm.v42i1.2585
---------- VANCOUVER ----------
Spinelli, M.L., Gonçalves, R.J., Villafañe, V.E., Capitanio, F.L. Diversity of copepods in Atlantic patagonian coastal waters throughout an annual cycle . Cienc. Mar. 2016;42(1):31-47.
http://dx.doi.org/10.7773/cm.v42i1.2585