Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/47633
Título: Vertical distribution of zooplankton and active flux across an anticyclonic eddy in the Canary Island waters
Autores/as: Yebra, L.
Almeida, C. 
Hernández-León, S. 
Clasificación UNESCO: 251001 Oceanografía biológica
Palabras clave: Zooplankton
Vertical distribution
Metabolism
Carbon flux
Canary Islands
Fecha de publicación: 2005
Editor/a: 0967-0637
Publicación seriada: Deep-Sea Research Part I: Oceanographic Research Papers 
Resumen: The vertical distribution (0–900 m) of zooplankton biomass and indices of feeding (gut fluorescence, GF) and metabolism (electron transfer system, ETS) were studied across an anticyclonic eddy south of Gran Canaria Island (Canary Islands). Two dense layers of organisms were clearly observed during the day, one above 200 m and the other at about 500 m, coincident with the deep scattering layer (DSL). The biomass displacement due to interzonal migrants in the euphotic zone was more than 2-fold higher than that previously reported for the southern area of this archipelago. The gut flux estimated (0.14–0.44 mgC m−2 d−1) was similar to the values previously found in the Canaries. The respiratory flux outside the eddy (1.85 mgC m−2 d−1) was in the lower range of values reported for this area. Inside the eddy, migrant biomass and respiration rates were 2- and 4- fold higher than in the surrounding waters. Active flux mediated by diel vertical migrants inside the eddy (8.28 mgC m−2 d−1) was up to 53% of the passive carbon flux to the mesopelagic zone (15.8 mgC m−2 d−1). It is, therefore, suggested that the anticyclonic eddy enhanced both migration from deep waters and active flux.
URI: http://hdl.handle.net/10553/47633
ISSN: 0967-0637
DOI: 10.1016/j.dsr.2004.08.010
Fuente: Deep-Sea Research Part I: Oceanographic Research Papers [ISSN 0967-0637], v. 52, p. 69-83
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