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Título: | Spring-time zooplankton size structure over the continental shelf of the Bay of Biscay |
Autor: | Vandromme, Pieter; Nogueira, Enrique CSIC ORCID CVN; Huret, Martin; López-Urrutia-Lorente, Ángel; González-Nuevo, Gonzalo; Sourisseau, Marc; Petitgas, Pierre | Palabras clave: | zooplankton Centro Oceanográfico de Gijón Medio Marino size-structure LOPC (laser optical plankton counter) Bay of Biscay |
Fecha de publicación: | 16-oct-2014 | Editor: | European Geosciences Union | Citación: | Ocean Science 10(5) : 2207-2254 (2014) | Resumen: | Linking lower and higher trophic levels requires special focus on the essential role played by mid-trophic levels, i.e., the zooplankton. One of the most relevant information regarding zooplankton in terms of flux of energy lies in its size structure. In this study, an extensive dataset 5 of size measurements is presented, covering parts of the western European continental shelf and slope, from the Galician coast to the Ushant front, during the springs from 2005 to 2012. Zooplankton size spectra were estimated using measurements carried out in situ with the Laser- Optical Plankton Counter (LOPC) and with an image analysis of WP2 net samples (200 μm mesh size) performed following the ZooScan methodology. The LOPC counts and sizes parti10 cles within 100–2000 μm of spherical equivalent diameter (ESD), whereas the WP2/ZooScan allows counting, sizing and identification of zooplankton from 400 μm ESD. The difference between the LOPC (all particles) and the WP2/ZooScan (zooplankton only) was assumed to provide the size distribution of non-living particles, whose descriptors were related to a set of explanatory variables (including physical, biological and geographic descriptors). A statistical 15 correction based on these explanatory variables was further applied to the LOPC size distribution in order to remove the non-living particles part, and therefore estimate the size distribution of zooplankton. This extensive data set provides relevant information about the zooplankton size distribution variability, productivity and trophic transfer efficiency in the pelagic ecosystem of the Bay of Biscay at a regional and interannual scale. | Versión del editor: | https://doi.org/10.5194/os-10-821-2014 | URI: | http://hdl.handle.net/10261/319158 | DOI: | 10.5194/os-10-821-2014 | ISSN: | 1812-0822 | E-ISSN: | 1812-0792 |
Aparece en las colecciones: | (IEO) Artículos |
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Vandromme_et_al_2014_OS.pdf | 1,27 MB | Adobe PDF | Visualizar/Abrir |
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