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Variability in energy density of forage fishes from the Bay of Biscay (north‐east Atlantic Ocean): reliability of functional grouping based on prey quality |
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| Authors: | J. Spitz J. Jouma'a |
| Affiliation: | 1. Littoral Environnement et Sociétés, UMR 7266 Université de La Rochelle/CNRS, , 17042 La Rochelle, Cedex, France;2. Marine Mammal Research Unit, Fisheries Centre, University of British Columbia, , Vancouver, British Columbia, V6T 1Z4 Canada;3. Observatoire Pelagis, UMS 3462 Université de La Rochelle/CNRS, , 17071 La Rochelle, France |
| Abstract: | Energy densities of 670 fishes belonging to nine species were measured to evaluate intraspecific variability. Functional groups based on energy density appeared to be sufficiently robust to individual variability to provide a classification of forage fish quality applicable in a variety of ecological fields including ecosystem modelling. |
| Keywords: | calorific value ecological groups functional ecology prey profitability |