Reference : A stable isotope approach to the eastern Weddell Sea trophic web: focus on benthic am...
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/3718
A stable isotope approach to the eastern Weddell Sea trophic web: focus on benthic amphipods
English
Nyssen, Fabienne mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Systématique et diversité animale >]
Brey, Thomas [Alfred Wegener Institute for Polar and Marine Research > > > >]
Lepoint, Gilles mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Bouquegneau, Jean-Marie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
De Broyer, Claude [Institut Royal des Sciences Naturelles de Belgique - IRSNB > > > >]
Dauby, Patrick mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Systématique et diversité animale >]
2001
Polar Biology
Springer-Verlag
25
4
Yes (verified by ORBi)
International
0722-4060
New York
280-287
[en] amphipod ; Wedell Sea ; Stable isotopes ; trophic web ; biodiversity
[en] isotope (C-13/C-12 and N-15/N-14) analyses were performed on 90 species belonging to different benthic communities sampled in the eastern Weddell Sea. The study focused on eight amphipod species whose isotopic composition was compared to their previously described respective gut contents. Amphipod stable isotope ratios correspond fairly accurately to the trophic classification based on gut contents and attest to their wide spectrum of feeding types. Since the fundamental difference between the isotope and the gut content approaches to diet studies is the time scale each method addresses. this coincidence indicates that there would be no significant changes in feeding strategies over time. Three levels of the food web are covered by the eight species and, instead of belonging strictly to one trophic category, amphipods display a continuum of values from the suspension-feeder to scavengers.
Centre Interfacultaire de Recherches en Océanologie - MARE
Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
http://hdl.handle.net/2268/3718
http://www.springerlink.com/content/v117nm7d8qev3vg3/
The original publication is available at www.springerlink.com

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