%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Sardenne, Fany
%A Raynon, T.
%A Munaron, Jean-Marie
%A van der Lingen, C. D.
%A Sadio, O.
%A Diop, K.
%A Brosset, P.
%A Lebigre, C.
%A Soudant, P.
%A Vagner, M.
%A Pecquerie, Laure
%T Lipid-correction models for delta13C values across small pelagic fishes (Clupeiformes) from the Atlantic Ocean
%D 2023
%L fdi:010088733
%G ENG
%J Marine Environmental Research
%@ 0141-1136
%K Carbon isotope ; Clupeiformes ; C:N ratio ; Lipid removal ; Trophic ecology
%K ATLANTIQUE
%M ISI:001100567500001
%P 106213 [6 ]
%R 10.1016/j.marenvres.2023.106213
%U https://www.documentation.ird.fr/hor/fdi:010088733
%> https://www.documentation.ird.fr/intranet/publi/2024-01/010088733.pdf
%V 192
%W Horizon (IRD)
%X The interpretation of delta C-13 values in trophic ecology requires standardization of the lipid content of organisms estimated through their C:N ratio. To avoid time-consuming lipid extractions, the use of mathematical corrections has been developed for many years, and the conclusions generally point in the direction of species-specific adjustment of the models. This study aimed at defining the maximum taxonomic level required to obtain the best corrected delta C-13 values in small pelagic fish of the order Clupeiformes. delta C-13 values of six species were analyzed bulk and lipid-free, and were used to fit and validate linear and mass-balance models at different taxonomic levels. Despite a species effect combined with the C:N ratio effect, the corrected delta C-13 values produced by a global model for the Clupeiformes were as good as or better when compared to lipid-free samples than those produced by species-specific models, paving the way for possible generalization to other species in this order. At the order level, the linear model outperformed the mass-balance model.
%$ 034 ; 021 ; 020