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Lipid correction model of carbon stable isotopes for a cosmopolitan predator, spiny dogfish Squalus acanthias
Author(s) -
Reum J. C. P.
Publication year - 2011
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2011.03120.x
Subject(s) - squalus acanthias , spiny dogfish , biology , akaike information criterion , chondrichthyes , dorsum , predator , zoology , anatomy , ecology , biochemistry , statistics , predation , mathematics
Three lipid correction models were evaluated for liver and white dorsal muscle from Squalus acanthias . For muscle, all three models performed well, based on the Akaike Information Criterion value corrected for small sample sizes (AIC c ), and predicted similar lipid corrections to δ 13 C that were up to 2.8‰ higher than those predicted using previously published models based on multispecies data. For liver, which possessed higher bulk C:N values compared to that of white muscle, all three models performed poorly and lipid‐corrected δ 13 C values were best approximated by simply adding 5.74‰ to bulk δ 13 C values.