Lipid correction model of carbon stable isotopes for a cosmopolitan predator, spiny dogfish Squalus acanthias

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.