Lipid correction model of carbon stable isotopes for a cosmopolitan predator, spiny dogfish Squalus acanthias
Abstract: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 (AICc), and predicted similar lipid corrections to δ 13C 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 13C values were best approximated by simply adding 5.74‰ to bulk δ 13C values.
Document Type: Research Article
Publication date: 2011-12-01