Summer diet of beluga whales inferred by fatty acid analysis of the eastern Beaufort Sea food web

By L. Loseto, G. Stern, T. L. Connelly, D. Deibel, B. Gemmill, A. Prokopowicz, L. Fortier, S. Ferguson. 2009

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Is the poleward expansion by Atlantic cod and haddock threatening native polar cod, Boreogadus saida? (2011, background): “It forms a central part of the diets of seabirds, marine mammals, and commercial ﬁsh species (e.g., Welch et al. 1992; Gjøsæter 2009; Loseto et al. 2009), and itself has been the target of directed ﬁsheries in the Barents Sea.”
Population-specific home ranges and migration timing of Pacific Arctic beluga whales (Delphinapterus leucas) (2014, background): “Arctic cod (Boreogadus saida) are considered to be primary prey item of BS and ECS belugas (Seaman et al. 1982; Loseto et al. 2009), in addition to saffron cod (Eleginus gracilis), shrimp, echiurids, and smoothskin octopus (Benthoctopus leioderma), at least as sampled in stomachs from whales harvest”
On the Use of Stable Isotopes in Trophic Ecology (2011, methodology): “Fatty acid profiling of fatty acid methyl esters (FAMEs) has been used extensively in foraging studies, especially in marine systems (Iverson et al. 2004, Loseto et al. 2009).”