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Nitrogen stable isotopes (A) and trophic level (B) of Boreomysis arctica in autumn 2017 and winter 2018 in the estuary and the Gulf of St. Lawrence. Note that trophic levels of krill sampled in the LSLE during winter 2015 were added for comparison (Cabrol et al., 2019a). LSLE = Lower St. Lawrence estuary; Mn = Meganyctiphanes norvegica; Ti = Thysanoessa inermis and Tr = Thysanoessa raschii.
