Using stable isotopes to assess carbon and nitrogen turnover in the Arctic sympagic amphipod Onisimus litoralis

@article{Kaufman2008UsingSI,
  title={Using stable isotopes to assess carbon and nitrogen turnover in the Arctic sympagic amphipod Onisimus litoralis},
  author={Mette R. Kaufman and Rolf R. Gradinger and Bodil A Bluhm and Diane M. O’Brien},
  journal={Oecologia},
  year={2008},
  volume={158},
  pages={11-22}
}
Food web studies based on stable C and N isotope ratios usually assume isotopic equilibrium between a consumer and its diet. In the Arctic, strong seasonality in food availability often leads to diet switching, resulting in a consumer’s isotopic composition to be in flux between different food sources. Experimental work investigating the time course and dynamics of isotopic change in Arctic fauna has been lacking, although these data are crucial for accurate interpretation of food web… CONTINUE READING
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