Environmental Science
6 years ago

Arctic food web models revolutionized by trophic discrimination factor selection.

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Marine Ecology Progress Series
Implications of trophic discrimination factor selection for stable isotope food web models of low trophic levels in the Arctic nearshore
MB Barton, SY Litvin, JJ Vollenweider, RA Heintz, BL Norcross, Kevin M. Boswell

Paper Summary

Stable isotope analysis helps understand Arctic food webs. Scientists studied fish in the Beaufort and Chukchi Seas using different trophic discrimination factors (TDFs). They found that the choice of TDFs greatly affects predictions of prey resources in Arctic marine ecosystems. The study identified the most suitable TDFs for modeling low trophic levels in the Arctic nearshore.

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