• DOI:10.3354/MEPS10310
Corpus ID: 56155584

Addressing assumptions: variation in stable isotopes and fatty acids of marine macrophytes can confound conclusions of food web studies

@article{Dethier2013AddressingAV,
  title={Addressing assumptions: variation in stable isotopes and fatty acids of marine macrophytes can confound conclusions of food web studies},
  author={M. Dethier and Elizabeth A. Sosik and A. W. E. Galloway and D. O. Duggins and C. Simenstad},
  journal={Marine Ecology Progress Series},
  year={2013},
  volume={478},
  pages={1-14}
}

• M. Dethier, Elizabeth A. Sosik, +2 authors C. Simenstad
• Published 2013
• Biology
• Marine Ecology Progress Series

Studies that use biomarkers to elucidate consumer diets often must assume that these signa- tures are relatively invariant in space and time. We tested this assumption for multiple stable isotopes (MSI: δ 13 C, δ 15 N, δ 34 S) and fatty acids in 10 marine macrophytes (macroalgae and seagrass) on 3 different dates, and also quantified MSI at 3 sites in the coastal northeast Pacific. For all comparisons, we found sig- nificant variation in biomarkers among species, sites, and dates; furthermore… Expand

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