Trophic ecology of a large-bodied marine predator, bluntnose sixgill shark Hexanchus griseus, inferred using stable isotope analysis
@article{Reum2020TrophicEO, title={Trophic ecology of a large-bodied marine predator, bluntnose sixgill shark Hexanchus griseus, inferred using stable isotope analysis}, author={Jonathan C P Reum and Gregory D. Williams and Chris J. Harvey and Kelly S. Andrews and Phillip S. Levin}, journal={Environmental Biology of Fishes}, year={2020}, pages={1-16} }
Identifying feeding patterns of large-bodied predators is necessary for predicting their potential effects on food web dynamics. However, diet information from stomach contents can be impractical to obtain because required sample sizes can be prohibitively large. In contrast, diet estimates obtained using Bayesian stable isotope mixing models require less sampling effort and can also reveal both population- and individual-level variation in diet. Here, we used an extensive stable isotope data…
2 Citations
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- Environmental ScienceEcological applications : a publication of the Ecological Society of America
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The circumstances and approaches that are necessary to evaluate niche partitioning and individual specialization are discussed, and key considerations for the associated application of stable isotope ratios are outlined.
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The application of stable isotope analysis (SIA) is increasing in elasmobranch trophic ecology, but inconsistency remains in terms of the tissue pre-treatment methods chosen to remove biases…
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