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

By M. Dethier, E. A. Sosik, A. Galloway, D. Duggins, C. Simenstad. 2013

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Connected macroalgal‐sediment systems: blue carbon and food webs in the deep coastal ocean (2019, background): “Stable isotope tracing studies are influenced by spatial and temporal variations in the isotopic values of both sources and consumers (Miller and Page 2012, Dethier et al. 2013, Kopp et al. 2015) and this has been identified as a challenge in studies tracing macroalgal carbon (Hill et al. 2015).”
Diet-specific biomarkers show that high-quality phytoplankton fuels herbivorous zooplankton in large boreal lakes (2014, result): “For example, previous work with an early version of the model used here showed that the use of both SI and FA variables concurrently improved the performance of the mixing model in resolving the theoretical diets of modelled consumers (Dethier et al., 2013).”