Assessment of Compound-Specific Fatty Acid δ¹³C and δ²H Values to Track Fish Mobility in a Small Sub-alpine Catchment.

ABSTRACT: Methods for identifying origin, movement, and foraging areas of animals are essential for understanding ecosystem connectivity, nutrient flows, and other ecological processes. Telemetric methods can provide detailed spatial coverage but are limited to a minimum body size of specimen for tagging. In recent years, stable isotopes have been increasingly used to track animal migration by linking landscape isotope patterns into movement (isoscapes). However, compared to telemetric methods, the spatial resolution of bulk stable isotopes is low. Here, we examined a novel approach by evaluating the use of compound-specific hydrogen and carbon stable isotopes of fatty acids (δ²H_FA and δ¹³C_FA) from fish liver, muscle, brain, and eye tissues for identifying

SUBMITTER: Pilecky M 

PROVIDER: S-EPMC9352314 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature