Methods for Trophic Ecology Assessment in Fishes: A Critical Review of Stomach Analyses

Estevan Luiz Da Silveira, Nabil Semmar, Joan E. Cartes, Victor M. Tuset, Antoni Lombarte, Eduardo Luis Cupertino Ballester & André Martins Vaz-Dos-Santos
Assessment of fish trophic ecology in natural environments is imperative to understand biological and ecological requirements, supporting the management and conservation of populations and environments. There are several methods available to assess fish diets, generically divided in noninvasive approaches, such as underwater observations, and invasive approaches, such as analyses of lipid biomarkers, stable isotopes and stomach contents. Each one has application assumptions and conditions that must be aligned with study objectives and methodological criteria, assuring...
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