Linking anatomical and histological traits of the digestive tract to resource consumption and assimilation of omnivorous tetra fishes
Mayara Pereira Neves,
João Paulo de Arruda Amorim,
Rosilene Luciana Delariva
et al.
Abstract:This study explores the interplay between digestive tract traits, food intake, and assimilation in omnivorous tetra fishes (Psalidodon bifasciatus, P. aff. gymnodontus, and Bryconamericus ikaa) from the Iguaçu River basin, an ecologically significant region known for high endemism. We hypothesize that variations in digestive tracts across species would be associated with differences in diet, isotopic composition in fish tissues, and overall diet assimilation. To test this, we employed stereoscopic and light mi… Show more
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