Stable isotope analysis reveals diet niche partitioning between native species and the invasive black bullhead (Ameiurus melas Rafinesque, 1820)
István Czeglédi,
András Specziár,
Bálint Preiszner
et al.
Abstract:The introduction and spread of alien fish species pose a major threat to native communities and ecosystem functioning in freshwaters. Black bullhead is one of the most successful invaders in European waters with several detrimental effects on native biota and ecosystems. In this study, we used stable isotope analysis to compare the body size and season-dependent diet, trophic position, isotopic niche size, and niche overlap of the invasive black bullhead with two native fish species (roach and European perch) … Show more
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