Dietary ontogeny and niche shift to piscivory in lacustrine brown trout Salmo trutta revealed by stomach content and stable isotope analyses

The feeding ecology and ontogeny of a large size range of brown trout Salmo trutta in Lake Fyresvatnet, southern Norway, were examined by stomach content and stable isotope analyses. According to the stomach contents, the S. trutta changed their diet at c. 30 cm total length (LT). The smaller size c...

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Veröffentlicht in:	Journal of fish biology 2012-06, Vol.80 (7), p.2448-2462
Hauptverfasser:	Jensen, H., Kiljunen, M., Amundsen, P.-A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Carbon Isotopes - analysis coregonids Diet Feeding Behavior - physiology feeding ecology Food Chain Gastrointestinal Contents Nitrogen Isotopes - analysis piscivore predation Predatory Behavior - physiology SIAR trophic position Trout - metabolism Trout - physiology
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