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Lake bathymetry and species occurrence predict the distribution of a lacustrine apex predator
Author(s) -
Hughes M. R.,
Dodd J. A.,
Maitland P. S.,
Adams C. E.
Publication year - 2016
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12919
Subject(s) - brown trout , salmo , salvelinus , biology , apex predator , predator , trout , fontinalis , ecology , abiotic component , fishery , arctic , freshwater ecosystem , salmonidae , ecosystem , predation , fish <actinopterygii>
This study examined the abiotic and biotic characteristics of ecosystems that allow expression of a life history called ferox trout, the colloquial name given to brown trout Salmo trutta adopting a piscivorous life history strategy, an apex predator in post‐glacial lakes in northern Europe. One hundred and ninety‐two lakes in Scotland show evidence of currently, or historically, supporting ferox S. trutta ; their presence was predicted in logistic models by larger and deeper lakes with a large catchment that also support populations of Arctic charr Salvelinus alpinus .