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The food of brown trout in Llyn Alaw, Anglesey, North Wales
Author(s) -
Hunt P. C.,
Jones J. W.
Publication year - 1972
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/j.1095-8649.1972.tb05682.x
Subject(s) - fauna , brown trout , trout , biology , fishery , ecology , invertebrate , fish <actinopterygii>
The results of the analysis of the contents of 274 brown trout stomachs taken over a period of one year from Llyn Alaw, in Anglesey, North Wales, are described. The annual composition and seasonal changes of the diet were determined using number, volume and occurrence methods. The bottom fauna is classified according to accessibility to the trout as food and the utilization and apparent selection of the fauna by the trout is discussed. Food in relation to trout size is considered in detail.