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Are morphometric indices accurate indicators of stored energy in herring Clupea harengus ?
Author(s) -
Davidson D.,
Marshall C. T.
Publication year - 2010
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.1095-8649.2010.02546.x
Subject(s) - clupea , herring , biology , fishery , fish <actinopterygii> , zoology , atlantic herring , food science
The accuracy of the morphometric indices Fulton's K , somatic K and relative condition factor, K n , as measures of individual North Sea herring Clupea harengus muscle fat content was investigated using the Distell Fish Fat meter. The accuracy of fat‐meter readings from an individual fish was validated by comparison with Soxhlet extraction analysis. The studies conducted demonstrated that Fulton's K is not consistently or strongly correlated with individual C. harengus muscle fat content, as defined by the fat‐meter estimates. The study shows that somatic K and K n may be better indices of individual North Sea C. harengus muscle fat content than Fulton's K . These morphometric indices, however, should only be used after prior validation against a more direct measure of fat content.