Premium
Age determination and backcalculation of pike length through use of the metapterygoid bone
Author(s) -
Sharma C. M.,
Borgstrøm R.
Publication year - 2007
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.1095-8649.2007.01435.x
Subject(s) - pike , esox , biology , fishery , fish <actinopterygii>
The validity of the metapterygoid bone of pike Esox lucius for use in age determination and backcalculation of total length ( L T ) was evaluated by using tagged pike recaptured after 4 months to 3 years. A regression equation for the relationship between pike L T and metapterygoid length was estimated, and no significant deviations between the backcalculated and expected L T at tagging were found for recaptured pike. The results confirm that 1) the checks are formed annually and 2) no false checks appeared on the metapterygoids of pike.