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Assessment of year class strength in freshwater recreational fish populations
Author(s) -
Cowx I. G.,
Frear P. A.
Publication year - 2004
Publication title -
fisheries management and ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 55
eISSN - 1365-2400
pISSN - 0969-997X
DOI - 10.1046/j.1365-2400.2003.00382.x
Subject(s) - freshwater fish , fishery , fish <actinopterygii> , recreation , class (philosophy) , population , schedule , population dynamics of fisheries , geography , ecology , biology , computer science , artificial intelligence , demography , sociology , operating system
A method for determining relative year class strength (YCS) in unexploited freshwater fish populations from individual surveys, based on reconstruction of the mortality schedule of the target population, is described. The method was tested against traditional approaches of assessment of YCS and the limitations and applicability discussed. The method is useful for analysing the factors regulating YCS in freshwater fisheries.