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The influence of temperature on the onset of first maturity in sea bass
Author(s) -
Pawson M. G.,
Pickett G. D.,
Witthames P. R.
Publication year - 2000
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.1095-8649.2000.tb02109.x
Subject(s) - dicentrarchus , biology , sea bass , bass (fish) , gonad , sexual maturity , fishery , development of the gonads , zoology , maturity (psychological) , oocyte , fish <actinopterygii> , ecology , anatomy , psychology , developmental psychology , embryo
Oocyte development was aborted and full maturity did not occur in virgin female sea bass Dicentrarchus labrax unless they remained in water above 10° C during the main period of gonad development. There was no difference in the condition factors of females with high or low I G values in March, which indicates that retarded gonadal development was not necessarily due to poor body condition or nutritional state. It is suggested that the extended duration of the adolescent phase of female bass around southern Britain is a response to their environment, rather than an intrinsic aspect of the species'biology.