Age, growth and maturity of the white bream Blicca bjoerkna (L.) in Lake Øyeren, SE Norway
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Abstract
Age, growth and maturity have been examined in a material of white bream Blicca bjoerkna (L.) collected in Lake Øyeren between April 1974 and October 1975, and in September 1976. Opercular bones were found more suitable than scales for age determination. As the inner zones in operculars from older fish often could be missing, scales were used for control. The females of white bream reach maturity at an age of 4 years, and most males mature one year earlier. When maturity is reached, the males grow slower than the females, and also have a shorter life span. Spawning takes place in June.
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Hansen, L. P. (1980). Age, growth and maturity of the white bream Blicca bjoerkna (L.) in Lake Øyeren, SE Norway. Fauna Norvegica, 1, 15-23. https://doi.org/10.5324/fn.v1i0.6152
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