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Croissance en longueur et en poids des perchaudes Perca flavescens de la Grande Anse de l'île Perrot au lac Saint-Louis

1972; Canadian Science Publishing; Volume: 29; Issue: 5 Linguagem: Inglês

10.1139/f72-087

0015-296X

Réjean Fortin, Étienne Magnin,

Marine and fisheries research

In this study, growth in length is based upon age determination on the opercular bones of 2170 specimens, collected throughout the year from June 1967 to October 1969. The opercular bone shows allometric growth and this is taken into account in back calculations. Grande Anse perch show comparatively rapid growth. Growth of males is slower than that of females. Seasonal growth extends from May to September. Faster growing fish reach sexual maturity earlier in life. Length–weight relationship exponent is 3.107. Due to the weight of the gonads, female perch show maximum condition index values in winter.