04 April 2017 9 1K Report

Histological changes in ovaries and testis of migratory species was observed  throughout the year.  The gonadal development stages were clearly identified with characteristics. On the basis of the gonadal development stages , want to estimate the length at first maturity(L50) of this fish.

But now the question i never fully solved, what is sexual maturity , when the fish attain the sexual maturity first time and how to determine it with precision.

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