长江野生草鱼性状和生长的研究

STUDIES ON THE CHARACTERS AND THE GROWTH OF THE WILD GRASS CARP IN CHANGJIANG RIVER

本文对长江野生草鱼的性状和生长特性进行了较为详细的研究。计算和分析了雌、雄鱼18项性状比特征与差异,以及随体长的变化规律。为保护长江野生草鱼种质资源,合理捕捞年龄为4～5龄。

In this paper we studied, at some detail, on the characters and the growth of the wild grass carpin Changjiang River with microcomputer, and, calculated and analyzed 18 kinds of the character ratioand the difference which the male and the female have, and their laws varied with the length. It wassuggested that the reasonable fishing age of the fish was 4-5 year old for the purpose of protecting thepopulation quality abundance of the wild grass carp in Changjiang River.