论文部分内容阅读
1999～ 2 0 0 0年 ,通过专捕、兼捕 ,共捕鱼感 92 986 5kg ,平均规格 10 2 9kg/尾 ,鱼感种群数量得到了控制。渔具材料要求严格 ,在生殖洄游通道捕捞效果最好。
From 1999 to 2000, the number of fish stocks was controlled through special catches and by-catchs, with a total fishing catch of 92 986 5 kg and average specifications of 10 2 9 kg / tail. Fishing gear material strict requirements, fishing in reproductive migration channel the best.