洛河垂钓渔获物组成分析

2009年4月在河南省洛阳市洛河中随机采取垂钓渔获物样本288尾,进行体长、年龄测定和种类鉴定。结果为:渔获物样本共有7种鱼,其中主要是鲦和鲫鱼;渔获物样本体长6.1~24.2 cm,平均值为9.4cm。渔获物样本有0+龄、1+龄、2+龄共3个年龄组,其中0+龄居多。

Analysis on catches composition of fishing on Luohe River

The catches of fishing from Luohe River were studied by measurement of the body length,age,and species in April,2009.The catches included seven species,and the main species were Hemiculter leucisculus and Carassius auratus.Their body length was from 6.1 cm to 24.2 cm at average of 9.7 cm.Their ages included 0+,1+ and 2+,and especially the catches of age 0+ were the most.