黄壁庄水库黄颡鱼生长特征与资源量评估

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中图分类号：S932.4 文献标志码：A 文章编号：1004—6755（2025）12-0024—04

Abstract：To understand the current status of the Pelteobagrus fuluidraco population resources in Huangbizhuang Reservoir，this study analysed its growth characteristics and resource quantity based on the 2024 reservoir fishery resource survey data. The findings indicate that the length一weight relationship equation for Pelteobagrus fuluidraco in Huangbizhuang Reservoir is Wt=0 .0003 Lt 2.439 6 0 R2=0.926 9，n=150） ；the length growth equation is Lt=204.75[1-e-0.46（t+0.35）] ；the weight growth equation is Wt=144.27[1-e-0.46（t+0.35）]2.4396 ； the inflection age is 1.6a ； the critical age is 2.7a ； the total mortality coefficient is O.65；the natural mortality coefficient is 0.446 4 ；the fishing mortality coeficient is 0. 203 6 ；the exploitation rate is O.3l；the number of resources is 1. 458 8 milion;and the steady-state biomass is 263.81 tonnes. The Pelteobagrus fuloidraco resources are not overexploited，and the population status is favourable.

Key words： Pelteobagrus fuluidraco; Huangbizhuang Reservoir;growth characteristics;resource assessment

黄颡鱼（Pelteobagrusfuluidraco）隶属于鲇形目（Siluriformes）科（Bagridae）黄颡鱼属（Pelteobagrus），是淡水底栖肉食性鱼类，广泛分布于河北省各水系。（剩余4503字）