Channel Catfish Ictalurus punctatus were collected during 2018 and 2019 from the Monongahela River in West Virginia using hoop nets to estimate population dynamics. Length, weight, sex, fecundity, and age data were obtained from collected individuals. Population characteristics (e.g., relative abundance, size structure, age structure, growth, etc.) were modeled under three proposed length limits of 300, 375, and 450 mm. Simulation results indicated that growth overfishing may occur when exploitation rates reach 36% under a 300-mm minimum length limit. Furthermore, recruitment overfishing began to occur at 40% exploitation under a 300-mm minimum length limit. Additionally, simulations suggest that no recruitment or growth overfishing occur at minimum length limits of 375 mm or 450 mm until extremely high exploitation levels (>90%) are reached. Thus, future consideration should be given for implementation of a 375-mm minimum length limit of Channel Catfish in the Monongahela River to prevent growth and recruitment overfishing while also ensuring anglers are still able to harvest Channel Catfish.

中文翻译：

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使用种群动态模型对西弗吉尼亚州莫农加希拉河中Channel鱼的捕捞法规影响进行建模

槽Cat鱼Ictalurus punctatus这些数据是在2018年和2019年从西弗吉尼亚州的莫农加希拉河收集的，使用环网估计了人口动态。长度，体重，性别，生殖力和年龄数据是从收集的个体中获得的。人口特征（例如相对丰度，大小结构，年龄结构，生长状况等）在三个建议的长度限制（300、375和450毫米）下建模。模拟结果表明，如果在300毫米的最小长度限制下开采率达到36％，可能会出现过度捕捞的情况。此外，在300mm的最小长度限制下，以40％的开采率开始招募过度捕捞。此外，模拟表明，在达到375毫米或450毫米的最小长度限制之前，不会出现招募或过度捕捞的情况，直到达到极高的利用水平（> 90％）为止。因此，