Relation of Male Bluegill Reproductive Strategies to Exploitation and PopulationSize Structure in Twelve Minnesota Lakes

摘要

No conclusive relationship between the proportion of parental male bluegill andrate of exploitation was established in this study. High proportions of cuckolder males were sampled from two lakes with high fishing pressure (greater than 200 angler-hours/hectare). In contrast, relatively low proportion of cuckolder males were also sampled from lakes with less than 200 angler-hours/hectare fishing pressure. A valuable result of this study was the development of techniques for studying male bluegill reproductive strategies and insights into the difficulties of doing a study of this type.