Dr. Courtney's PF Insights post discusses the implications of fish stocking on genetics, particularly in trout populations. Participants in the discussion express concerns about how continuous re-stocking may alter gene pools and affect existing populations, particularly in New Mexico and Colorado. They note that heavy stocking could confound research findings, although some studies from British Columbia show similar competition results in lakes without regular re-stocking. The conversation highlights the belief that evolution can help maintain genetic diversity if human interference is limited, but emphasizes that habitat destruction and overharvesting pose significant threats to fish populations. The discussion also touches on the importance of maintaining healthy ecosystems to support sustainable fisheries.
