Study reveals catch-and-release fishing practices increase salmon mortality rates

A new study from the University of British Columbia reveals that catch-and-release fishing practices can lead to higher salmon mortality than previously thought. Injuries, especially to the eyes, can increase chinook salmon mortality rates by up to 40%. The research suggests that changing angling practices could improve salmon survival. Recommendations include using smaller hooks, avoiding landing nets, and minimizing fish handling. The study found that smaller fish are more vulnerable, with each centimeter decrease in length linked to a six percent increase in mortality. The study also highlights the impact of warmer water temperatures on salmon survival. Researchers advise anglers to avoid catch-and-release fishing when water temperatures exceed 18 degrees Celsius to reduce stress on the fish.