Way 1: Handle with Care
The final tip for responsible fishing deals with what you actually catch. If you're playing for keeps, remember to limit your catch only to the fish you will actually use. Ideally, only hold onto the small or medium-sized ones so the more mature fish can spawn again and replenish the population.
If you're interested in catching and releasing, do the fish a favor and handle them as gently as possible. Use barbless hooks to minimize damage, hold the fish as little as possible, avoid touching their gills and removing protective slime, and reel them in and return them to the water quickly (to avoid exhausting them). If you hook a fish deeply, don't risk unnecessary harm by trying to get it out -- simply clip the line and let the fish go.
By following each of the five tips in this article, you'll not only help the environment, but you'll also ensure good fishing grounds for years to come.