Catch & release, done right.
Releasing a fish only helps if it swims off and survives. Done carelessly, catch and release still kills. These are the simple habits that give a released fish the best possible chance - and the honest cases where releasing is not the right call.
🎣 The golden rule: keep it wet, keep it quick, and support it. Most release deaths come down to too long in the air, dry hands, or a deep hook dug at instead of cut.
🤲 Handling: wet hands, low and quick
- Wet your hands before touching a fish - dry hands and cloths strip the slime coat that protects it from infection.
- Support the fish horizontally with two hands; never hold a big fish vertically by the jaw alone, which can damage its spine and organs.
- Keep fingers out of the gills and away from the eyes. The gills are delicate and bleeding from them is often fatal.
- Minimise air time. A fish out of water is holding its breath - aim for seconds, not minutes.
- Do the unhooking over the water or over a wet mat, so a dropped fish lands safely.
🪝 Getting the hook out
- Use forceps or long-nose pliers to back the hook out the way it went in. Barbless hooks or pinched-down barbs make this far quicker and kinder.
- For a lightly hooked fish in the lip, a smooth twist and push usually frees it in seconds.
- If the fish is hooked deep in the throat or gut, do not dig for the hook. Cut the line as close to the hook as you can and leave it - many hooks rust out or are shed, and the fish stands a far better chance than if you tear at it.
- Keep the tools on a lanyard so they are always to hand and the fish is not left waiting.
💧 Reviving a tired fish
- A fish played hard is exhausted and low on oxygen. Do not just drop it back and hope.
- Hold it upright, facing into gentle current or moving water, so water flows over its gills. In still water, move it slowly forwards - never back and forth.
- Wait until it grips the water and kicks against your hand with real strength.
- Let it swim off under its own power. If it rolls or floats, it is not ready - keep supporting it.
- Warm water holds less oxygen, so in summer keep fights short and revival longer.
🎈 Deep water: barotrauma and descending devices
- Fish reeled up quickly from deep water (roughly 10 m / 30 ft and beyond) can suffer barotrauma - the gas in their swim bladder expands, showing as bulging eyes, a bloated belly or the stomach pushed into the mouth. That stomach is NOT to be pushed back in by hand.
- A floating, bloated fish thrown back will die on the surface. The fix is getting it back to depth quickly: a descending device - a weighted lip-clamp or an inverted weighted hook that releases at depth - recompresses the fish and dramatically improves survival.
- Venting (puncturing the gas with a needle tool) is an older technique that works in trained hands but is easy to do wrong; where a descending device is an option, it is the kinder and simpler tool. Some saltwater fisheries now require carrying one - check your local rules.
- Better still, prevent it: when fish are stacked deep and must be released, consider fishing shallower rather than repeatedly lifting fish through the pressure change.
- For deep-hooked fish in deep water, combine the rules: cut the line close, then descend the fish - speed matters more than tidiness.
📷 Photos without harm
- Have the camera ready and the shot planned before the fish comes out, so it is a two-second lift, not a two-minute session.
- Hold the fish low and over the water or net, so a wriggle drops it back safely.
- One or two frames is plenty. Then get it back and revive it properly.
⚖️ When not to release
- Release is the right default for most sport fishing, but it is not always the right or legal call.
- A fish bleeding heavily from the gills or throat is unlikely to survive; where it is legal to keep, dispatching it quickly and using it is the ethical choice.
- Follow the local rules: size and slot limits, bag limits and closed seasons exist to protect stocks, and a fish inside a harvest slot may be one you are meant to take.
- Never return an invasive or non-native species to the water where the law says otherwise - dispatch it humanely instead.
- If you do keep a fish, dispatch it promptly and humanely rather than letting it suffocate.
🎒 Fish-friendly kit checklist
- Barbless hooks or barbs pinched down
- Forceps or long-nose pliers on a lanyard
- A knotless, rubberised landing net
- A wet unhooking mat for bigger fish
- Wet hands before every touch
- The local size, slot and bag limits checked
New to all this? Start with the path to your first fish, brush up your knots, and time your trip with the seasonal guide. Taking a child? See the family fishing guide. Handling fish gently is part of being an angler worth the name.