How to Handle and Release Fish Safely

Every fish you release has a life after you let it go — but only if it was handled properly. Poor fish handling causes post-release mortality that reduces the quality of fishing for everyone. The techniques in this guide are the standard practices used by tournament anglers, fishing guides, and fisheries biologists.

Why Proper Handling Matters

Fish are not simply wet and slippery — they are complex animals affected by stress, injury, and handling:

• Slime coat damage opens fish to bacterial and fungal infection that can be fatal days after release
• Oxygen depletion from fighting and air exposure temporarily reduces the fish’s ability to function
• Internal injury from improper grip (squeezing the body) can damage organs
• Temperature shock is a real risk when water temperature is extreme
• Scale loss creates wound sites prone to infection

Proper handling takes no extra time and dramatically improves survival rates.

General Handling Rules

Rule 1: Keep the Fish Wet

Water is the fish’s element. Every second in air is stressful. The target:

Practical rule: If you wouldn’t hold your breath for that long, neither should the fish.

Rule 2: Wet Your Hands First

Always dip your hands in the water before touching a fish you intend to release. Dry hands, sunscreen, and insect repellent all damage the protective slime coat more than wet hands. Do not use gloves unless they are specifically designed fish-handling gloves (rubberized).

Rule 3: Support the Fish’s Weight

Never hold a fish by the jaw alone when it is horizontal — this can dislocate or fracture the lower jaw from the weight of the body. Support the body with your other hand:

• Correct: Grip the lower jaw with one hand, support the belly with the other hand
• Incorrect: Hold a large bass horizontally by the lip alone without body support

Exception: Vertical jaw hold is acceptable for quick, close-range photos and is less stressful on the jaw than horizontal if done briefly.

Rule 4: Don’t Squeeze

The internal organs are protected by bones, but significant squeezing force can damage them. Hold firmly enough to control the fish — not so hard that your fingers compress the body cavity.

Gripping Techniques by Species

Bass (Largemouth, Smallmouth, Spotted)

Jaw grip (lipping): The standard bass-holding method. Grip the lower jaw firmly between your thumb and the inside of your first finger. This temporarily immobilizes the fish — bass cannot bite hard enough to cause injury. The jaw grip is safe when:

• The fish is held vertically or at a slight angle
• Body weight is supported if held horizontally

What to avoid: Twisting or bending the jaw sideways. Do not put excessive torque on the jaw — this stresses the joint and can cause permanent injury.

Trout

Two-hand belly cradle: Trout are extremely fragile. Keep them in the water as much as possible. If you must lift:

• Cup both hands under the belly
• Lift briefly and immediately return
• Never grip trout around the body — it injures internal organs
• Unhook with the fish held in shallow water, submerged

Kneeling in the water with your hands submerged is the preferred trout handling position for catch-and-release.

Panfish (Bluegill, Sunfish, Crappie, Perch)

Panfish can be lifted by the line for very small fish, or gripped lightly across the body for larger ones. The spiny dorsal fin is sharp — fold it down (push from back to front) before gripping. Keep handling brief and return to water quickly.

Catfish

Catfish have sharp pectoral and dorsal spines that can puncture skin and inject a mild venom causing significant pain. Handle by:

• Gripping behind the pectoral spines on both sides with the palm flat against the belly
• Or gripping just behind the dorsal fin with the spine between your fingers

Do not let a thrashing catfish spine you — keep the fish controlled and calm.

Pike and Muskie

Large, toothy predators. Never put fingers near the mouth without protection. Use:

• Jaw spreaders or large lip grip tool
• Long-handled forceps or unhooking tool for removing hooks
• Support long fish completely horizontally — their spine can be damaged by being held vertically

Unhooking Fish

Standard Hook Removal

For a shallowly hooked fish (hook visible, in the lip):

1. Hold the fish steady or keep it in the water
2. Grip the hook bend with needle-nose pliers
3. Back the hook out in the reverse direction it went in — no twisting or pulling forward
4. If the hook is a circle hook, rotate it rather than back it out

Deeply Hooked Fish

If the hook is swallowed or near the gills:

Do not attempt to remove it if:

• The hook is deep in the throat
• Removing it would damage the gills (which bleed heavily and are often fatal injuries)

Instead: Cut the line as close to the hook as possible. Single hooks without trebles dissolve in days to weeks through the fish’s digestive process (steel faster in saltwater, slower in freshwater). The fish has a much better chance of survival with a dissolved hook than it does from the injury of a forceful removal.

Barbless Hooks

Fishing with barbless hooks (or crimping the barb with pliers) makes hook removal nearly instantaneous — the fish barely needs to be lifted. Many trout anglers fish exclusively with barbless hooks. Release rates improve significantly.

Treble Hooks

Lures with treble hooks (crankbaits, topwater plugs) are the most difficult to unhook quickly. Options:

• Long-nose pliers to grip and back out each tine individually
• Degorger tool to rotate and pop the hook free
• Replace trebles with single hooks (where allowed) on lures used in catch-and-release fishing

Reviving Fish Before Release

After a long fight, a fish may be temporarily exhausted — oxygen-depleted muscles cause it to lose equilibrium. Signs a fish needs reviving:

• Rolls onto its side when held upright in the water
• Does not kick or swim when you open your hand
• Moves sluggishly with no orientation

Reviving technique:

1. Hold the fish upright in the water (not upside down), gently gripping across the body
2. If there is current, face the fish into it — current flowing over the gills provides oxygenated water passively
3. If no current: slowly and gently move the fish forward and back, generating flow over the gills
4. Do not move the fish sideways or in circles — forward-back motion is correct
5. Wait until the fish kicks strongly and swims out of your hands on its own
6. Do not force a premature release — a disoriented fish released early will often float belly-up and be eaten by predators

Reviving time: 30 seconds to several minutes depending on fight duration and water temperature.

Photographing Fish for Release

If you want a photo:

1. Have the camera ready before lifting the fish — this shortens air time dramatically
2. Wet your hands before touching the fish
3. Keep the fish at or near the water surface — close enough to dip it back quickly
4. Time yourself: Most good fish photos take under 10 seconds to capture. Set a maximum of one photo, and release.
5. Revive if needed before final release

Hot weather note: Water temperature above 75°F (24°C) significantly reduces fish survival after catch-and-release. Consider keeping fish in live well or bucket, or switching to harvest-based fishing in extreme heat.

Fish-Friendly Gear Choices

Small gear decisions make a significant difference in fish welfare:

Legal Considerations

Most states have regulations governing minimum size limits and catch limits for species. Always:

• Carry a tape measure or measuring board for any size-limited species
• Know the regulations for the water you are fishing before you fish it
• Release undersized fish immediately — every small fish you release grows into a larger fish in future seasons

Size limits exist because protecting juvenile fish ensures the long-term health of the fishery.

Related Guides

• How to Start Fishing for Beginners
• How to Fish a Bobber
• How to Fish from Shore
• Fishing Knots for Kids
• Best Fishing Knots for Beginners