Sharks and Rays in Thailand: Protection Status and ID

Sharks and rays are not typical recreational targets in Thailand — every reputable charter operator we have heard of treats them as accidental catches, never as targets. The Thai conservation framework, the CITES listings, and the cultural attitude all point the same way: sharks and rays are released, often with minimal handling and a cut leader, and the angler moves on.

This page covers what to do if you encounter sharks or rays as a visiting angler, the protection status of the species you are most likely to see, and the edge case of the giant freshwater stingray.

Quick answer — the rule

For a visiting recreational angler in Thailand, the practical rule is release every shark and ray you hook. Stop the fight as soon as you realise what is on the line; cut the leader as close to the hook eye as safely possible; let the fish go. No photo. No landing. No deck shot.

The reasons:

• Many Thai shark and ray species are protected at species level under Thai and international (CITES) frameworks.
• Even unprotected species are under enough commercial-fishing pressure that recreational removal is hard to justify.
• Mishandling a shark or ray is genuinely dangerous to the angler — both species have tails, teeth, or barbs that injure people every year.
• Reputable charter operators in Thailand will not assist with landing or keeping a shark or ray.

Sharks in Thai waters

The shark species a visiting angler is most likely to encounter, in approximate order of frequency:

Blacktip reef shark (Carcharhinus melanopterus) — Small (typically under 1.5 m), inshore, often visible in shallow water around reefs and lagoons. Not specifically CITES-listed but populations are declining. Cultural release-only norm.

Whitetip reef shark (Triaenodon obesus) — Small, reef-dwelling, often seen on dives. IUCN Vulnerable. Release-only.

Bull shark (Carcharhinus leucas) — Larger, can enter coastal estuaries and brackish water. Uncommon as an angler catch but possible in some river-mouth situations. Release-only.

Hammerhead species — Scalloped hammerhead is IUCN Critically Endangered and CITES II-listed. Other hammerheads are similarly protected. Encounters are rare but possible offshore in the Andaman. Cut line immediately.

Whale shark (Rhincodon typus) — CITES II, IUCN Endangered. Encountered occasionally on Andaman charters, especially near Phang Nga and the Similan zone. Not an angler target — feeders, not predators — but worth knowing. Reputable captains stop the boat to allow guests to view, then move on.

Other species — Various reef and pelagic species occur in low numbers. The default — release-only, no photo handling — applies to all.

Rays in Thai waters

Common stingrays of tourist beaches — typically small (under 1 m) bluespotted ribbontails and similar. Venomous (barbs cause painful but rarely fatal wounds). Not specifically protected but best left alone. If hooked accidentally, cut the line; do not attempt to handle.

Eagle rays — IUCN Vulnerable. Encountered occasionally on Andaman dives and from charters. Release-only.

Manta rays (Mobula alfredi, Mobula birostris) — CITES II, IUCN Vulnerable to Endangered depending on species. Encountered seasonally around the Similan and Surin zones. Never targeted; release-only on accidental hook-ups.

Devil rays (Mobula spp.) — CITES II. Release-only.

The giant freshwater stingray — separate section below.

The giant freshwater stingray edge case

The giant freshwater stingray (Urogymnus polylepis) is the largest freshwater fish in the world, reaching documented sizes over 4 metres disc-width and weights over 600 kg. It occurs in the Maeklong, Chao Phraya, and (historically) Mekong river systems. It is IUCN Critically Endangered and protected under the Thai conservation framework.

A visiting recreational angler is unlikely to target this species — the realistic encounter is an accidental catch when bottom-fishing in the Maeklong or Chao Phraya. A few specialist guides on the Maeklong work with the species under research-cooperation arrangements. For visiting anglers, the relevant guidance:

• If you hook one accidentally: Stop the fight immediately. The fight on light tackle will exhaust the fish before you can safely release it. Cut the leader as close to the hook eye as possible.
• If a Thai guide knowingly targets one for a paying client without research authorisation: This is not a reputable operation. The species' status and Thai conservation framework both point against it.
• Reputable Maeklong specialist guides working under research arrangements use specific gear, specific handling protocols, and prioritise quick in-water release.

What to do if you hook a shark or ray

The actual mechanics matter:

1. Recognise it. A shark or ray takes line very differently from a typical predator. A heavy, low, side-to-side pull at depth is often a ray. A series of fast runs interrupted by sudden direction changes is often a shark. The captain will usually know within a few seconds of the strike.

2. Stop fighting. Lock the drag, raise the rod tip, but stop pumping or moving the fish. Every minute of fight reduces survival.

3. Cut the leader. Get the leader as close to the hook eye as you can safely manage — within 10-15 cm. Use line scissors or pliers; do not bring a tightly-loaded line near your face. Modern saltwater hooks corrode within days to weeks.

4. Do not land. No lifting the fish onto the boat. No deck shot. No "let me get a quick photo." The release is in the water.

5. Inform the captain. Most reputable Thai charters log shark and ray encounters informally. Some report to local research programmes.

6. Move zones. If sharks are working an area, the rest of the day's fishing there is unlikely to be productive. Talk to the captain about repositioning.

Identification basics

A visiting angler doesn't need to identify the exact species to release correctly — release is the answer regardless. But for after-the-fact curiosity:

• Reef sharks — Small (under 2 m), with distinctive black or white tips on the dorsal and tail fins. Inshore, around reefs.
• Hammerheads — Unmistakable T-shaped head. Don't confuse them with the rare-but-similar bonnethead.
• Bull sharks — Stocky, with a blunt snout, found in turbid coastal and estuarine waters.
• Stingrays — Disc-shaped body with a whip-like tail. Bluespotted ribbontails are small with characteristic blue spots.
• Mantas and devil rays — Diamond-shaped, with cephalic fins on either side of the mouth. Mantas are larger; devil rays are smaller and have a more triangular shape.

Reef-fish ID resources are widely available online — the Wikipedia entry for sharks of Thailand is a reasonable starting point.

What to do after the trip

If your charter trip involved a shark or ray encounter:

• Talk to the captain about how it was handled. A captain who released cleanly is one to recommend; a captain who tried to land or pose with the fish is one to flag.
• Consider reporting unusual sightings. Whale shark, manta, and large protected-species sightings are valuable to research programmes. Local dive operators and marine biology centres often welcome the data.
• Don't post photos of landed sharks or rays. Even unprotected species — a tourist holding a small reef shark on a boat deck makes the angling community look bad and contributes to demand for shark-targeting trips.

Related

• Protected and endangered species in Thailand — full list
• Catch and release — handling technique for any species
• Marine national parks — many are sanctuaries for sharks and rays
• Foreign angler rules — overall framing
• Charter checklist tool — includes "what happens if we accidentally hook a protected species" as a pre-deposit question