Thresher Shark(Alopias vulpinus)
Quick Facts
- Other Names: fox shark
- Size Range: up to 20-feet and 1,000-pounds
- Native Species?: Yes
- Food Value: Excellent eating
Unlike many sharks, the thresher shark is easy to ID because of the extremely long extension of the upper part of its tail. This part of the tail can be almost as long as the body of the shark and is used to stun prey in a whipping motion. Once stunned, the shark circles back and eats it. The thresher has a gray back and sides with a white belly. A short snout and relatively small mouth give the shark a stocky build for its length.
The thresher can be found worldwide in coastal waters as well as offshore. It is most common in temperate waters where it feeds on bony fish as the majority of its diet.
Not to be confused with the bigeye thresher ,Alopias supercilious, that has a much larger oval shaped eye and a v-shaped ridge on the head. The bigeye thresher is prohibited to harvest.
Thresher Shark Rules and Regulations
| Size Limit : | 54” min fork length |
| Bag and Possession Limit : | 1 daily per person - possession |
| Special Rules : | All Louisiana state waters seaward to the gulf- ward boundary of the Louisiana Territorial Sea shall be closed to the recreational and com- mercial harvest and possession of all sharks between April 1 and June 30 of each year. Big eyed thresher sharks are protected. |
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Related Fishing Methods
Bottom Fishing
Bottom fishing is normally about fishing bottom structures in order to target benthic or bottom dwelling fish. There are a wide variety of techniques, but the common element is the targeting of species who dwell around or hide in natural and man-made structures. Fish like grouper, snapper, amberjack and catfish would be considered bottom fish. It is very popular amongst anglers and success is often determined by the fishermen's ability to crank a fish away from the structure before the fish can duck into it and cut the line. Anchoring or drifting the boat over the structure is key to having success. There are many versions, and many of the bottom fish are prized eating.
Chunking
The use of chunks of cut bait, usually fish, to attract game fish to the boat. The hook is then placed in one of the chunks and tossed out to free-line down. Also could be considered chumming, but the size of the pieces are bigger and gives the fish something to start feeding on.
Dead Bait
Dead bait consists of many different types of bait that is no longer alive. Dead bait is still attractive to many fish as they are normally feeding by smell and dead bait is the ticket for smell. Fresh cut fish, dead shrimp, half crab, shucked clam, cut squid and all popular examples of bait that will catch a wide variety of fish. Many sport fish that are predators, will gladly take the opportunity to slurp up a fresh dead bait. A redfish is equally happy to chase down a baitfish or slurp up a dead shrimp on the bottom. Dead bait has the benefit is being easy to obtain, maintain and transport, as opposed to live bait which takes livewells, quality water control and can be harder to obtain.
Drift Fishing
Drift fishing can encompass a variety of fishing methods. Bottom fishing over structure is often done while drifting. Timing the drop of your baits as you pass by the structures below is the trick. Also knowing when you have drifted beyond the fish is a key element to being succesful. Anglers also drift while live bait fishing and chunking for bluewater pelagic fish like tuna. The use of live bait or chunks is a slower presentation where the fish are drawn to the boat by smell or vibration of live fish. Inshore you can drift along while casting for trout and redfish with baits or lures. One of the main benefits of drift fishing is that you can quietly cover ground while searching for feeding fish.
Live Bait
Live bait is a term given to many different types of fish, crustaceans, insects and worms that are popular food items for fish and used by fishermen for bait. There are many benefits to live bait as well as a few cons. The pros normally out weigh the negatives, and live bait is widely used. The biggest benefit for fishermen is that they are using the real thing and often puts a fish's guard down. Small fish, crabs, shrimp, clams, crickets and the good ole earthworm are all used to entice a fish to the hook. The only negatives to live bait is just that, keeping it alive. Sometimes catching it can be a challenge, as only some species can be bought as live bait. No matter how you get it, live bait is a great way to target many types of fish.