Shark fishing is limited by fishing gear and vehicles. Shark fishing in China is limited to the professional sea fishing of islanders and fishermen. Leisure fishing sharks are more common among ocean-going crew members, and most of them catch warm-water sharks in the upper waters during shipping.
Generally, benthic sharks that are active in offshore waters do not move in groups, and some of them are mild because they are small and harmless to people. Most sharks are caught by boat, and sharks can also be caught in fishing activities that are not mainly aimed at sharks. The benthic sharks caught in the northern and southern waters of China are usually in the clear and clean waters with a water depth of 20 ~ 30 meters, the periphery of the rocks and fast-flowing water. At the high tide stage, when the fish are used to biting, they suddenly don't bite, indicating that there may be sharks in this sea area, because those alert small fish hide in the gap of the reef and don't come out to feed, so there is no fish biting. Mackerel (green? ) Black snapper and sea eel are often used as bait to catch sharks. Mackerel is a small fish in the upper and middle layers, which can form a fish array all over the upper, middle and lower water surfaces when it is in a large cluster. When the shark appears at the bottom, the mackerel in the lower waters scatter and the mackerel in the upper waters disappear without a trace. This sudden change in fish information is a sign of the arrival of sharks.
Sharks are very powerful, and there is no powerful fishing rod to compete with them at present, so when fishing sharks, we often use hand lines to fish. The specific method is: 200-meter-long 10 fishing line (or line diameter 1.2 mm) is wound on a wooden reel or winch, and fixed firmly to form arbitrary pay-off. The fisherman put the fishing line in the second bend of his thumb and forefinger with one hand and pulled the fishing line rhythmically with the ups and downs of the ship. When a shark bites a hook, it feels very strong, which is manifested by continuous strong shaking and sudden pulling. At this time, it is necessary to loosen the line in time, and then you can see that the fishing line will slip out soon. A shark caught by a hook is in no hurry to escape. It often stops when the fishing line slips out less than 100 meters, and the fishing line is slack and drooping. This is a good time to close the line. It is best to take advantage of the situation that the boat follows the fish while walking. When fishing sharks, two people must cooperate, otherwise it is easy to run away and it is very dangerous. When the line is drawn until the fish is faintly visible, the assistant should prepare the harpoon and wait for an opportunity to fish.
The shark's fishing tackle is relatively simple, but the fishing sinker is heavier. This is because the fishing point is on the periphery of the rock or in the tide, so fishing should not only avoid hooking the hook in the crack of the rock, but also stabilize the bait. A fishing group can be formed by feeding and hanging bait with Libra. The so-called "Libra" is a connector made of steel wire, which can protect the bus for fish with huge mouth and sharp teeth. The outward inclined part is used to connect the auxiliary line and the shackle. After the bus is connected, the steel wire can avoid sticking to the reef because of its elasticity.
There are many kinds of sharks, and the method of catching small benthic sharks is not necessarily suitable for catching other kinds of sharks.