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A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris and snags, and the bottom of a body of water. Fishfinder instruments are used both by recreational and commercial fishermen, as well as by marine biologists.
Operation of Deeper is based on echolocation and wi-fi technologies. Echolocation is a method for detecting and locating objects submerged in water. When a sound signal is produced, the time it takes for the signal to reach an object and for its echo to return is issued to calculate the distance between the sonar and the object.
Fish finder may refer to: Fishfinder , a sonar device attached to a boat, used to measure the amount of fish at various depths underneath the boat Fish identifier, an identification key used in fishing to identify the species of a caught fish
Electrofishing relies on two electrodes which deliver direct current at high-voltage from the anode to the cathode through the water. [2] When a fish encounters a large enough potential gradient on this path, it becomes affected by the electricity.
There is a two-way interplay between human attitudes, beliefs, and symbols concerning fish, such as in Christianity, and people's practical use of and dependency on fish: "Fish not only guarantee the necessities of human life as food for the world, but they also establish human and fish relationships that link social, cultural, traditional, and ...
Drone fishing - Rod fishing assisted by a drone, the drone can be a flying type or underwater type, it can be remote controlled by a human, computer, AI or a combination of the three simultaneously. The drone is used to scout for fish via camera, carry the hook to a far off location, cast the hook, reel in the fish and return.
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Details of the human use of fish as food can be found in the fish as food category Fish kept by aquarists. Most fish that aquarists are likely to have kept or seen are in Actinopterygii, the ray-finned fish. Further information on about fishkeeping can be found in the fishkeeping category, and Aquarium article.