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A fishing light attractor is a fishing aid that uses lights attached to a structure above water or suspended underwater to attract fish and members of their food chain. Fish are most attracted to true-green light colors, and LEDs do the best job of illuminating this color.
They are harvested using handline fishing, surface trolling, or small-scale purse seining. They are traditionally used to catch pelagic fish (like tuna, mackerel scad, and kawakawa). Payaos can produce catches of up to 200 metric tons of fish. There are thousands of payao anchored in dense networks throughout the Philippines.
Deepsea Challenger (DCV 1) was a 7.3-metre (24 ft) deep-diving submersible designed to reach the bottom of the Challenger Deep, the deepest-known point on Earth.On 26 March 2012, Canadian film director James Cameron piloted the craft to accomplish this goal in the second crewed dive reaching the Challenger Deep.
Restrictions on gear can include regulations on fishing net mesh size, fish hook size, fishing light attractor strength, and bans on fishing methods like trawling. [5] Fishing with explosives, poison, muro-ami nets, and flammable substances to scare fish is banned nationally. There are minimum mesh sizes for different species, ranging from 1.9 ...
The Bathysphere on display at the National Geographic museum in 2009. The Bathysphere (from Ancient Greek βαθύς (bathús) 'deep' and σφαῖρα (sphaîra) 'sphere') was a unique spherical deep-sea submersible which was unpowered and lowered into the ocean on a cable, and was used to conduct a series of dives off the coast of Bermuda from 1930 to 1934.
Edokko-1 (江戸っ子1号 Edokko Ichigo) is a Japanese small-sized unmanned submersible developed by Edokko-1 Project Committee in 2013. On November 22, 2013, the submersible dove to a depth of 7,800 meters in the Japan Trench and captured images of deep-sea fish using a 3D full hi-vision video camera. [1]
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