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Fishfinder. Fathometer sonar. A fishfinder or sounder (Australia) is an instrument used to locate fish underwater by detecting reflected pulses of sound energy, as in sonar. A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater ...
Website. navico.com. Navico is a marine electronics company providing navigation, marine instruments and fish finding equipment to both the recreational and commercial marine sectors. The Navico Recreational Marine Division is one of the world's largest provider of leisure marine electronic products. Lowrance is aimed at fishing, particularly ...
Furuno Electric Shokai was founded in Nagasaki, Japan in 1948. The same year, Furuno commercialized the world's first practical fish finder.Manufacturing continued to ramp up as the decade came to a close, and by the mid-1950s, Furuno was producing various Marine supplements, such as early examples of commercial Marine radars.
The F/V Northwestern, a western rigged boat, was constructed in 1977 at Marco Shipyards in Seattle, Washington for the sole purpose of fishing King and Tanner Crab off of the coast of Alaska. [1] It was christened F/V Northwestern on 1977 November 5 by Snefryd Hansen, the wife of then-owner and captain Sverre Hansen. [2]
Sonar (sound navigation and ranging or sonic navigation and ranging) [ 2 ] is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. [ 3 ]
A Japanese glass fishing float. Glass floats were once used by fishermen in many parts of the world to keep their fishing nets, as well as longlines or droplines, afloat.. Large groups of fishnets strung together, sometimes 50 miles (80 km) long, were set adrift in the ocean and supported near the surface by hollow glass balls or cylinders containing air to give them buoyancy.
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