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  2. Copper alloys in aquaculture - Wikipedia

    en.wikipedia.org/wiki/Copper_alloys_in_aquaculture

    [24] [25] This translates, for example, to two thousand pounds of unwanted organisms adhered to what was once a clean 10-pound fish pen net. In South Australia, biofouling weighing 6.5 tonnes (approximately 13,000 pounds) was observed on a fish pen net. [26] This extra burden often results in net breakage and additional maintenance costs.

  3. Fishing net - Wikipedia

    en.wikipedia.org/wiki/Fishing_net

    The oldest known fishing net is the net of Antrea, found with other fishing equipment in the Karelian town of Antrea, Finland, in 1913. The net was made from willow, and dates back to 8300 BC. [1] Recently, fishing net sinkers from 27,000 BC were discovered in Korea, making them the oldest fishing implements discovered, to date, in the world. [2]

  4. Glass float - Wikipedia

    en.wikipedia.org/wiki/Glass_float

    A Japanese glass fishing float. Glass floats were 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.

  5. In WA’s northern waters, Lummi keep sustainable, ancient ...

    www.aol.com/wa-northern-waters-lummi-keep...

    Fish trappers continued to overharvest for decades until, in the name of conservation, Washington state officially outlawed all fish traps in 1934, including reef nets.

  6. Fish trap - Wikipedia

    en.wikipedia.org/wiki/Fish_trap

    Traditional fish traps, Hà Tây, Vietnam. Cage trap at Lembeh Strait, Indonesia. A fish trap is a trap used for catching fish and other aquatic animals of value. Fish traps include fishing weirs, cage traps, fish wheels and some fishing net rigs such as fyke nets.

  7. Gillnetting - Wikipedia

    en.wikipedia.org/wiki/Gillnetting

    Net haulers are usually used to set and haul driftnets, with a drifter capstan on the forepart of the vessel. In developing countries most nets are hauled by hand. The mesh size of the gillnets is very effective at selecting or regulating the size of fish caught. The drift net has a low fuel/fish energy consumption compared to other fishing gear.

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