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  2. Fishing light attractor - Wikipedia

    en.wikipedia.org/wiki/Fishing_light_attractor

    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.

  3. Electrofishing - Wikipedia

    en.wikipedia.org/wiki/Electrofishing

    Electrofishing is a fishing technique that uses direct current electricity flowing between a submerged cathode and anode. This affects the movements of nearby fish so that they swim toward the anode, where they can be caught or stunned .

  4. Bathysphere - Wikipedia

    en.wikipedia.org/wiki/Bathysphere

    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.

  5. Johnson Sea Link accident - Wikipedia

    en.wikipedia.org/wiki/Johnson_Sea_Link_accident

    The Johnson Sea Link was the successor to Edwin Link's previous submersible, Deep Diver, the first small submersible designed for lockout diving.In 1968 the Bureau of Ships determined that Deep Diver was unsafe for use at great depths or in extremely cold temperatures because of the substitution of the wrong kind of steel, which became brittle in cold water, in some parts of the submersible. [6]

  6. Lampara net - Wikipedia

    en.wikipedia.org/wiki/Lampara_net

    Fishing with a lampara net. A lampara net is a type of fishing net. It is a surrounding net having the shape of a spoon or a dustpan with a short leadline under a longer floatline. The net has a central bunt to contain the fish and two lateral wings. [1] Lampara nets are used for capturing pelagic fish, those swimming near the water's surface.

  7. DSV Alvin - Wikipedia

    en.wikipedia.org/wiki/DSV_Alvin

    The submersible features two robotic arms and can be fitted with mission-specific sampling and experimental gear. The plug hatch of the vessel is 0.48 m (1 ft 7 in) in diameter and somewhat thicker than the 2-inch (51 mm) thick titanium sphere pressure hull; [ 2 ] it is held in place by the pressure of the water above it.

  8. Remotely operated underwater vehicle - Wikipedia

    en.wikipedia.org/wiki/Remotely_operated...

    ROV at work in an underwater oil and gas field. The ROV is using a torque wrench to adjust a valve on a subsea structure.. A remotely operated underwater vehicle (ROUV) [1] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation, inspection and physical tasks such as valve operations, hydraulic functions and other general tasks within the ...

  9. Johnson Outdoors - Wikipedia

    en.wikipedia.org/wiki/Johnson_Outdoors

    From 1980, JWA imported Swedish-made compasses manufactured by Silva Production AB (Silva Group) for sale in North America. In 1996, a decision by Silva Production AB of the Silva Group parent to begin marketing its Swedish-made Silva brand compasses via a new distribution network in North America with Brunton, Inc. led to litigation the following year between JWA, which owned the North ...

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