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2. DSV Alvin - Wikipedia

   en.wikipedia.org/wiki/DSV_Alvin

   6,500 m (21,300 ft) Capacity. 680 kg (1,500 lb) payload. Crew. 3 (1 pilot, 2 scientific observers) Alvin (DSV-2) is a crewed deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution (WHOI) of Woods Hole, Massachusetts. The original vehicle was built by General Mills ' Electronics ...

3. Deepsea Challenger - Wikipedia

   en.wikipedia.org/wiki/Deepsea_Challenger

   Deepsea Challenger (DCV 1) is 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.

4. Submersible - Wikipedia

   en.wikipedia.org/wiki/Submersible

   Retired modern submersible Star III of Scripps Institution of Oceanography. A submersible is an underwater vehicle which needs to be transported and supported by a larger watercraft or platform. This distinguishes submersibles from submarines, which are self-supporting and capable of prolonged independent operation at sea.

5. Fishing light attractor - Wikipedia

   en.wikipedia.org/wiki/Fishing_light_attractor

   A fishing light attractor is a fishing aid that uses lights attached to structures above water or suspended underwater to attract fish and members of their food chain. Fish are typically most attracted to true-green light colors. [1] Light attractors work by taking advantage of phototactic behavior exhibited by many species of fish that are ...

6. Deep-submergence vehicle - Wikipedia

   en.wikipedia.org/wiki/Deep-submergence_vehicle

   Historical deep-submergence vehicles. A deep-submergence vehicle (DSV) is a deep-diving crewed submersible that is self-propelled. [citation needed] Several navies operate vehicles that can be accurately described as DSVs. DSVs are commonly divided into two types: research DSVs, which are used for exploration and surveying, and DSRVs (deep ...

7. 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) [citation needed] 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 ...