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Baited remote underwater video – Equipment for estimating fish populations; Sometimes more than one type of observations are combined in a survey. For example, the Reef Life Survey procedure includes three components along the same transect: Visual count of fish, visual count of benthic fauna, and photographs of the bottom at regular ...
A survey vessel is any type of ship or boat that is used for underwater surveys, usually to collect data for mapping or planning underwater construction or mineral extraction. It is a type of research vessel , and may be designed for the purpose, modified for the purpose or temporarily put into the service as a vessel of opportunity , and may ...
A towboard is a piece of aquatic survey equipment consisting of a board attached to a rope that is towed by a surface vessel. It is used to tow one or more divers underwater at a constant depth to survey bottom features such as coral reefs.
The baseline stations are first deployed in the corners of a work site. Their relative position is then precisely measured using the AquaMap system's automatic acoustic self-survey capability. For geo-referenced operations, the baseline positions are surveyed by differential GPS or a laser positioning equipment (total station).
Equipment can be installed on inflatable craft, such as Zodiacs, small craft, autonomous underwater vehicles (AUVs), unmanned underwater vehicles (UUVs), Remote Operated Vehicles (ROV) or large ships, and can include sidescan, single-beam and multibeam equipment. [33]
According to the definition. this does not necessarily require the explorer to be present at the point of investigation, so exploration of the underwater environment by remotely operated equipment, remote measurement, and autonomous devices programmed to explore the underwater environment is included. Surveys of the underwater environment ...
In practice, hydrographic survey vessels are often equipped to perform multiple roles. Some function also as oceanographic research ships. Naval hydrographic survey vessels often do naval research, for example, on submarine detection. An example of a hydrographic survey vessel is CCGS Frederick G. Creed.
The AN/BLQ-11 autonomous unmanned undersea vehicle (formerly the Long-Term Mine Reconnaissance System (LMRS)) is a torpedo tube-launched and tube-recovered underwater search and survey unmanned undersea vehicle (UUV) capable of performing autonomous minefield reconnaissance as much as [1] 200 kilometers (120 mi) in advance of a host Los Angeles-, Seawolf-, or Virginia-class [2] submarine.