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IEVref:801-32-39ID:
Language:enStatus: Standard
Term: fisheries echo sounder
Synonym1: fish-finder
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Definition: echo sounder designed for use in fisheries

Note 1 to entry: Automatic gain control (AGC) and other nonlinear processing is often employed to enhance images of water-column scatterers such as fish.

Note 2 to entry: The output signal of fisheries echo sounders is generally non-quantitative except for measurement of bathymetry, and hence cannot be used for scientific purposes without altering the device.

Note 3 to entry: Fisheries echo sounders are sometimes used for navigation.


Publication date:2021-02
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