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2. Fishfinder - Wikipedia

   en.wikipedia.org/wiki/Fishfinder

   Fathometer sonar. A fishfinder or sounder (Australia) is an instrument used to locate fish underwater by detecting reflected pulses of sound energy, as in sonar.A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris, and the bottom of a body of water.

3. Deeper Fishfinder - Wikipedia

   en.wikipedia.org/wiki/Deeper_Fishfinder

   Deeper Fishfinder. Deeper Smart Sonar is a wireless, castable echo-sounder compatible with iOS and Android smartphones and tablets. Wi-Fi connection enabled to maximize both the distance between the sounder and the device holder up to 330 ft / 100 m and the depth range up to 260 ft / 80 m. The scanning frequency allows the device to capture ...

4. Fisheries acoustics - Wikipedia

   en.wikipedia.org/wiki/Fisheries_acoustics

   Fisheries acoustics. Fishfinder sonar. Fisheries acoustics includes a range of research and practical application topics using acoustical devices as sensors in aquatic environments. Acoustical techniques can be applied to sensing aquatic animals, zooplankton, and physical and biological habitat characteristics.

5. Humminbird Fishfinder 500K - Wikipedia

   en.wikipedia.org/?title=Humminbird_Fishfinder...

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Humminbird_Fishfinder_500K&oldid=1236851872"

6. Marine mammals and sonar - Wikipedia

   en.wikipedia.org/wiki/Marine_mammals_and_sonar

   The interactions between marine mammals and sonar have been a subject of debate since the invention of the technology. Active sonar, the transmission equipment used on some ships to assist with submarine detection, is detrimental to the health and livelihood of some marine animals. [1] Research has recently shown that beaked and blue whales are ...

7. Depth finder - Wikipedia

   en.wikipedia.org/wiki/Depth_finder

   Depth finder. A depth finder may refer to any of the following: Sonar: use of underwater sound propagation to measure depth. Fathometer or fishfinder: a device to locate fish at various water depths. Echo sounding: a technique using sound pulses to measure depth. sounding line: a length of rope used to measure water depth. Category: