fish-finder

Encyclopedia

fish-finder

in commercial fishing, high-frequency sonar device for locating schools of fish. It transmits sound waves downward and receives echoes from the bottom of the sea, or from intervening schools of fish, also indicating distance from ship to fish. Two different types are used, one of which is a simple "echo sounder" that points directly downward from the ship and indicates the depth of the water as well as the presence of fish. More complex sonars or scanners send signals in all directions, covering a much wider area and providing more extensive information about the location of schools of fish

Learn more about fish-finder with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Explore Dictionary.com
Previous Definition: fish-farm
Next Definition: fish-flake
Words Near: fish-finder
More from Thesaurus.com
Synonyms and Antonyms for fish-finder
More from Reference.com
Search for articles containing fish-finder
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature