Fish Counter - Alternative Methods

Alternative Methods

The results of automatic fish counters can be supplemented, confirmed, or replaced by a number of alternative techniques, varying in accuracy, cost, complexity, and skew effects.

  • Electrofishing
  • Traps
  • Net and rod counts
  • Redd counts (disturbances in gravel caused by mating activities of some fish)
  • Closed circuit television

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Famous quotes containing the words alternative and/or methods:

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