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・ Fish or cut bait
・ Fish out of water
・ Fish Out of Water (Charles Lloyd album)
・ Fish Out of Water (Chris Squire album)
・ Fish Out of Water (film)
・ Fish out of Water (game)
・ Fish Outta Water
・ Fish Camp, California
・ Fish Canneries Reference
・ Fish Canyon Tuff
・ Fish carving
・ Fish chowder
・ Fish Church
・ Fish company
・ Fish cosmetic palette
Fish counter
・ Fish Cove
・ Fish cracker
・ Fish Creek
・ Fish creek
・ Fish Creek (Douglas Island, Juneau, Alaska)
・ Fish Creek (Georgia)
・ Fish Creek (Kansas)
・ Fish Creek (Larimer County, Colorado)
・ Fish Creek (Oneida Lake)
・ Fish Creek (Saskatchewan)
・ Fish Creek Bridge
・ Fish Creek Covered Bridge
・ Fish Creek Dam
・ Fish Creek Falls


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Fish counter : ウィキペディア英語版
Fish counter
Automatic fish counters are automatic devices for measuring the number of fish passing along a particular river in a particular period of time. Usually one particular species is of interest.
One important species studied by fish counters are Atlantic salmon. This species is of interest owing to its ecologically vulnerable status and anadromous lifestyles.
== Methods of operation ==

Fish counters can be divided into three principal types: resistive counters, optical counters, and hydroacoustic counters.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Fish counter」の詳細全文を読む



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