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.
Famous quotes containing the words fish and/or counter:
“Of all natures animated kingdoms, fish are the most unchristian, inhospitable, heartless, and cold-blooded of creatures.”
—Herman Melville (18191891)
“Often, when there is a conflict between parent and child, at its very hub is an expectation that the child should be acting differently. Sometimes these expectations run counter what is known about childrens growth. They stem from remembering oneself, but usually at a slightly older age.”
—Ellen Galinsky (20th century)