Upper Midwest Environmental Sciences Center
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Ylinaerae, T. (1991). Measuring the velocity of water at fish ladders. Vesitalous. 32:31-34.
A more versatile apparatus than the propeller current meter has been tested for measuring water velocity in the course of research into the swimming behaviour of migratory fish. A multidimensional rather than a unidimensional device was needed for continuous recordings. The new apparatus is a two-channel electromagnetic Marsh-McBirney M511 water velocity meter. The recorded analog signal is processed with a personal computer and Data Translation's DT 2801-A data acquisition board. The software is Asystant+, which is a menu-run scientific program for data acquisition, analysis and graphics.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://umesc.usgs.gov/URL: http://umesc.usgs.gov/data_library/fisheries/fish_passage/ylinaerae.html
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