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A Simplified Rotary Fish Screen and an Automatic Water Gate
Author(s) -
Whalls Marvin J.,
Shetter David S.,
Vondett James E.
Publication year - 1957
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1956)86[371:asrfsa]2.0.co;2
Subject(s) - fish <actinopterygii> , marine engineering , streams , seal (emblem) , environmental science , container (type theory) , computer science , mechanical engineering , engineering , fishery , art , computer network , visual arts , biology
A simplified, rotary fish screen and an automatic water gate have been developed for use in streams or hatchery raceways. This self‐cleaning screen is designed to replace stationary, vertical screens which become plugged with leaves, sticks, and other water‐borne debris and require periodic cleaning in order to prevent water level fluctuations in raceways. It is of simple construction, operates for long periods, and is readily portable. It is not designed to replace large‐capacity, gear‐driven rotary screens. The gate is used in conjunction with a gear‐driven rotary screen, and is designed to open automatically during floods and pass water through the screen and to close automatically and seal off the screen when the water recedes to a normal level.