fish ladder
series of pools that provides passage for fish as to enable migrating fish to swim upstream around a dam | ||||
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Fish ladder definition was found in categories: Language, Idioms & Slang(2) Society & Culture(1) Science & Technology(1) Encyclopedia(1)
Fish ladder Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
fish ladder
Noun
1. a series of ascending pools providing a passage for salmon to swim upstream past a dam
(hypernym) passage
Noun
1. a series of ascending pools providing a passage for salmon to swim upstream past a dam
(hypernym) passage
| hEnglish - advanced version |
fish ladder
fish ladder
n : a series of ascending pools providing a passage for salmon to swim upstream past a dam
fish ladder
n : a series of ascending pools providing a passage for salmon to swim upstream past a dam
Fish ladder Definition from Society & Culture Dictionaries & Glossaries
| Environmental Engineering (English ver.) |
FISH LADDER
(1) A series of small pools arranged in an ascending fashion to allow the migration of fish upstream past construction obstacles, such as dams. (2) An inclined trough which carries water from above to below a dam so that fish can easily swim upstream. There are various types, some with baffles to reduce the velocity of the water and some consisting of a series of boxes with water spilling down from one box to the next. Also see Fishway.
(1) A series of small pools arranged in an ascending fashion to allow the migration of fish upstream past construction obstacles, such as dams. (2) An inclined trough which carries water from above to below a dam so that fish can easily swim upstream. There are various types, some with baffles to reduce the velocity of the water and some consisting of a series of boxes with water spilling down from one box to the next. Also see Fishway.
Fish ladder Definition from Science & Technology Dictionaries & Glossaries
| Glossary Of Geography |
Fish Ladder
A series of shallow steps down which water is allowed to flow; designed to permit salmon to circumvent artificial barriers such as power dams as the salmon swim upstream to spawn.
A series of shallow steps down which water is allowed to flow; designed to permit salmon to circumvent artificial barriers such as power dams as the salmon swim upstream to spawn.
Fish ladder Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Fish ladder
Fishways, most commonly called fish ladders but also known as fish passes and in Australia they are referred to as fish steps, are structures on or around artificial barriers (such as dams and weirs) to facilitate diadromous fishes' natural migration. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ladder) into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver.
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