Hydraulic relationship between swimming fish and water flowing in culverts
Proper passage of fish through culverts is an important element of design of highways, railroads and pipelines for the North. Though several investigators have attempted to define swimming capabilities of fish, it does not appear that the swimming requirements for fish to pass through culverts and o...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
1987
|
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.422.9430 http://www.arlis.org/docs/vol1/F/FishPassage/Behlke-1987.pdf |
| Summary: | Proper passage of fish through culverts is an important element of design of highways, railroads and pipelines for the North. Though several investigators have attempted to define swimming capabilities of fish, it does not appear that the swimming requirements for fish to pass through culverts and other fish passage structures have been properly analyzed and defined. This paper defines and analyzes the forces which fish are confronted with in entering and passing through barrels of sloping culverts flowing full and as open channels. The perched culvert receives particular anal.ytical attention. Power and total energy requirements are also defined and developed for fish passing through barrels of culverts. The methods of analysis are general and can be utilized for analyses of fish passage swimming requirements through other types of fish passage facilities. Field observations of Arctic grayling, by the writer and others at Poplar Grove Creek, Al.aska, are used as examples of potential validity of conclusions, suqgested by the analytical developments of the paper. |
|---|