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Welcome
The Fish Passage Decision Support System (FPDSS) is an online application
funded by the U.S. FWS Fish Passage Program.
The FPDSS makes information about
barriers to fish passage in the U.S. available to policy makers and the public.
Barrier Removal Modeling
Model the removal of a barrier to fish passage. The modeling operation can model fish passage
both upstream and downstream of the barrier.
Featured Fish Passage Program Project
| Project Name: | Big Hole River, Montana | | FWS Region: | Mountain-Prairie | | Year Completed: | 1999 | | Description: | The Big Hole River, in southwest Montana, contains the last native population of the fluvial (river dwelling) Arctic grayling in the lower 48 states. The fluvial Arctic grayling are currently a candidate species for listing under the ... | | Benefits: | This project installed irrigation diversion screening, preventing juvenile fish from being lost in hay fields or irrigation ditches and maintaining within a 20-mile stretch of riverine habitat. |
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