Physical and biological monitoring and evaluation of the Lost Man Creek dam removal [draft final report]
Ozaki VL and Anderson DG. 1993. Physical and biological monitoring and evaluation of the Lost Man Creek dam removal [draft final report]
When Redwood National Park removed an unused hatchery dam on Lost Man Creek, staff began monitoring (in 1988) of effects on the stream below and its channel. (Release of sediment by this removal could affect aquatic habitat and the newer hatchery dam downstream.) The physical effects monitored include channel morphology and stability, sediment size distribution, and residual pool depth. Biological monitoring examined fish habitat and fish distribution resulting from removal of the dam. The paper describes methods and results, with profiles and data tables. Graphs show numbers of live salmonids and carcasses, indicating nearly doubled use of the upstream area after removal. The authors found minimal sedimentation occurring downstream of the dam, and habitat changes mainly in the immediate area. They found limitations in the use of habitat typing for identifying changes at this scale.
- Type
- Published Report
- Authors
- Ozaki, Vicki; Anderson, David
- Date of Issue
- 1993-10-25
- Units
- REDW
- Keywords
- Animal Studies, Aquatic Sciences, Carcasses, Dam Removal, Distribution, Fish, fluvial sediment, Geomorphology, Grain Size, Habitats, Lost Man Creek, Management, Monitoring, Pools, Presence (Biodiversity), River Channel, Rivers, Salmonids, Streams, Taxa Links To References