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 | | South Fork Bull River bull trout habitat restoration. |
Clients hire RDG to address aquatic habitat impairment in watersheds supporting threatened and endangered fish species, and species of special concern. Example focus species include bull trout and westslope cutthroat trout in Montana and Idaho; and shortnose suckers, Lost River suckers, Klamath large scale suckers, and Klamath redband trout in the Upper Klamath Basin of southern Oregon.
RDG's multidisciplinary staff conducts fish habitat assessments as components in watershed assessments. Standard surveys include channel morphology surveys, large woody debris counts, riparian vegetation evaluations, aquatic macroinvertebrate surveys, and water quality sampling. Understanding river processes and how aquatic habitats are formed and maintained are essential in the river restoration design process. RDG's incorporation of large woody debris jams, native grade control elements, and a reliance on riparian vegetation to facilitate aquatic habitat diversity are common elements of RDG's restoration designs. Working with project stakeholders is essential for determining species needs in order to prepare designs with the greatest potential for long-term project success. Encouraging responsible post-project land stewardship benefits both the landowner and the natural resources.
Fisheries Services  | | Brown Spring Creek as-built step pool for fish passage. |
- River corridor and fish habitat assessments
- Woody debris recruitment evaluation
- Aquatic macroinvertebrate sampling
- McNeil core sampling
- Water quality monitoring
- Fish passage evaluation
- Spawning surveys
- Surface water diversion improvements
- Aquatic habitat improvement designs
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