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Beaver Restoration Guidebook (Pollock et al, 2017)

2022-06-28T13:45:18+00:00

Increasingly, restoration practitioners are using beaver to accomplish stream, wetland, and floodplain restoration. This is happening because, by constructing dams that impound water and retain sediment, beaver substantially alter the physical, chemical, and biological characteristics of the surrounding river ecosystem, providing benefits to plants, fish, and wildlife. The possible results are many, inclusive of: higher water tables; reconnected and expanded floodplains; more hyporheic exchange; higher summer base flows; expanded wetlands; improved water quality; greater habitat complexity; more diversity and richness in the populations of plants, birds, fish, amphibians, reptiles, and mammals; and overall increased complexity of the riverine ecosystems. [...]

Beaver Restoration Guidebook (Pollock et al, 2017)2022-06-28T13:45:18+00:00

Review on Intertidal Water Crossing Structures & Fish (Greene et al, 2017)

2022-06-28T13:54:19+00:00

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. VIEW PDF

Review on Intertidal Water Crossing Structures & Fish (Greene et al, 2017)2022-06-28T13:54:19+00:00

The Beaver Restoration Guidebook

2022-06-28T13:54:39+00:00

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The Beaver Restoration Guidebook2022-06-28T13:54:39+00:00

Summer Streamflow Deficits from Regenerating Douglas‐fir Forest in the Pacific Northwest (Perry & Jones, 2016)

2022-06-28T13:41:43+00:00

Despite controversy about effects of plantation forestry on streamflow, streamflow response to forest plantations over multiple decades is not well understood. Analysis of 60‐year records of daily streamflow from eight paired‐basin experiments in the Pacific Northwest of the United States (Oregon) revealed that the conversion of old‐growth forest to Douglas‐fir plantations had a major effect on summer streamflow. Average daily streamflow in summer (July through September) in basins with 34‐ to 43‐year‐old plantations of Douglas‐fir was 50% lower than streamflow from reference basins with 150‐ to 500‐year‐old forests dominated by Douglas‐fir, western hemlock, and other conifers. Study plantations are [...]

Summer Streamflow Deficits from Regenerating Douglas‐fir Forest in the Pacific Northwest (Perry & Jones, 2016)2022-06-28T13:41:43+00:00

Ecosystem Experiment Reveals Benefits of Natural & Simulated Beaver Dams to a Threatened Population of Steelhead (Bouwes et al, 2016)

2022-06-28T13:44:40+00:00

Beaver have been referred to as ecosystem engineers because of the large impacts their dam building activities have on the landscape; however, the benefits they may provide to fluvial fish species has been debated. We conducted a watershed-scale experiment to test how increasing beaver dam and colony persistence in a highly degraded incised stream affects the freshwater production of steelhead (Oncorhynchus mykiss). Following the installation of beaver dam analogs (BDAs), we observed significant increases in the density, survival, and production of juvenile steelhead without impacting upstream and downstream migrations. The steelhead response occurred as the quantity and complexity of [...]

Ecosystem Experiment Reveals Benefits of Natural & Simulated Beaver Dams to a Threatened Population of Steelhead (Bouwes et al, 2016)2022-06-28T13:44:40+00:00

5-Year Review Summary Evaluation of Oregon Coast Coho Salmon (NOAA, 2016)

2022-06-28T13:48:20+00:00

Many West Coast salmon and steelhead (Oncorhynchus sp.) stocks have declined substantially from their historic numbers and now are at a fraction of their historical abundance. There are several factors that contribute to these declines, including: overfishing, loss of freshwater and estuarine habitat, hydropower development, poor ocean conditions, and hatchery practices. These factors collectively led to the National Marine Fisheries Service’s (NMFS) listing of 28 salmon and steelhead stocks in California, Idaho, Oregon, and Washington under the Federal Endangered Species Act (ESA). VIEW PDF

5-Year Review Summary Evaluation of Oregon Coast Coho Salmon (NOAA, 2016)2022-06-28T13:48:20+00:00

Understanding the Distribution of Juvenile Coho Salmon on the Oregon Coast (Steel et al, 2016)

2022-06-28T13:49:07+00:00

Understanding the distribution of instream habitats and the density of fish within those habitats is 38 essential for effective watershed management and conservation of depressed fisheries 39 populations. For wide-ranging species with a complex life history, such as Pacific salmon, 40 untangling these relationships is particularly challenging. Field data describing instream habitats 41 are generally only available over a small fraction of a species range; occupied habitat types may 42 differ by life stage; and, even within a particular habitat type, suitability and capacity rarely 43 remain constant over time. Landscape-scale studies, based on the conceptual model that natural [...]

Understanding the Distribution of Juvenile Coho Salmon on the Oregon Coast (Steel et al, 2016)2022-06-28T13:49:07+00:00

Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon (Hance et al, 2016)

2022-06-28T13:49:19+00:00

For several species of Pacific salmon (Oncorhynchus spp.) inhabiting coastal temperate streams, juvenile fish have been recorded moving between mainstem and tributary habitats during the transition from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall movement for juvenile coho salmon between mainstem and tributary streams during the fall of 2002, 2003, 2004, and 2005. Juvenile coho salmon were [...]

Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon (Hance et al, 2016)2022-06-28T13:49:19+00:00

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