Abundance and Run Timing of Adult Pacific Salmon in the Tuluksak River, Yukon Delta National Wildlife Refuge, Alaska, 2002
Abundance and Run Timing of Adult Pacific Salmon in the Tuluksak River, Yukon Delta National Wildlife Refuge, Alaska, 2001
Spawning and Seasonal Distribution of Adult Steelhead in Southcentral Alaska’s Kasilof River Watershed from 2007 to 2008
Streams across the world are highly fragmented due to the presence of in-stream barriers (e.g., dams and stream-road crossings), many of which restrict or block fish passage. Retrofitting or replacing these structures is a high priority for restoring habitat connectivity for native fishes and other aquatic organisms in the Pacific Northwest. The task of restoring habitat connectivity for problematic stream-road crossings is daunting given the many thousands of barriers that are present and the massive financial investments required. Further, the potential risks to road infrastructure from flooding, debris flows, and climate change will need to be addressed to ensure the best allocation of resources. In this study,...
Landscape conservation cooperatives (LCCs) are conservation-science partnerships between the U.S. Fish and Wildlife Service, U.S. Geological Survey (USGS), and other federal agencies, states, tribes, NGOs, universities and stakeholders within a geographically defined area. They inform resource management decisions to address national-scale stressors-including habitat fragmentation, genetic isolation, spread of invasive species, and water scarcity-all of which are accelerated by climate change.
Environmental Contaminants Program: To protect, improve and restore the quality of fish, wildlife and habitat resources through the identification, prevention and correction of environmental contaminant problems in Alaska. [The page provides links to the following documents:] Contaminant Studies and Technical Reports Organochlorine Analysis in Burbot (Lota lota) (pdf. 451 KB) Contaminants in Peregrine Falcon Eggs Peregrine Falcon Population Trends: Porcupine River, Alaska Contaminant Assessment: Kenai National Wildlife Refuge Kensington Mine Area: Baseline Contaminants Study Contaminant Data: Selawik Wildlife Refuge (pdf. 7,513 KB) Contaminant Data: Nowitna Wildlife Refuge (pdf. 1,971 KB) Metal Analyses at Kanuti...
Evidence of handling mortality in fall chum salmon caused by fish wheel capture on the Yukon River, Alaska
Spawning and Seasonal Distribution of Adult Steelhead in Southcentral Alaska’s Kasilof River Watershed from 2007 to 2009
Considering Multiple Futures: Scenario Planning to Address Uncertainty in Natural Resource Conservation
An Investigation of the Potential Effects of Selective Exploitation on the Demography and Productivity of Yukon River Chinook Salmon
Yukon River Chinook salmon (Oncorhynchus tshawytscha) have been targeted in large-mesh gill net fisheries for over 100 years. Recent reductions in productivity and perceptions of reduced size and earlier age at maturation have elevated concerns regarding the potential consequences of the selective exploitation of large fish. Investigations associating changes in population productivity and demography, particularly size and age composition, with overharvest and selective exploitation are common in the fisheries literature. However, most such investigations have considered long-lived species repeatedly subject to exploitation, often prior to maturation. Similar investigations concerning semelparous Pacific salmon...