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We will develop a set of linked models to help predict the effects of climate change on rivers and endangered species. These will include watershed- and reach-scale models to predict streamflow, water temperatures, and other fish habitat metrics under various climatic scenarios for the reaches used by species listed under the Endangered Species Act (ESA), plus a combined bioenergetics and life-cycle model (to be done by the U.S. Geological Survey [USGS]) to assess the impact of these factors on fish growth, reproduction, and survival. We propose to test the model framework at a site on the Methow River, Washington, to explore additional opportunities for collaboration and model development.
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Conclusions: In fragmented watersheds, macrohabitat attributes measured at the patch scale were far more effective in predicting trout translocation success than measurements taken at the landscape scale Thresholds/Learnings: As a course filter indicator of cutthroat trout translocation success, the study found that translocations have a greater than 50% chance of fruitful establishment in watersheds >14.7km2 in area. Synopsis: This study aimed to identify stream-scale and basin-scale macrohabitat attributes limiting successful translocation and persistence of native cutthroat trout populations in fragmented landscapes along the Rio Grande. The study developed models of habitat attributes measured at two scales...
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This project will look at how climate change has altered hydrologic systems, Pacific salmon habitat, and survival of salmon in the Nooksack River watershed. It will develop an adaptation plan that can be adopted and integrated into management plans.Project Objectives for NPLCC funding:1. Assess climate change impacts on fish and fish biology and inform salmon habitat restoration actions aimed at perpetuating all nine salmonid species in the Nooksack River basin in the face of climate change (partially funded by proposed NPLCC funding).2. Conduct a vulnerability assessment that will ultimately reduce sensitivity, reduce exposure, and increase adaptive capacity of salmon to climate change impacts (partially funded...
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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,...
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Conclusions: At small spatial scales, where extirpation risks are high, landscape fragmentation will likely have long-term negative consequences on the genetic variation of individual assemblages of coastal cutthroat trout. Thresholds/Learnings: Synopsis: This study aimed to determine if coastal cutthroat trout were genetically structured within streams and to assess the effects of habitat fragmentation on coastal cutthroat trout genetic variation. Habitat fragmented by roads and other human disturbances acted as dispersal barriers, which strongly influenced coastal cutthroat trout genetic structure, diversity, and differentiation. At range-wide spatial scales, fragmentation potentially contributes to coastal cutthroat...
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Salmonids, a group of coldwater adapted fishes of enormous ecological and socio-economic value, historically inhabited a variety of freshwater habitats throughout the Pacific Northwest (PNW). Over the past century, however, populations have dramatically declined due to habitat loss, overharvest, and invasive species. Consequently, many populations are listed as threatened or endangered under the U.S. Endangered Species Act. Complicating these stressors is global warming and associated climate change. Overall, aquatic ecosystems across the PNW are predicted to experience increasingly earlier snowmelt in the spring, reduced late spring and summer flows, increased winter flooding, warmer and drier summers, increased...
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This project will look at how climate change has altered hydrologic systems, Pacific salmon habitat, and survival of salmon in the Nooksack River watershed. It will develop an adaptation plan that can be adopted and integrated into management plans.Project Objectives for NPLCC funding:1. Assess climate change impacts on fish and fish biology and inform salmon habitat restoration actions aimed at perpetuating all nine salmonid species in the Nooksack River basin in the face of climate change (partially funded by proposed NPLCC funding).2. Conduct a vulnerability assessment that will ultimately reduce sensitivity, reduce exposure, and increase adaptive capacity of salmon to climate change impacts (partially funded...
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DOI, USDA, state fisheries managers, and NGOs are increasingly consumed with the recovery and restoration of native trout and salmon throughout their range. Almost all of the native inland cutthroat species, grayling and bull trout have been proposed for listing under the Endangered Species Act, a number are currently listed as �Threatened�, while others are under review. Trout and salmon historically inhabited a variety of freshwater habitats (streams, rivers, lakes, ponds, reservoirs), but have declined due to habitat degradation, fragmentation, and introductions of nonnative species. As such, the remaining intact populations of native trout, char, and grayling species in the western United States are largely...
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Oregon’s Upper Klamath Basin is one of the warmest watersheds in the Pacific Northwest. Despite its naturally warm waters, the basin supports abundant redband trout. These are some of the largest-bodied trout in the entire U.S., and are a culturally and economically important species, providing the last remaining subsistence fishery for the Klamath Tribes and drawing recreational anglers. The ability of this coldwater species to survive in one of the region’s warmest watersheds could hold valuable clues for conservation in the face of warming global temperatures, which represents one of the biggest threats to North America’s coldwater fish. Previous research has found that redband trout rely heavily on spring-fed...
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This project will look at how climate change has altered hydrologic systems, Pacific salmon habitat, and survival of salmon in the Nooksack River watershed. It will develop an adaptation plan that can be adopted and integrated into management plans. Project Objectives for NPLCC funding: 1. Assess climate change impacts on fish and fish biology and inform salmon habitat restoration actions aimed at perpetuating all nine salmonid species in the Nooksack River basin in the face of climate change (partially funded by proposed NPLCC funding). 2. Conduct a vulnerability assessment that will ultimately reduce sensitivity, reduce exposure, and increase adaptive capacity of salmon to climate change impacts (partially funded...
    map background search result map search result map Evaluating Climate-Induced Runoff and Temperature Change on Stream Habitat Metrics for Endangered or Threatened Fish - BOR Project FY2011 BC Freshwater Atlas Obstructions Predicting Climate Change Impacts on River Ecosystems and Salmonids across the Pacific Northwest The Potential Influence of Changing Climate on the Persistence of Native Salmonids "at Risk" Minimum habitat requirements for establishing translocated cutthroat trout populations. Influences of barriers to movement on within-watershed genetic variation of coastal cutthroat trout Nooksack River Climate Change Vulnerability Assessment, Restoration Planning, and Adaptation Plan Where the Stream Meets the Road: Prioritizing Culvert Replacement for Fish Passage - Thesis Glacier Summary Report 2015 Nooksack Indian Tribe NPLCC Final Progress Reporting How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River Influences of barriers to movement on within-watershed genetic variation of coastal cutthroat trout Nooksack River Climate Change Vulnerability Assessment, Restoration Planning, and Adaptation Plan Glacier Summary Report 2015 Nooksack Indian Tribe NPLCC Final Progress Reporting Evaluating Climate-Induced Runoff and Temperature Change on Stream Habitat Metrics for Endangered or Threatened Fish - BOR Project FY2011 Where the Stream Meets the Road: Prioritizing Culvert Replacement for Fish Passage - Thesis How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River Minimum habitat requirements for establishing translocated cutthroat trout populations. Predicting Climate Change Impacts on River Ecosystems and Salmonids across the Pacific Northwest BC Freshwater Atlas Obstructions The Potential Influence of Changing Climate on the Persistence of Native Salmonids "at Risk"