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Fish

Recreational and inland fisheries are invaluable to their local communities, providing economic support, food security, and enhanced social connection with natural areas. CASC scientists examine how climate change is contributing to aquatic habitat loss, increased river and lake temperatures, and invasive aquatic species to help fisheries adapt to these changes. Explore our science on fish below.

Filter Total Items: 150

Impact of Climate Driven Changes to Water Levels on Recreational Fisheries in the Northern Glaciated Plains

The Northern Glaciated Plains in the upper Midwest United States is a region where fishing generates millions of dollars a year for local and state economies. Maintaining these revenues requires the management of fish populations that are popular and accessible (e.g. boat ramps, public land access) to anglers. Fisheries throughout the world are currently undergoing unprecedented changes to water l
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Impact of Climate Driven Changes to Water Levels on Recreational Fisheries in the Northern Glaciated Plains

The Northern Glaciated Plains in the upper Midwest United States is a region where fishing generates millions of dollars a year for local and state economies. Maintaining these revenues requires the management of fish populations that are popular and accessible (e.g. boat ramps, public land access) to anglers. Fisheries throughout the world are currently undergoing unprecedented changes to water l
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Incorporating Climate, Disease and Invasive Species into the Conservation of a First Food, Klamath Redband Trout

Climate change has the potential to magnify existing problems in conservation, such as invasive species and disease. This threat is particularly severe in the Klamath Basin, where the fish parasite Ceratonova shastais making national headlines for killing salmon, and invasive trout have extirpated populations of native trout. The Klamath Basin is slated for one of the largest restoration projects
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Incorporating Climate, Disease and Invasive Species into the Conservation of a First Food, Klamath Redband Trout

Climate change has the potential to magnify existing problems in conservation, such as invasive species and disease. This threat is particularly severe in the Klamath Basin, where the fish parasite Ceratonova shastais making national headlines for killing salmon, and invasive trout have extirpated populations of native trout. The Klamath Basin is slated for one of the largest restoration projects
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Indigenous Perspectives on Lake Sturgeon and the Potential Impact of Climate Change

Lake sturgeon are a fish of strong subsistence, cultural, and spiritual importance for many Tribal nations. But lake sturgeon are especially vulnerable to climate change given their unique life history and historical mass declines. Therefore, there is a great need to incorporate Tribal perspectives on lake sturgeon shifts and information needs into adaptation planning to conserve these fish in a c
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Indigenous Perspectives on Lake Sturgeon and the Potential Impact of Climate Change

Lake sturgeon are a fish of strong subsistence, cultural, and spiritual importance for many Tribal nations. But lake sturgeon are especially vulnerable to climate change given their unique life history and historical mass declines. Therefore, there is a great need to incorporate Tribal perspectives on lake sturgeon shifts and information needs into adaptation planning to conserve these fish in a c
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Informing Mekong River Basin Resiliency and Climate Adaptation

CASC experts are often requested to provide technical assistance to other Federal agencies, including the U.S. Department of State, as well as national and international partners. The U.S. Consulate in Thailand solicited leadership and guidance from the CASCs to help develop community-supported recommendations for increasing resiliency for fishing communities in the Mekong River Basin. Thail
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Informing Mekong River Basin Resiliency and Climate Adaptation

CASC experts are often requested to provide technical assistance to other Federal agencies, including the U.S. Department of State, as well as national and international partners. The U.S. Consulate in Thailand solicited leadership and guidance from the CASCs to help develop community-supported recommendations for increasing resiliency for fishing communities in the Mekong River Basin. Thail
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Integrating Multiple Data Sets to Inform Climate Adaptation Strategies for Inland Fish and Recreational Fishing

Climate change is reshaping the abundance and distribution of sport fishes across the U.S., creating novel challenges for socially and economically important recreational fisheries. Existing fish and recreational fisheries data sets are invaluable given their broad geographic footprint and long-term data, but integration across datasets to inform management has been limited, leading to obstacles i
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Integrating Multiple Data Sets to Inform Climate Adaptation Strategies for Inland Fish and Recreational Fishing

Climate change is reshaping the abundance and distribution of sport fishes across the U.S., creating novel challenges for socially and economically important recreational fisheries. Existing fish and recreational fisheries data sets are invaluable given their broad geographic footprint and long-term data, but integration across datasets to inform management has been limited, leading to obstacles i
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Putting the Sampling Design to Work: Enhancing Species Monitoring Programs in the Face of Climate Change

Studying the impacts of climate on important ecological responses is a recent priority of monitoring programs throughout the Northeast. Established sampling protocols for data collection, whether to inform estimates of species abundance or occupancy, were designed to evaluate the effects of non-climate stressors (e.g., habitat conversion) and related management actions. Traditional modeling approa
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Putting the Sampling Design to Work: Enhancing Species Monitoring Programs in the Face of Climate Change

Studying the impacts of climate on important ecological responses is a recent priority of monitoring programs throughout the Northeast. Established sampling protocols for data collection, whether to inform estimates of species abundance or occupancy, were designed to evaluate the effects of non-climate stressors (e.g., habitat conversion) and related management actions. Traditional modeling approa
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South Fork Nooksack River Engineered Logjam Effectiveness Project: Are Engineered Logjams Creating Cool-Water Refuges for Pacific Salmon on a Thermally Impaired River?

Pacific salmon need cold water and quality habitat to survive. As climate change continues to increase river temperatures, effective methods to restore cool-water refuges and logjam habitats need to be determined. Many salmon habitat restoration projects in the Pacific Northwest have built engineered logjams (ELJs) to create deep, cool pools and reconnect rivers to floodplains to replenish cool gr
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South Fork Nooksack River Engineered Logjam Effectiveness Project: Are Engineered Logjams Creating Cool-Water Refuges for Pacific Salmon on a Thermally Impaired River?

Pacific salmon need cold water and quality habitat to survive. As climate change continues to increase river temperatures, effective methods to restore cool-water refuges and logjam habitats need to be determined. Many salmon habitat restoration projects in the Pacific Northwest have built engineered logjams (ELJs) to create deep, cool pools and reconnect rivers to floodplains to replenish cool gr
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The Implications of Stream Fragmentation for Climate Change Resilience of Northern Prairie Fishes

Dry stream sections are characteristic of most prairie streams. Native fish are highly adapted to variable environments, using refuge habitats (e.g., remaining wet stream fragments) to recolonize areas after seasonal drying. However, dams and other barriers can prevent recolonization of seasonally-dry stream sections habitats known to be critical spawning and rearing areas for many species. This p
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The Implications of Stream Fragmentation for Climate Change Resilience of Northern Prairie Fishes

Dry stream sections are characteristic of most prairie streams. Native fish are highly adapted to variable environments, using refuge habitats (e.g., remaining wet stream fragments) to recolonize areas after seasonal drying. However, dams and other barriers can prevent recolonization of seasonally-dry stream sections habitats known to be critical spawning and rearing areas for many species. This p
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Water, Water Everywhere: Adapting Water Control Operations and Floodplain Conservation Planning to Global Change

Global change processes are producing shifts in temperature, precipitation, and seasonal streamflow regimes across North America. Much of the floodplain hydrology in the U.S. is managed through water control operations, often implemented on short time scales (e.g., weekly decisions), in response to short-term changes in precipitation. This operational model does not account for potential long-term
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Water, Water Everywhere: Adapting Water Control Operations and Floodplain Conservation Planning to Global Change

Global change processes are producing shifts in temperature, precipitation, and seasonal streamflow regimes across North America. Much of the floodplain hydrology in the U.S. is managed through water control operations, often implemented on short time scales (e.g., weekly decisions), in response to short-term changes in precipitation. This operational model does not account for potential long-term
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A Roadmap for Developing Resilient Coastal Shellfish Populations: Using Spatial and Process-Based Modelling for Restoration Under Current and Predicted Future Water Quality Conditions

Estuaries support valuable recreation, fisheries, and aquaculture and are dependent on healthy and vibrant ecosystems. Along the northern Gulf of Mexico, estuaries sustain local economies through their high productivity. They also receive over 50% of the United States watershed discharge, and water quality within these estuaries is impacted by local management actions. Within these estuaries, eas
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A Roadmap for Developing Resilient Coastal Shellfish Populations: Using Spatial and Process-Based Modelling for Restoration Under Current and Predicted Future Water Quality Conditions

Estuaries support valuable recreation, fisheries, and aquaculture and are dependent on healthy and vibrant ecosystems. Along the northern Gulf of Mexico, estuaries sustain local economies through their high productivity. They also receive over 50% of the United States watershed discharge, and water quality within these estuaries is impacted by local management actions. Within these estuaries, eas
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Accounting for Ecological Impacts of Climate Change in State Wildlife Action Plans: A comparison of Model-Based and Index-Based Vulnerability Assessments

State wildlife agencies and their partners use State Wildlife Action Plans to coordinate and guide management activities aimed at protecting species. To do so, they must identify factors putting species and their habitats at risk. Current and future climate change is one such factor. To succeed, management actions need to account for impacts of climate change on species today and in the future as
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Accounting for Ecological Impacts of Climate Change in State Wildlife Action Plans: A comparison of Model-Based and Index-Based Vulnerability Assessments

State wildlife agencies and their partners use State Wildlife Action Plans to coordinate and guide management activities aimed at protecting species. To do so, they must identify factors putting species and their habitats at risk. Current and future climate change is one such factor. To succeed, management actions need to account for impacts of climate change on species today and in the future as
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Clam Gardens: An Indigenous Community-Driven Climate Adaptation Strategy to Manage Aquatic Species and Habitats in the Pacific Northwest

Healthy shellfish beds provide important ecosystem services, support local economies, and promote human well-being and sense of place. For Coast Salish Tribes, including the Swinomish Indian Tribal Community (SITC), clams are a highly valued traditional food, playing a key role in Coast Salish worldviews. Clam harvests also provide: opportunities for tribal members to exercise their treaty rights;
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Clam Gardens: An Indigenous Community-Driven Climate Adaptation Strategy to Manage Aquatic Species and Habitats in the Pacific Northwest

Healthy shellfish beds provide important ecosystem services, support local economies, and promote human well-being and sense of place. For Coast Salish Tribes, including the Swinomish Indian Tribal Community (SITC), clams are a highly valued traditional food, playing a key role in Coast Salish worldviews. Clam harvests also provide: opportunities for tribal members to exercise their treaty rights;
Learn More