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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: 199

Balancing Water Usage and Ecosystem Outcomes Under Drought and Climate Change: Enhancing an Optimization Model for the Red River

Hydrologic drought and declining water availability are among the foremost stressors of stream ecosystems in the Red River basin. Resource managers face the challenge of apportioning scarce water resources among competing uses, but they lack a systematic framework for comparing the costs and benefits of proposed water management decisions and conservation actions. In 2016, Co-PIs Neeson...
Balancing Water Usage and Ecosystem Outcomes Under Drought and Climate Change: Enhancing an Optimization Model for the Red River

Balancing Water Usage and Ecosystem Outcomes Under Drought and Climate Change: Enhancing an Optimization Model for the Red River

Hydrologic drought and declining water availability are among the foremost stressors of stream ecosystems in the Red River basin. Resource managers face the challenge of apportioning scarce water resources among competing uses, but they lack a systematic framework for comparing the costs and benefits of proposed water management decisions and conservation actions. In 2016, Co-PIs Neeson and
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Climate Change Impacts on Invasive Species in the Northwest: A Synthesis and Path Forward

Invasive species have increasingly severe consequences for ecosystems and human communities alike. The ecological impacts of invasive species are often irreversible, and include the loss of native species and the spread of disease. Implications for human communities include damaged water transportation systems, reduced crop yields, reduced forage quality for livestock, and widespread...
Climate Change Impacts on Invasive Species in the Northwest: A Synthesis and Path Forward

Climate Change Impacts on Invasive Species in the Northwest: A Synthesis and Path Forward

Invasive species have increasingly severe consequences for ecosystems and human communities alike. The ecological impacts of invasive species are often irreversible, and include the loss of native species and the spread of disease. Implications for human communities include damaged water transportation systems, reduced crop yields, reduced forage quality for livestock, and widespread tree death -
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Development of the Wildlife Adaptation Menu for Resource Managers

The Climate Change Response Framework is an example of a collaborative, cross-boundary approach to create a set of tools, partnerships, and actions to support climate-informed conservation and land management. Historically, this effort has focused on the needs of forest managers and forestry professionals. In recent years, however, there has been increasing demand for science and tools...
Development of the Wildlife Adaptation Menu for Resource Managers

Development of the Wildlife Adaptation Menu for Resource Managers

The Climate Change Response Framework is an example of a collaborative, cross-boundary approach to create a set of tools, partnerships, and actions to support climate-informed conservation and land management. Historically, this effort has focused on the needs of forest managers and forestry professionals. In recent years, however, there has been increasing demand for science and tools to address
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Evaluation of Sustainable Water Availability in Drought Prone Watersheds in Southeastern Oklahoma

During the severe drought of 2010-2015, several communities in southeast Oklahoma almost ran out of water. Some of these communities rely on streams and rivers as their sole source of water and when these sources almost ran dry, it left them searching for alternatives and wondering how to continue growing, economically, with this water uncertainty. The possibility of climate change has...
Evaluation of Sustainable Water Availability in Drought Prone Watersheds in Southeastern Oklahoma

Evaluation of Sustainable Water Availability in Drought Prone Watersheds in Southeastern Oklahoma

During the severe drought of 2010-2015, several communities in southeast Oklahoma almost ran out of water. Some of these communities rely on streams and rivers as their sole source of water and when these sources almost ran dry, it left them searching for alternatives and wondering how to continue growing, economically, with this water uncertainty. The possibility of climate change has these
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Impacts of Global Change on Biotic Resistance, Resilience, and Ecosystem Services in Caribbean Fish Assemblages, Fisheries, and Aquatic Ecosystems

Extreme events not only affect people but can have detrimental impacts on natural resources, such as fish and freshwater habitats. Impacts of extreme events, like hurricanes, tornadoes, and extreme flooding, have immediate consequences, but also have the ability to alter habitats and animals far in the future by providing opportunities for exotic species to colonize new areas. Some fish
Impacts of Global Change on Biotic Resistance, Resilience, and Ecosystem Services in Caribbean Fish Assemblages, Fisheries, and Aquatic Ecosystems

Impacts of Global Change on Biotic Resistance, Resilience, and Ecosystem Services in Caribbean Fish Assemblages, Fisheries, and Aquatic Ecosystems

Extreme events not only affect people but can have detrimental impacts on natural resources, such as fish and freshwater habitats. Impacts of extreme events, like hurricanes, tornadoes, and extreme flooding, have immediate consequences, but also have the ability to alter habitats and animals far in the future by providing opportunities for exotic species to colonize new areas. Some fish
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Making an Invisible Resource Visible: Integrating Inland Fisheries into the Sustainable Development Goals

Inland fisheries make up more than 50% of all food fish in the world. Sustainable inland fisheries can support global economic development by providing food for billions and livelihood for millions of people worldwide. However, it can be difficult to quantitatively track and evaluate the services that inland fisheries provide to communities, which ultimately means that the contributions...
Making an Invisible Resource Visible: Integrating Inland Fisheries into the Sustainable Development Goals

Making an Invisible Resource Visible: Integrating Inland Fisheries into the Sustainable Development Goals

Inland fisheries make up more than 50% of all food fish in the world. Sustainable inland fisheries can support global economic development by providing food for billions and livelihood for millions of people worldwide. However, it can be difficult to quantitatively track and evaluate the services that inland fisheries provide to communities, which ultimately means that the contributions of this
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Trophic Implications of a Phenological Paradigm Shift: Bald Eagles and Salmon in a Changing Climate

Climate change influences apex predators in complex ways, due to their important trophic position, capacity for resource plasticity, and sensitivity to numerous anthropogenic stressors. Bald eagles, an ecologically and culturally significant apex predator, congregate seasonally in high densities on salmon spawning rivers across the Pacific Northwest. One of the largest eagle...
Trophic Implications of a Phenological Paradigm Shift: Bald Eagles and Salmon in a Changing Climate

Trophic Implications of a Phenological Paradigm Shift: Bald Eagles and Salmon in a Changing Climate

Climate change influences apex predators in complex ways, due to their important trophic position, capacity for resource plasticity, and sensitivity to numerous anthropogenic stressors. Bald eagles, an ecologically and culturally significant apex predator, congregate seasonally in high densities on salmon spawning rivers across the Pacific Northwest. One of the largest eagle concentrations is in
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“Hyperscale” Modeling to Understand and Predict Temperature Changes in Midwest Lakes

Many inland waters across the United States are experiencing warming water temperatures. The impacts of this warming on aquatic ecosystems are significant in many areas, causing problems for fisheries management, as many economically and ecologically important fish species are experiencing range shifts and population declines. Fisheries and natural resource managers need timely and...
“Hyperscale” Modeling to Understand and Predict Temperature Changes in Midwest Lakes

“Hyperscale” Modeling to Understand and Predict Temperature Changes in Midwest Lakes

Many inland waters across the United States are experiencing warming water temperatures. The impacts of this warming on aquatic ecosystems are significant in many areas, causing problems for fisheries management, as many economically and ecologically important fish species are experiencing range shifts and population declines. Fisheries and natural resource managers need timely and usable data and
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Webinar: A Framework for Evaluating the Vulnerability of Multiple Wildlife Species to Climate Change at Regional Scales

View this webinar to learn how scientists are examining the vulnerability of fish, amphibians, and reptiles in Oregon to climate change.
Webinar: A Framework for Evaluating the Vulnerability of Multiple Wildlife Species to Climate Change at Regional Scales

Webinar: A Framework for Evaluating the Vulnerability of Multiple Wildlife Species to Climate Change at Regional Scales

View this webinar to learn how scientists are examining the vulnerability of fish, amphibians, and reptiles in Oregon to climate change.
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Assessing the Impact of Future Climate on Hawai‘i’s Aquatic Ecosystems

The stream systems of Hawai‘i are unique and home to many rare species, including five native fish and five native shellfish. These native species have amphidromous life cycles, meaning that they spend part of their lives in the ocean and part in freshwater streams. Stream flow serves as a vital natural pathway, connecting saltwater and freshwater habitats so that these animals can...
Assessing the Impact of Future Climate on Hawai‘i’s Aquatic Ecosystems

Assessing the Impact of Future Climate on Hawai‘i’s Aquatic Ecosystems

The stream systems of Hawai‘i are unique and home to many rare species, including five native fish and five native shellfish. These native species have amphidromous life cycles, meaning that they spend part of their lives in the ocean and part in freshwater streams. Stream flow serves as a vital natural pathway, connecting saltwater and freshwater habitats so that these animals can migrate between
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Evaluating Future Effects of Climate and Land Use on Fisheries Production in Inland Lakes

Inland fisheries are critical for global food security and human well-being. However, fish production may be threatened by changes in climate and land use. Understanding this threat is crucial to effectively manage inland fisheries in the future. To address this need, this project will identify which types of lakes across the globe are most vulnerable to the impacts of climate and land...
Evaluating Future Effects of Climate and Land Use on Fisheries Production in Inland Lakes

Evaluating Future Effects of Climate and Land Use on Fisheries Production in Inland Lakes

Inland fisheries are critical for global food security and human well-being. However, fish production may be threatened by changes in climate and land use. Understanding this threat is crucial to effectively manage inland fisheries in the future. To address this need, this project will identify which types of lakes across the globe are most vulnerable to the impacts of climate and land use changes
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Evaluating the Effectiveness of Assisted Migration and Fish Rescue Programs

Climate change, drought, habitat alterations, and increasing water demands are leaving less water available for streams of the Pacific Northwest and for fish like salmon. As water levels drop, some small streams become fragmented, transforming from a ribbon of continuous habitat into a series of isolated pools. Fragmented streams may pose a serious threat to salmon. For example...
Evaluating the Effectiveness of Assisted Migration and Fish Rescue Programs

Evaluating the Effectiveness of Assisted Migration and Fish Rescue Programs

Climate change, drought, habitat alterations, and increasing water demands are leaving less water available for streams of the Pacific Northwest and for fish like salmon. As water levels drop, some small streams become fragmented, transforming from a ribbon of continuous habitat into a series of isolated pools. Fragmented streams may pose a serious threat to salmon. For example, juveniles that
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