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National CASC

The National Climate Adaptation Science Center (NCASC) generates science and decision-making tools to help our nation respond to the effects of climate change on fish, wildlife, ecosystems, and communities by building relationships with resource managers and conservation practitioners to support effective climate adaptation planning across regional, national, and international scales.

Filter Total Items: 158

Webinar: The RAD (Resist-Accept-Direct) Climate Adaptation Framework

Join this webinar to learn more about the Resist-Accept-Direct (RAD) framework, a decision-making tool that helps resource managers make informed strategies for responding to ecological changes resulting from climate change!
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Webinar: The RAD (Resist-Accept-Direct) Climate Adaptation Framework

Join this webinar to learn more about the Resist-Accept-Direct (RAD) framework, a decision-making tool that helps resource managers make informed strategies for responding to ecological changes resulting from climate change!
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“Climate-Smart” Fisheries and Aquaculture to Support Resilient Aquatic Ecosystems in Vietnam

The Vietnamese government has committed to climate mitigation and adaptation in support of the Paris Agreement. Implementation of Vietnam’s Nationally Determined Contribution (NDC) to adaptation involves a greater focus on the Mekong River Delta, which is poised to be impacted by sea level rise. Saline intrusion from sea level rise and droughts can affect aquatic ecosystems and the services they p
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“Climate-Smart” Fisheries and Aquaculture to Support Resilient Aquatic Ecosystems in Vietnam

The Vietnamese government has committed to climate mitigation and adaptation in support of the Paris Agreement. Implementation of Vietnam’s Nationally Determined Contribution (NDC) to adaptation involves a greater focus on the Mekong River Delta, which is poised to be impacted by sea level rise. Saline intrusion from sea level rise and droughts can affect aquatic ecosystems and the services they p
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A Guide to Modeling Low Flows and Intermittent Streams in the Pacific Northwest

As droughts become more frequent, there is a growing need to understand how drought impacts streamflow permanence. Intermittent streams, or streams that go dry at some point during the year, are found in all ecoregions and represent over half of the global stream network length. As stream intermittence increases, there will be implications for both aquatic and terrestrial wildlife communities, lan
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A Guide to Modeling Low Flows and Intermittent Streams in the Pacific Northwest

As droughts become more frequent, there is a growing need to understand how drought impacts streamflow permanence. Intermittent streams, or streams that go dry at some point during the year, are found in all ecoregions and represent over half of the global stream network length. As stream intermittence increases, there will be implications for both aquatic and terrestrial wildlife communities, lan
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Filling the Knowledge Gaps: Extreme Weather Driven Changes in Streamflow Patterns and their Impacts on Fish in Hawaiian Streams

Freshwater is a critical driver for island ecosystems and essential part of the water cycle in tropical islands, which is threaten by climate change. Changes in streamflow patterns may impact streams, estuarine, and coastal habitats. In Hawai‘i, these habitats support five native stream fish species. To examine how changes in streamflow have impacted habitat quality for these native aquatic speci
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Filling the Knowledge Gaps: Extreme Weather Driven Changes in Streamflow Patterns and their Impacts on Fish in Hawaiian Streams

Freshwater is a critical driver for island ecosystems and essential part of the water cycle in tropical islands, which is threaten by climate change. Changes in streamflow patterns may impact streams, estuarine, and coastal habitats. In Hawai‘i, these habitats support five native stream fish species. To examine how changes in streamflow have impacted habitat quality for these native aquatic speci
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Future of Aquatic Flows: A Data-driven Framework to Inform Projections of Aquatic Flows in the Northeast

As climate change is impacting water resources and aquatic ecosystems, there is a great need for natural resource managers to assess adaptation measures in a holistic manner. This can be done by integrating model predictions of climate, hydrology, and ecosystems with observational data to better refine estimates of conditions on-the-ground; however, it can be challenging to combine these different
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Future of Aquatic Flows: A Data-driven Framework to Inform Projections of Aquatic Flows in the Northeast

As climate change is impacting water resources and aquatic ecosystems, there is a great need for natural resource managers to assess adaptation measures in a holistic manner. This can be done by integrating model predictions of climate, hydrology, and ecosystems with observational data to better refine estimates of conditions on-the-ground; however, it can be challenging to combine these different
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Future of Aquatic Flows: Endangered streams: Understanding misalignments between aquatic flows and management strategies to inform adaptation efforts

Stream flow is directly tied to climate, and numerous studies provide substantial evidence that climate change is a threat to future aquatic water flow processes. In the southwestern United States, mountain snow is a primary water source for streams and rivers. However, climate change is threatening the region's mountain snow, leading to reduced snowpack, earlier snowmelt, and more precipitation f
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Future of Aquatic Flows: Endangered streams: Understanding misalignments between aquatic flows and management strategies to inform adaptation efforts

Stream flow is directly tied to climate, and numerous studies provide substantial evidence that climate change is a threat to future aquatic water flow processes. In the southwestern United States, mountain snow is a primary water source for streams and rivers. However, climate change is threatening the region's mountain snow, leading to reduced snowpack, earlier snowmelt, and more precipitation f
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Future of Aquatic Flows: Exploring Changes in Rain-On-Snow Events and Their Influence on Future Streamflows, Stream Temperatures, and Management Priorities in the Great Lakes Basin

Rain-on-snow events occur when warm rain falls on an existing snowpack, causing rapid snowmelt that can lead to damaging floods, reduced spring and summer streamflow, and altered stream temperatures, with ecological, social, and economic consequences. Rain-on-snow events can result in a loss of riverine biodiversity, decreases in fisheries production, and degradation of stream habitat; water short
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Future of Aquatic Flows: Exploring Changes in Rain-On-Snow Events and Their Influence on Future Streamflows, Stream Temperatures, and Management Priorities in the Great Lakes Basin

Rain-on-snow events occur when warm rain falls on an existing snowpack, causing rapid snowmelt that can lead to damaging floods, reduced spring and summer streamflow, and altered stream temperatures, with ecological, social, and economic consequences. Rain-on-snow events can result in a loss of riverine biodiversity, decreases in fisheries production, and degradation of stream habitat; water short
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Future of Aquatic Flows: Impacts of Cryospheric Change on Aquatic Flows and Freshwater Habitat Quality for Fish and Communities

High latitude northern ecosystems are currently warming twice as fast as the global average. Over the last several decades, this has caused dramatic losses of frozen area in the Arctic and sub-Arctic. However, it is unclear how melting coastal mountain glaciers, thawing permafrost, and declines in snowpack will affect the quality of freshwater habitat for culturally and economically important salm
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Future of Aquatic Flows: Impacts of Cryospheric Change on Aquatic Flows and Freshwater Habitat Quality for Fish and Communities

High latitude northern ecosystems are currently warming twice as fast as the global average. Over the last several decades, this has caused dramatic losses of frozen area in the Arctic and sub-Arctic. However, it is unclear how melting coastal mountain glaciers, thawing permafrost, and declines in snowpack will affect the quality of freshwater habitat for culturally and economically important salm
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Future of Aquatic Flows: Towards a National Synthesis of Streamflow Regimes Under a Changing Climate

In ecosystems characterized by flowing water, such as rivers and streams, the dynamics of how the water moves - how deep it is, how fast it flows, how often it floods - have direct effects on the health, diversity, and sustainability of underlying communities. Yet increasingly, climate extremes like droughts and floods are disrupting fragile stream ecosystems by specifically changing their interna
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Future of Aquatic Flows: Towards a National Synthesis of Streamflow Regimes Under a Changing Climate

In ecosystems characterized by flowing water, such as rivers and streams, the dynamics of how the water moves - how deep it is, how fast it flows, how often it floods - have direct effects on the health, diversity, and sustainability of underlying communities. Yet increasingly, climate extremes like droughts and floods are disrupting fragile stream ecosystems by specifically changing their interna
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Future of Aquatic Flows: Towards a Synthesis of Changing Hydrology Under Increasing Climate Change and Disturbance Pressures

Understanding the paths by which water flows through the landscape is critical for providing fresh water for human use, maintaining ecosystem function, and better predicting how disturbances such as fire or drought may impact water quantity and water quality. Yet projected changes in climate, disturbances, and land use , are likely to alter hydrologic flow paths, and .natural resource managers inc
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Future of Aquatic Flows: Towards a Synthesis of Changing Hydrology Under Increasing Climate Change and Disturbance Pressures

Understanding the paths by which water flows through the landscape is critical for providing fresh water for human use, maintaining ecosystem function, and better predicting how disturbances such as fire or drought may impact water quantity and water quality. Yet projected changes in climate, disturbances, and land use , are likely to alter hydrologic flow paths, and .natural resource managers inc
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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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