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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

Where the Creek Meets the Tide: Effects of Climate Change on Salmon, Homes, and Businesses, and the Squaxin Island Tribe

The Squaxin Island Tribe (SIT) is descended from maritime people who have lived and prospered along the shores of the southernmost inlets of the Salish Sea for millennia. Climate change is projected to result in lower low water flows, higher peak water temperatures, and bigger and more frequent floods, due to both changes in peak flows and sea level rise. These changes could have significant impac
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Where the Creek Meets the Tide: Effects of Climate Change on Salmon, Homes, and Businesses, and the Squaxin Island Tribe

The Squaxin Island Tribe (SIT) is descended from maritime people who have lived and prospered along the shores of the southernmost inlets of the Salish Sea for millennia. Climate change is projected to result in lower low water flows, higher peak water temperatures, and bigger and more frequent floods, due to both changes in peak flows and sea level rise. These changes could have significant impac
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Webinar: Timing is Everything: How Fish and Wildlife are Responding to Climate Change Through Shifts in the Timing of Life Events

View this webinar to learn how warming conditions are affecting the seasonal timing of recurring life history events (such as breeding, feeding, and movements) for species across the Gulf of Maine.
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Webinar: Timing is Everything: How Fish and Wildlife are Responding to Climate Change Through Shifts in the Timing of Life Events

View this webinar to learn how warming conditions are affecting the seasonal timing of recurring life history events (such as breeding, feeding, and movements) for species across the Gulf of Maine.
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A Climate Risk Management Screening and Assessment Review for Madagascar’s Country Development Cooperation Strategy

Madagascar, a country rich in natural capital and biodiversity but with high levels of poverty, food insecurity, and population growth, faces a number of development challenges, including obtaining sustained financial support from external sources and building internal capacity to address the poor environmental, health, and socio-economic conditions. Climate change poses an increasing threat to ac
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A Climate Risk Management Screening and Assessment Review for Madagascar’s Country Development Cooperation Strategy

Madagascar, a country rich in natural capital and biodiversity but with high levels of poverty, food insecurity, and population growth, faces a number of development challenges, including obtaining sustained financial support from external sources and building internal capacity to address the poor environmental, health, and socio-economic conditions. Climate change poses an increasing threat to ac
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An Assessment of Invasive Species Range Shifts in the Southeastern U.S. and Actions to Manage Them

Species are on the move as they respond to climate change. This includes many native species, but also species with high costs to society such as disease vectors, pests, and nonnative invasive species (an invasive species is a species that is not native to a specific location but is spreading with the tendency of causing damage to native plants and animals). Currently there are hundreds of invasiv
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An Assessment of Invasive Species Range Shifts in the Southeastern U.S. and Actions to Manage Them

Species are on the move as they respond to climate change. This includes many native species, but also species with high costs to society such as disease vectors, pests, and nonnative invasive species (an invasive species is a species that is not native to a specific location but is spreading with the tendency of causing damage to native plants and animals). Currently there are hundreds of invasiv
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Assessing State Fish and Wildlife Climate Adaptation Science Needs and Effectiveness

Fish and wildlife provide many important ecosystem and cultural services that support people, communities, and economies across the nation. Many observed changes in the global climate are already impacting the nation’s valuable natural resources. These impacts are expected to increase with continued changes in the climate system, putting our nation’s fish and wildlife at risk. State fish and wildl
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Assessing State Fish and Wildlife Climate Adaptation Science Needs and Effectiveness

Fish and wildlife provide many important ecosystem and cultural services that support people, communities, and economies across the nation. Many observed changes in the global climate are already impacting the nation’s valuable natural resources. These impacts are expected to increase with continued changes in the climate system, putting our nation’s fish and wildlife at risk. State fish and wildl
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Assessing the Vulnerability of Native Trout in the Northern Rockies: Linking Science and Management for Climate Adaptation

Trout are one of the most culturally, economically, and ecologically important groups of freshwater fishes in the Rocky Mountain region. However, human impacts and climate change are significantly altering freshwater ecosystems that support native trout species. Despite their broad importance, many of the region’s trout populations are threatened and some require immediate conservation efforts to
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Assessing the Vulnerability of Native Trout in the Northern Rockies: Linking Science and Management for Climate Adaptation

Trout are one of the most culturally, economically, and ecologically important groups of freshwater fishes in the Rocky Mountain region. However, human impacts and climate change are significantly altering freshwater ecosystems that support native trout species. Despite their broad importance, many of the region’s trout populations are threatened and some require immediate conservation efforts to
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Brook Trout Population Responses to Climate Variation Across the Southeast USA

Brook trout are the only native fish from the salmon family in the southeastern United States. Despite their recreational and cultural significance, human activities, such as habitat degradation and introduction of non-native species, have led to serious declines of brook trout populations in the region. Stream temperature and flow alterations from climate change are projected to impact this cold-
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Brook Trout Population Responses to Climate Variation Across the Southeast USA

Brook trout are the only native fish from the salmon family in the southeastern United States. Despite their recreational and cultural significance, human activities, such as habitat degradation and introduction of non-native species, have led to serious declines of brook trout populations in the region. Stream temperature and flow alterations from climate change are projected to impact this cold-
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Climate Vulnerability of Aquatic Species to Changing Stream Temperatures and Wildfire Across the Yukon and Kuskokwim River Basins, Alaska

Alaska is an ecologically, commercially, and recreationally diverse state, providing value to people and terrestrial and aquatic species alike. Presently, Alaska is experiencing climatic change faster than any other area of the United States, but across the state, comprehensive environmental monitoring is logistically difficult and expensive. For instance, only about 1% of U.S Geological Survey (U
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Climate Vulnerability of Aquatic Species to Changing Stream Temperatures and Wildfire Across the Yukon and Kuskokwim River Basins, Alaska

Alaska is an ecologically, commercially, and recreationally diverse state, providing value to people and terrestrial and aquatic species alike. Presently, Alaska is experiencing climatic change faster than any other area of the United States, but across the state, comprehensive environmental monitoring is logistically difficult and expensive. For instance, only about 1% of U.S Geological Survey (U
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Climate- and Land-Cover-Induced Shifts in the Distribution and Abundance of Invasive Fish and Their Impacts on Native Fish Communities in the Tennessee and Cumberland River Basins

The climate of the Southeast is changing rapidly. As streams warm and streamflow dynamics change due to climate and land-cover changes, previously unsuitable habitats may become hospitable for invasive species. Warmwater and large-river adapted invasive species such as Asian carps may move upstream as habitats that were previously too cold or had too little flow become welcoming environments for t
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Climate- and Land-Cover-Induced Shifts in the Distribution and Abundance of Invasive Fish and Their Impacts on Native Fish Communities in the Tennessee and Cumberland River Basins

The climate of the Southeast is changing rapidly. As streams warm and streamflow dynamics change due to climate and land-cover changes, previously unsuitable habitats may become hospitable for invasive species. Warmwater and large-river adapted invasive species such as Asian carps may move upstream as habitats that were previously too cold or had too little flow become welcoming environments for t
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Connecting Ecosystems from Mountains to the Sea in a Changing Climate

Freshwater is a critical driver for island ecosystems. In Hawaiʻi, though rainfall intensity has increased, total rainfall has been on the decline for the last two decades and, as a result, streamflow has also been reduced. The changes in dynamic patterns of streamflow could result in impacts to river, estuarine, and coastal habitats. In turn, these changes also affect the nine native Hawaiian aq
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Connecting Ecosystems from Mountains to the Sea in a Changing Climate

Freshwater is a critical driver for island ecosystems. In Hawaiʻi, though rainfall intensity has increased, total rainfall has been on the decline for the last two decades and, as a result, streamflow has also been reduced. The changes in dynamic patterns of streamflow could result in impacts to river, estuarine, and coastal habitats. In turn, these changes also affect the nine native Hawaiian aq
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Designing Climate-Resilient Habitat for At-Risk Species in the Southern Sierra Nevada Forest

Climate change adaptation research has made major advances over the last decade. For example, much is known about the impacts of climate change, many novel adaptation planning approaches have been developed, decision tools have become ubiquitous, and many novel adaptation options have been proposed. However, additional research is needed to demonstrate how these adaptation planning schemes can tra
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Designing Climate-Resilient Habitat for At-Risk Species in the Southern Sierra Nevada Forest

Climate change adaptation research has made major advances over the last decade. For example, much is known about the impacts of climate change, many novel adaptation planning approaches have been developed, decision tools have become ubiquitous, and many novel adaptation options have been proposed. However, additional research is needed to demonstrate how these adaptation planning schemes can tra
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Developing a Climate Change-Informed “Conservation Opportunity Area” Portfolio for Sensitive Species’ Preservation

Integrating climate change into place-based conservation (i.e. focusing efforts on a specific place or region) presents a pressing challenge in the future success of biodiversity conservation. In particular, the broad effects of climate change can make it difficult to prioritize specific actions in specific places. Currently, Natural Heritage New Mexico, along with state and federal partners, has
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Developing a Climate Change-Informed “Conservation Opportunity Area” Portfolio for Sensitive Species’ Preservation

Integrating climate change into place-based conservation (i.e. focusing efforts on a specific place or region) presents a pressing challenge in the future success of biodiversity conservation. In particular, the broad effects of climate change can make it difficult to prioritize specific actions in specific places. Currently, Natural Heritage New Mexico, along with state and federal partners, has
Learn More