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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: 162

Developing an Indicator of Species Vulnerability to Climate Change to Support a Consistent Nationwide Approach to Assessing Vulnerability

Scientists and resource managers are in need of a better understanding of the status and trends of wildlife species and the vulnerability of these species to climate change. Effective prioritization of species and habitats for climate adaptation, endangered species management, and recreational and cultural hunting and fishing will require development, testing, and application of...
Developing an Indicator of Species Vulnerability to Climate Change to Support a Consistent Nationwide Approach to Assessing Vulnerability

Developing an Indicator of Species Vulnerability to Climate Change to Support a Consistent Nationwide Approach to Assessing Vulnerability

Scientists and resource managers are in need of a better understanding of the status and trends of wildlife species and the vulnerability of these species to climate change. Effective prioritization of species and habitats for climate adaptation, endangered species management, and recreational and cultural hunting and fishing will require development, testing, and application of comprehensive
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Effect of Extreme Tidal Events on Future Sea-Level Rise Scenarios for He‘eia Fish Communities undergoing Ahupua‘a Restoration

For the past few years, “king tides,” or the highest tides of the year, have been occurring more frequently and significantly affecting coastal environments across Hawaiʻi. Now, disappearing beaches and waves crashing over roadways are seemingly the “new normal.” In response, the state of Hawaiʻi is implementing adaptation strategies to combat tidal flooding in coastal areas. While flood
Effect of Extreme Tidal Events on Future Sea-Level Rise Scenarios for He‘eia Fish Communities undergoing Ahupua‘a Restoration

Effect of Extreme Tidal Events on Future Sea-Level Rise Scenarios for He‘eia Fish Communities undergoing Ahupua‘a Restoration

For the past few years, “king tides,” or the highest tides of the year, have been occurring more frequently and significantly affecting coastal environments across Hawaiʻi. Now, disappearing beaches and waves crashing over roadways are seemingly the “new normal.” In response, the state of Hawaiʻi is implementing adaptation strategies to combat tidal flooding in coastal areas. While flood
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Evaluating How Changing Climate and Water Clarity Can Affect Restoration of Native Coregonine Fish in Midwestern Lakes

Coregonines are a sub-family of freshwater fishes within the well-known Salmonidae family. In the upper midwestern U.S., these fishes have provided a key food source to Native Americans for millennia. Since the mid-20th century, however, their diversity and abundance has declined owing to several anthropogenic stressors including overfishing, declining quality of key habitat (e.g., dams
Evaluating How Changing Climate and Water Clarity Can Affect Restoration of Native Coregonine Fish in Midwestern Lakes

Evaluating How Changing Climate and Water Clarity Can Affect Restoration of Native Coregonine Fish in Midwestern Lakes

Coregonines are a sub-family of freshwater fishes within the well-known Salmonidae family. In the upper midwestern U.S., these fishes have provided a key food source to Native Americans for millennia. Since the mid-20th century, however, their diversity and abundance has declined owing to several anthropogenic stressors including overfishing, declining quality of key habitat (e.g., dams
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Increasing Tribal Climate Adaptive Capacity for Coastal Resources in the Northeast

Fish that migrate between fresh and salt waters, called diadromous fishes, are integral to coastal Tribal cultures as subsistence foods. Throughout their Northeast range, diadromous fish populations have shown strong declines over recent decades due to the combined impacts of habitat loss, pollution, overfishing, and climate change. These changes have led to decreasing access to...
Increasing Tribal Climate Adaptive Capacity for Coastal Resources in the Northeast

Increasing Tribal Climate Adaptive Capacity for Coastal Resources in the Northeast

Fish that migrate between fresh and salt waters, called diadromous fishes, are integral to coastal Tribal cultures as subsistence foods. Throughout their Northeast range, diadromous fish populations have shown strong declines over recent decades due to the combined impacts of habitat loss, pollution, overfishing, and climate change. These changes have led to decreasing access to traditional
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Phase One: Southeast Regional Invasive Species and Climate Change Management Network (SE RISCC)

Climate change is expected to worsen the harmful effects of invasive species on native wildlife. This presents a growing conservation challenge for invasive species managers in the southeastern United States where thousands of invasive species exist. While many of these invasive species currently have relatively small ranges in the southeastern U.S., climate change may allow them to...
Phase One: Southeast Regional Invasive Species and Climate Change Management Network (SE RISCC)

Phase One: Southeast Regional Invasive Species and Climate Change Management Network (SE RISCC)

Climate change is expected to worsen the harmful effects of invasive species on native wildlife. This presents a growing conservation challenge for invasive species managers in the southeastern United States where thousands of invasive species exist. While many of these invasive species currently have relatively small ranges in the southeastern U.S., climate change may allow them to expand into
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Public Acceptance and Preferences for Climate Change Adaptation in the Midwest

Climate change has the potential to change the kinds and numbers of fish and wildlife that are available for recreationists such as hunters, anglers, and birdwatchers. While we have some knowledge about what changes might look like concerning different fish and wildlife species, very little information is known about how anglers, hunters, and wildlife watchers might view such changes in...
Public Acceptance and Preferences for Climate Change Adaptation in the Midwest

Public Acceptance and Preferences for Climate Change Adaptation in the Midwest

Climate change has the potential to change the kinds and numbers of fish and wildlife that are available for recreationists such as hunters, anglers, and birdwatchers. While we have some knowledge about what changes might look like concerning different fish and wildlife species, very little information is known about how anglers, hunters, and wildlife watchers might view such changes in the areas
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Science to Inform the Management of Bluegill Fisheries as a Social-Ecological System Under a Changing Climate

Recreational fisheries offer invaluable benefits to the communities they serve, including economic support, food security, and enhanced social connection with natural areas. In North America, bluegill are one of the most important species in terms of providing accessible, harvest-oriented recreational fisheries. In Wisconsin, they are the most caught, most harvested, and second-most...
Science to Inform the Management of Bluegill Fisheries as a Social-Ecological System Under a Changing Climate

Science to Inform the Management of Bluegill Fisheries as a Social-Ecological System Under a Changing Climate

Recreational fisheries offer invaluable benefits to the communities they serve, including economic support, food security, and enhanced social connection with natural areas. In North America, bluegill are one of the most important species in terms of providing accessible, harvest-oriented recreational fisheries. In Wisconsin, they are the most caught, most harvested, and second-most targeted
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Studying the Influence of Streamflow Variability on Fish Populations to Understand Nutrient Transport in Hawaiian and Alaskan Streams in a Changing Climate

Ecosystems spanning the zones from “ridge-to-reef" and “icefield-to-ocean” are home to relatively high levels of biodiversity; serve as conduits of nutrients to sensitive coastal environments; and are culturally and economically important to local communities. These systems are smaller and have unique geological and streamflow properties compared to more typical river systems and...
Studying the Influence of Streamflow Variability on Fish Populations to Understand Nutrient Transport in Hawaiian and Alaskan Streams in a Changing Climate

Studying the Influence of Streamflow Variability on Fish Populations to Understand Nutrient Transport in Hawaiian and Alaskan Streams in a Changing Climate

Ecosystems spanning the zones from “ridge-to-reef" and “icefield-to-ocean” are home to relatively high levels of biodiversity; serve as conduits of nutrients to sensitive coastal environments; and are culturally and economically important to local communities. These systems are smaller and have unique geological and streamflow properties compared to more typical river systems and, because of this
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The State of Climate Adaptation Science for Ecosystems in the Northwestern U.S.

Managing species and habitat in a changing climate requires locally specific information about expected changes in the physical environment, key stressors and related ecological changes. Federal investments have supported the development of a significant scientific knowledge base detailing potential future conditions for many Northwest ecosystem types and geographies. Yet scientists...
The State of Climate Adaptation Science for Ecosystems in the Northwestern U.S.

The State of Climate Adaptation Science for Ecosystems in the Northwestern U.S.

Managing species and habitat in a changing climate requires locally specific information about expected changes in the physical environment, key stressors and related ecological changes. Federal investments have supported the development of a significant scientific knowledge base detailing potential future conditions for many Northwest ecosystem types and geographies. Yet scientists, managers and
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Walleye Fisheries: Bright Spots in a Changing Climate

Habitat loss, pollution, species introductions, and overfishing have been impacting inland fisheries for decades. Climate change threatens to compound the factors that lead to fisheries decline. Walleye, an ecologically, economically and culturally important cool-water sportfish, have been declining in the Upper Great Lakes Region since the early 2000s. Yet while many inland walleye...
Walleye Fisheries: Bright Spots in a Changing Climate

Walleye Fisheries: Bright Spots in a Changing Climate

Habitat loss, pollution, species introductions, and overfishing have been impacting inland fisheries for decades. Climate change threatens to compound the factors that lead to fisheries decline. Walleye, an ecologically, economically and culturally important cool-water sportfish, have been declining in the Upper Great Lakes Region since the early 2000s. Yet while many inland walleye populations
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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...
Where the Creek Meets the Tide: Effects of Climate Change on Salmon, Homes, and Businesses, and the Squaxin Island Tribe

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
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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.
Webinar: Timing is Everything: How Fish and Wildlife are Responding to Climate Change Through Shifts in the Timing of Life Events

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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