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Filters: Tags: Rivers, Streams and Lakes (X) > partyWithName: Climate Adaptation Science Centers (CASC) Program (X) > Types: Map Service (X)

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Estimates of water flows in streams are critical to inform natural resource managers of water availability for both human and ecological needs. Monitoring flow in the stream using a streamgage provides information about the amount and timing of surface water resources. However, not every stream has a streamgage and decisions about water resources may need to be made in a watershed where there is no flow information. Hydrologic models can be used to provide estimates of streamflow in the absence of streamflow information. These models depend upon available streamflow data for calibration, and can be very inaccurate without the use of those data. This research developed a method to group watersheds that are gaged...
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This project identifies opportunities to manage flows, connections, and landscapes to increase the resilience of human communities and ecosystems. This research identifies dynamic and adaptive solutions to managing river flows that allow continued provision of valuable infrastructure services such as flood control, hydropower, and water supply, while also supporting thriving river ecosystems - both today and into the future. The goals of the research were to: 1) Evaluate the potential impacts of climate change on hydrologic regimes, 2) Determine the flow regime changes that will be required to provide riverine environmental services and any risk associated with these changes, and 3) Explore management alternatives...
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What will the rivers of the Pacific Northwest look like in the future? Will they be stable or unstable? Will the waters be cold and clear or warm and muddy? Will they have salmon or other species? These questions motivated our two-year study of climate warming effects on headwater streams draining the Cascade Mountains. Using a novel combination of snow, geohydrology, and sediment transport models we assessed the vulnerability of stream channels to changing peak streamflow. Our snow modeling shows that with just a 2°C warming, snowfall shifts to rainfall at all elevations, peak snowpacks occur over two months earlier, and snowpacks are reduced by over half of historical values. Our geohydrology modeling shows that...
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Many Midwestern lakes are experiencing warming water temperatures as a result of climate change. In general, this change is causing coldwater fish species such as cisco and coolwater species such as walleye to decline. Meanwhile, warmer water species such as largemouth and smallmouth bass are increasing as temperatures warm. However, some fish populations are more vulnerable to these changes than others. This divergence could be the result of interactions between climate and habitat conditions, or as a result of interactions among fish species. For example, walleye responses to warming temperatures could vary depending on the abundance of largemouth bass. The goal of this project is to quantify the responses of...
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Stocking, or raising fish in hatcheries and releasing them into a body of water, is routinely used to supplement or maintain fisheries when natural populations are low or nonexistent. Demand for stocking cool and coldwater fish species that support important fisheries will likely increase as a result of climate change, but fish available for stocking are a limited resource. Consequently, climate change will likely affect supply-and-demand tradeoffs associated with stocking fish in the future, where demand for fish is likely to exceed supply. Researchers will examine supply-and-demand tradeoffs using walleye, which represent an ideal species for this assessment because they are a native coolwater species supporting...
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Oregon’s Upper Klamath Basin is one of the warmest watersheds in the Pacific Northwest. Despite its naturally warm waters, the basin supports abundant redband trout. These are some of the largest-bodied trout in the entire U.S., and are a culturally and economically important species, providing the last remaining subsistence fishery for the Klamath Tribes and drawing recreational anglers. The ability of this coldwater species to survive in one of the region’s warmest watersheds could hold valuable clues for conservation in the face of warming global temperatures, which represents one of the biggest threats to North America’s coldwater fish. Previous research has found that redband trout rely heavily on spring-fed...
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The Colorado River provides water to 40 million people in the southwestern United States. Consistent water level declines in Colorado River Basin reservoirs have focused research attention on the long-term changes in winter precipitation and the timing of snowmelt and runoff. Research on how warming temperatures affect winter precipitation and spring snowmelt is ongoing, however, less attention has been given to changes in spring and summer precipitation which also affects water supply, plant growth, and competition between native and non-native plants, and, in turn affects wildfire dynamics and wildlife habitat. The amount and timing of summer precipitation is largely influenced by variation in the North American...
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Water is a key resource in Alaska: Although it comprises 17 percent of the country’s land area, Alaska contains more than 40 percent of the United States’ surface water. Climate changes are anticipated to greatly impact water processes (hydrology), including water temperature and seasonal precipitation patterns and amounts. Understanding the likely impacts of climate change on hydrology is an important first step toward understanding consequent impacts on natural and human communities. The purpose of this project was to assist with the development of a coordinated state-wide approach for monitoring temperature in streams and lakes. This process was guided by the recommendations of a workshop involving hydrologists,...
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HawaiÊ»i’s native forest birds are known worldwide for their diversity and beauty. Unfortunately, many species are heading towards extinction because of bird malaria spread by mosquitoes introduced over a century ago. Remaining populations of these highly threatened forest birds tend to be at high elevations near the tree line on mountains, where cooler temperatures limit mosquitoes and malaria development. With rising temperatures in those upslope areas due to climate change, mosquitoes and disease are starting to be found at higher elevations. In addition to warming temperatures, increasingly dry conditions change stream flow allowing for the creation of pools that provide additional larval mosquito habitat in...
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Fisheries and aquatic habitats throughout the United States are in dire need of protection or restoration because human activities have resulted in severe degradation of those habitats. Further, future climatic changes will continue to affect human land-use, temperature, and water flows. Natural resource managers need to identify and prioritize habitats so that limited time and funding can be focused on habitats that are in most need of protection both now and in the future, based on projected climate changes. This project was comprised of a team of scientists from the US Geological Survey, Kansas State University, Michigan State University, Penn State University, the University of Minnesota-Duluth, the University...
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USGS researchers assessed how climate change can affect land cover and flow in river systems, examining a variety of resolutions for detecting and projecting the conditions of aquatic habitats and species.
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The Southeastern United States spans a broad range of physiographic settings and maintains exceptionally high levels of faunal diversity. Unfortunately, many of these ecosystems are increasingly under threat due to rapid human development, and management agencies are increasingly aware of the potential effects that climate change will have on these ecosystems. Natural resource managers and conservation planners can be effective at preserving ecosystems in the face of these stressors only if they can adapt current conservation efforts to increase the overall resilience of the system. Climate change, in particular, challenges many of the basic assumptions used by conservation planners and managers. Previous conservation...
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Fisheries in the glacial lakes region of the upper Midwest are culturally, economically, and recreationally beneficial. Walleye, for instance, represent an important subsistence food source for some Wisconsin tribal nations and are also popular among recreational anglers. However, predicted ecological changes to these aquatic communities, such as an increase in invasive fish species, a decrease in walleye and other native fishes, and worsening water quality due to increases in temperature and shifts in precipitation, has prompted concern among regional anglers who may abandon certain fisheries as these changes occur. Understanding how changes in climate may affect glacial lakes region fishes, and how fishery managers...
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Freshwater ecosystems support the health and well-being of human life and society through a myriad of services. Intact freshwater biodiversity maintains the health of freshwater ecosystems and the benefits they provide. However, staggering rates of freshwater biodiversity loss and declining ecological function of freshwater ecosystems threaten these natural benefits and human life. This project supports international collaborations to increase awareness and relevant and actionable biodiversity information to support decision makers address freshwater biodiversity loss.
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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 communities in streams, rivers, and lakes may have the natural ability to resist the long-term impacts of extreme weather events. In this project, researchers will investigate the ability of Caribbean fish assemblages in Puerto Rico, which have both economic and cultural importance, to resist the impacts of extreme weather events....
map background search result map search result map Science to Inform Future Management of the Nation's Fisheries and Aquatic Habitat Climate Change and Peak Flows: Informing Managers About Future Impacts to Streamflow Dynamics and Aquatic Habitat SERAP: The Effects of Climate Change on Aquatic Species and Habitat in the Southeast Southeast Regional Assessment Project (SERAP): Assessing Global Change Impacts on Natural and Human Systems in the Southeast Science to Inform the Reconnection of Floodplains and Restoration of Green Space to Minimize Risk in the Future Estimating Future Water Availability and Streamflow in the Southeast Monitoring Alaska Stream and Lake Temperatures to Understand Future Conditions Impacts of Global Change on Biotic Resistance, Resilience, and Ecosystem Services in Caribbean Fish Assemblages, Fisheries, and Aquatic Ecosystems Developing Adaptation Strategies for Recreational and Tribal Fisheries in the Upper Midwest How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River Fish Habitat Restoration to Promote Adaptation: Resilience of Sport Fish in Lakes of the Upper Midwest Supply-and-Demand Dynamics Associated with Using Stocking to Maintain Walleye Fisheries in the Face of Climate Change Predicting and Mitigating the Threat of Avian Disease to Forest Birds at Hakalau Forest National Wildlife Refuge Freshwater Biodiversity with Global Change Understanding the Effects of Seasonal Precipitation Changes on Hydrology and Ecosystems in the Colorado River Basin Predicting and Mitigating the Threat of Avian Disease to Forest Birds at Hakalau Forest National Wildlife Refuge How Will Coldwater Fish Survive in a Warming Future? Identifying Life-Stage Specific Use of Coldwater Refugia in the Klamath Basin and Willamette River SERAP: The Effects of Climate Change on Aquatic Species and Habitat in the Southeast Science to Inform the Reconnection of Floodplains and Restoration of Green Space to Minimize Risk in the Future Climate Change and Peak Flows: Informing Managers About Future Impacts to Streamflow Dynamics and Aquatic Habitat Developing Adaptation Strategies for Recreational and Tribal Fisheries in the Upper Midwest Fish Habitat Restoration to Promote Adaptation: Resilience of Sport Fish in Lakes of the Upper Midwest Understanding the Effects of Seasonal Precipitation Changes on Hydrology and Ecosystems in the Colorado River Basin Estimating Future Water Availability and Streamflow in the Southeast Southeast Regional Assessment Project (SERAP): Assessing Global Change Impacts on Natural and Human Systems in the Southeast Supply-and-Demand Dynamics Associated with Using Stocking to Maintain Walleye Fisheries in the Face of Climate Change Science to Inform Future Management of the Nation's Fisheries and Aquatic Habitat Monitoring Alaska Stream and Lake Temperatures to Understand Future Conditions Freshwater Biodiversity with Global Change