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The distribution and abundance of small, schooling forage fish (e.g., sandlance, capelin) in Alaska is known from small-scale directed studies, but mostly inferred from incidental catches in large-scale trawl surveys that were not designed (by gear or location) to sample forage species. In contrast, seabirds are conspicuous, highly mobile, samplers of forage fish that go to great distances (100+ km) and depths ( 200m) to locate ephemeral prey with great efficiency. Thus, data on their dietary habits provides a valuable complement to traditional fisheries sampling. We propose to analyze large diet databases for three abundant seabirds (puffins, murres and kittiwakes) to: 1) characterize forage fish communities in...
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Topock Marsh is a large wetland adjacent to the Colorado River and main feature of Havasu National Wildlife Refuge (Havasu NWR) in southern Arizona. In 2010, U.S. Fish and Wildlife Service (FWS) and Bureau of Reclamation began a project to improve water management capabilities at Topock Marsh and protect habitats and species. Initial construction required a drawdown, which caused below-average inflows and water depths in 2010-2011. Co-applicants Daniels and Haegele of FORT monitored Topock Marsh during the drawdown and immediately after, thus obtained information on immediate effects. However, stress from the drawdown may have a delayed effect on aquatic resources; additionally, significant changes to the infrastructure...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2013, AZ-04, Applications and Tools, Arizona, CA-08, All tags...
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Building upon the successful efforts of SARP, Texas Parks and Wildlife Department (TPWD), and other federal, state, and local partners to establish and implement NFCAs in the Llano River watershed, TX and Chipola River watershed, FL (Birdsong et al., 2015, Garrett et al. 2015), we will coordinate a series of watershed-based conservation planning workshops focused on eight priority river systems in the Great Plains (i.e., the White River, Platte River, Arkansas-Kansas Rivers, Canadian River, Deep Fork River, Red River, Brazos River, and Colorado River). We will utilize conservation assessments and conservation planning tools recently developed by Labay and Henderickson (2014; http://repositories.lib.utexas.edu/handle/2152/27744)...
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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 communities further concerned, primarily because they do not know what to expect. Previously, the USGS, both Chickasaw and Choctaw Nations collaborated on a project to apply a range of possible climate change scenarios to the Red River watershed to determine future water availability. This study will focus specifically on southeast...
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Ensuring the long-term sustainability of water resources requires careful stewardship of water for societal uses (i.e. municipal, agricultural, and industrial sectors) and also for the many other benefits that aquatic ecosystems provide to humans. In particular, reservoir fisheries and river ecosystems provide a range of economic, cultural, and recreational benefits. Maximizing the benefits that we receive from water will entail balancing societal uses, reservoir storage, and river flows. Climate change is expected to complicate the challenge of finding a balance among these three dimensions of water sustainability. To navigate these challenges, stakeholders need frameworks for simultaneously predicting the...
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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 reverse their decline. Although work is being done to understand and mitigate these changes, the ability to accurately assess vulnerability is currently limited due to a lack of data-driven approaches that incorporate uncertainty and adaptive capacity at scales relevant to effective management. USGS researchers will...
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Coastal rivers draining into the Gulf of Maine are home to the endangered Gulf of Maine Distinct Population Segment of Atlantic salmon. The Gulf of Maine population began to decline significantly by the late 19th century, leading to the closure of the commercial Atlantic salmon fishery in 1948. In recent years, populations have again begun to decrease again. State and federal fisheries biologists are concerned that climate-related changes in streamflow and temperature could impact salmon survival in these rivers. Projections of future climate conditions for the Northeast indicate warming air temperatures, earlier snowmelt runoff, and decreases in streamflow during the low flow period (summer). In the spring, snow...
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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. Thailand has recently faced historic water shortages and severe drought. Upstream hydropower development in China and Laos, climate change, a year of unusually little rainfall, and historically low and unpredictable Mekong River basin levels may all contribute to the historic water shortages Climate projections suggest increasing...
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Recent changes in climate are having profound effects on many fish and wildlife species, and projections suggest that those trends are likely to continue. Changing climate conditions have the potential to transform ecosystems, which impacts not only fish and wildlife but also human communities, which rely on ecosystems for important goods and services such as food and water filtration. Strategies that are implemented by natural resource managers now have the potential to help minimize the impacts of changing climate conditions on species and ecosystems going forward. However, substantial knowledge gaps remain regarding how species might respond to changes in climate, such as whether these changes will lead to ecosystem...
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Global change processes are producing shifts in temperature, precipitation, and seasonal streamflow regimes across North America. Much of the floodplain hydrology in the U.S. is managed through water control operations, often implemented on short time scales (e.g., weekly decisions), in response to short-term changes in precipitation. This operational model does not account for potential long-term trends, such as increased recurrence or shifts in seasonal timing of high flow events within a year. Therefore, polices that only focus on short-time scales and recent historic conditions may not perform as well under altered climate regimes. This uncertainty in future floodplain conditions is concerning for a variety...
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The number of fish collected in routine monitoring surveys often varies from year to year, from lake to lake, and from location to location within a lake. Although some variability in fish catches is expected across factors such as location and season, we know less about how large-scale disturbances like climate change will influence population variability. The Laurentian Great Lakes in North America are the largest group of freshwater lakes in the world, and they have experienced major changes due to fluctuations in pollution and nutrient loadings, exploitation of natural resources, introductions of non-native species, and shifting climatic patterns. In this project, we analyzed established long-term data about...
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Every 10 years, state fish and wildlife management agencies must comprehensively review, and if necessary revise, their State Wildlife Action Plans (SWAPs). These are important planning documents that serve as blueprints for conserving fish, wildlife, and their habitat, and for preventing species listings in each state. These plans focus on species that have been identified as being of greatest conservation need, but also address the full array of wildlife and wildlife-related issues in a state. States last reviewed and revised their SWAPs in 2015, and will do so again in 2025. In 2016-2017, the Northeast Association of Fish and Wildlife Agencies (NEAFWA) synthesized the 14 SWAP reports from the Northeast region....
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As freshwater streams and native fish are threatened by changing environmental conditions, efforts to coalesce existing data and integrate modeling and projection tools are increasingly necessary for informing effective land, water, and species management. For example, identifying and integrating disparate datasets of streamflow, stream water temperature and species distribution is critical for development of statistical models that inform comprehensive, multi-species climate vulnerability assessments to help managers plan for the future. Regional assessments of the vulnerability of native fishes to climate change in the Pacific Northwest have focused almost exclusively on salmonids (a family of fish that includes...
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In the Gulf of Alaska, streams will experience more dramatic low water events, interspersed with larger and potentially more frequent high flow events in the coming decades. Reduced stream flows are likely to occur due to diminished snowpack and seasonal droughts, while higher flow events are likely to occur with more frequent storms and rain-on-snow events. These changes are likely to influence the growth trajectories of juvenile salmon, such as coho salmon and chinook salmon, that live up to two years in freshwater before migrating to the ocean. Stream flows can influence juvenile salmon growth by modifying food availability, water clarity, temperature, and predation risk. This high-resolution study examines...
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The Jamestown SKlallam and Port Gamble SKlallam tribes, and many other tribes in the PacificNorthwest, rely on ESA listed fish species for subsistence as well as cultural and economic practices.Concern has grown over the impacts climate change might have throughout the 21st Century ontraditional fishing areas. We will employ well validated hydrological numerical modeling methodologiesto project streamflow changes in five major fish-bearing streams and their tributaries in the NorthwestOlympic Peninsula in Washington State. Results from this study will be made available to tribal leadersand natural resource managers for planning purposes and to assess potential freshwater habitatvulnerability under a variety of plausible...
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Yellow perch and alewife are ecologically, economically, and culturally important fish species in Lake Michigan whose populations support recreational and commercial fisheries. However, both of these species’ populations have been in decline for over 20 years. This project seeks to understand the factors affecting variability in offspring survival of yellow perch and alewife in Lake Michigan in order to project survival under scenarios of future climate change. Like other fish species, yellow perch and alewives produce huge numbers of small offspring, but most die early in life. Small changes in survival at this early stage can have a strong impact on the number of fish that ultimately contribute to fisheries....
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Pacific salmon need cold water and quality habitat to survive. As climate change continues to increase river temperatures, effective methods to restore cool-water refuges and logjam habitats need to be determined. Many salmon habitat restoration projects in the Pacific Northwest have built engineered logjams (ELJs) to create deep, cool pools and reconnect rivers to floodplains to replenish cool groundwater. However, the success of these projects is not often studied. This project will study restoration effectiveness in helping salmon adapt to climate change so that this once-abundant resource can continue to enrich the local culture, economy, and environment. The Lummi Nation and Nooksack Tribe’s cultural and...
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Stream fish are in peril from a changing climate, particularly for species with restricted distributions or populations on the southern edge of their range. For these fish, the opportunity to escape warming temperatures is limited by the network of stream channels accessible to them. To deal with temperatures beyond their physical capacity, fishes must move, adapt, or die. However, little is known for many of these species about their preferred temperatures, critical temperature limits, or capacity to adapt to or tolerate increasing temperatures. Researchers will measure the preferred temperatures and tolerance of two stream fish that are vulnerable to climate change: the Ozark Shiner and the Blacknose Shiner. The...
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Inland fisheries have tremendous cultural, economic, and subsistence value. However, climate change brings new stresses to land-locked fisheries that raise novel challenges for resource managers. One fundamental challenge in inland fisheries is how to best assess and manage data-limited fisheries when resources are finite and uncertainty is pervasive. To address this challenge, we will use quantitative models to examine whether indicators of fish population status commonly-measured by managers can serve as a “short-cut” to more data- and capacity-intensive approaches. Further, we will work and communicate directly with state and Tribal fisheries managers to better understand the challenges they face when making...
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The bull trout, listed as threatened under the Endangered Species Act, is well adapted to the cold waters of the Northwest. Recent changes in climate have caused winter flooding and warmer summer water temperatures in the region, reducing the cold-water habitats that bull trout depend on. The southernmost bull trout populations, found in Oregon, Washington, Idaho, Montana, and Nevada, are currently restricted to small reserves where the coldest waters still exist. These shrinking habitats have created a severed environment being further split by dams, poor water quality, and invasive species. The goal of this project was to determine how these factors threaten the species regionally by using predictions of stream...
map background search result map search result map Impact of Changes in Streamflow and Temperature on Endangered Atlantic Salmon Rangewide Climate Vulnerability Assessment for Threatened Bull Trout Understanding the Varying Responses of Fish Populations to Future Climate Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Watershed-Based Conservation Planning to Inform Selection and Implementation of a Network of Native Fish Conservation Areas in the Great Plains Evaluation of Sustainable Water Availability in Drought Prone Watersheds in Southeastern Oklahoma Modeling the Effects of Climate Change on Fish-bearing Streams in Western Washington Assessing Climate Change Threats and Adaptation Strategies in Northeast State Wildlife Action Plans State of the Science on Ecosystem Transformation Assessing the Vulnerability of Native Trout in the Northern Rockies: Linking Science and Management for Climate Adaptation Understanding and Forecasting Potential Recruitment of Lake Michigan Fishes Linking Stream Fish Thermal Ecology and Adaptive Capacity to Inform Watershed-Based Management and Species Status Assessments Development of a Streamflow Data Catalog and Evaluation of the Vulnerability of Sensitive Fish Species to Climate Change Across the Pacific Northwest The Influence of Stream Flow Patterns on Juvenile Salmon Growth in Southeast Alaska Informing Mekong River Basin Resiliency and Climate Adaptation Enhancing a Spatial Planning Tool to Inform Management of Reservoir Fisheries, Stream Flows, and Societal Water Needs in the Red River Water, Water Everywhere: Adapting Water Control Operations and Floodplain Conservation Planning to Global Change South Fork Nooksack River Engineered Logjam Effectiveness Project: Are Engineered Logjams Creating Cool-Water Refuges for Pacific Salmon on a Thermally Impaired River? Climate Adaptation for Data-Limited Inland Fisheries Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Water, Water Everywhere: Adapting Water Control Operations and Floodplain Conservation Planning to Global Change Modeling the Effects of Climate Change on Fish-bearing Streams in Western Washington South Fork Nooksack River Engineered Logjam Effectiveness Project: Are Engineered Logjams Creating Cool-Water Refuges for Pacific Salmon on a Thermally Impaired River? Impact of Changes in Streamflow and Temperature on Endangered Atlantic Salmon Evaluation of Sustainable Water Availability in Drought Prone Watersheds in Southeastern Oklahoma Linking Stream Fish Thermal Ecology and Adaptive Capacity to Inform Watershed-Based Management and Species Status Assessments Development of a Streamflow Data Catalog and Evaluation of the Vulnerability of Sensitive Fish Species to Climate Change Across the Pacific Northwest Assessing the Vulnerability of Native Trout in the Northern Rockies: Linking Science and Management for Climate Adaptation Rangewide Climate Vulnerability Assessment for Threatened Bull Trout Watershed-Based Conservation Planning to Inform Selection and Implementation of a Network of Native Fish Conservation Areas in the Great Plains Climate Adaptation for Data-Limited Inland Fisheries Understanding and Forecasting Potential Recruitment of Lake Michigan Fishes Informing Mekong River Basin Resiliency and Climate Adaptation Enhancing a Spatial Planning Tool to Inform Management of Reservoir Fisheries, Stream Flows, and Societal Water Needs in the Red River Assessing Climate Change Threats and Adaptation Strategies in Northeast State Wildlife Action Plans Understanding the Varying Responses of Fish Populations to Future Climate The Influence of Stream Flow Patterns on Juvenile Salmon Growth in Southeast Alaska State of the Science on Ecosystem Transformation