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Filters: Types: OGC WMS Service (X) > partyWithName: Benjamin Letcher (X)

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Cold-water adapted Brook Trout were historically widely distributed – ranging from northern Quebec to Georgia, and from the Atlantic Ocean to Manitoba in the north, and along the Appalachian ridge in the south. However, studies show that due to factors associated with climate change, such as increased stream temperature and changing water flow, the number of streams containing Brook Trout is declining. Although efforts have been made to protect and restore this cold-water fish at local levels, the extent that temperature increases will vary within and across different streams and the ability of Brook Trout to seek cold-water refugia or adapt to these increasing stream temperatures currently remains unclear. The...
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The headwaters of the Columbia River Basin in the Northern Rocky Mountains region is widely recognized as a stronghold for native fish, containing some of the last remaining connected cold-water habitats for species such as the threatened bull trout and native westslope cutthroat trout. However, as temperatures rise, non-native invasive fish species could be poised to prosper in the region as conditions start to favor warm-water species over those that require cooler waters to thrive. The spread of invasive fish species has the potential to devastate native fish populations, stream habitats, and the local cultures and economies that depend on healthy aquatic ecosystems – including the region’s multi-billion dollar...
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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-water species even further. Recent studies show that there is much site-to-site variation in how climate affects stream temperature and flow. Therefore, vulnerability of local trout populations to climate change also varies. Understanding local variation in climate responses across the region is critical to maintaining...
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Water temperatures affect the distribution, growth potential, and productivity of stream fishes that are targeted in subsistence, sport, and commercial fisheries across Alaska, making stream and lake temperature data critical for managing freshwater resources. Evaluating the variation in temperatures across Alaska will improve understanding of impacts of both climate change and development on freshwater habitats. However, collection and dissemination of water temperature data is an ongoing challenge across Alaska. To address this challenge, the research team will increase cooperation and coordination among data collectors in Interior Alaska by conducting an in-person stream temperature trainingand adapting the...
    map background search result map search result map Predicting Climate-Induced Expansions of Invasive Fish in the Pacific Northwest: Implications for Climate Adaptation of Native Salmon and Trout Understanding Brook Trout Persistence in Warming Streams Brook Trout Population Responses to Climate Variation Across the Southeast USA Enhancing Water Temperature Monitoring Efforts across Alaska through Collaborative Leveraging of a Statewide Database Understanding Brook Trout Persistence in Warming Streams Brook Trout Population Responses to Climate Variation Across the Southeast USA Predicting Climate-Induced Expansions of Invasive Fish in the Pacific Northwest: Implications for Climate Adaptation of Native Salmon and Trout Enhancing Water Temperature Monitoring Efforts across Alaska through Collaborative Leveraging of a Statewide Database