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Curran, Joanna
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Expertise Search
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Stream & Watershed Restoration Design & Implementation Workshop
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Participants will learn about developing and implementing stream and watershed restoration programs at the district level. Restoration in watershed analysis context, and effective stream restoration programs will also be covered. Scheduled for May 2023, pending COVID.
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Training
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The Last Dragons - Protecting Appalachia's Hellbenders
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An intimate glimpse at North America's Eastern Hellbender, an ancient salamander that lives as much in myth as in reality.... and in many waters, myths are all that remain of these sentinel stream-dwellers. Video by Freshwaters Illustrated.
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Online Training Resources
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Webinars and Videos
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Full Proposal - A Stream Classification System for the Appalachian Landscape Conservation Cooperative
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The goal of this project is to develop a hierarchical classification for stream and river systems within the Appalachian Landscape Conservation Cooperative (LCC). This classification system will identify and consistently map ecologically similar types of rivers and streams using a flexible hierarchical set of geomorphic and hydrologic variables deemed appropriate for classification by the participating states and relevant to the spatial scale of management.
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LP Members
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Aquatic Habitat Stream Classification Team
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Background Project and Member Information
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Stream channel geomorphology influences mussel abundance in southern Appalachian streams, U.S.A.
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We quantified freshwater mussel abundance and species richness and their physical habitat at 24 sites in eight streams in southern Appalachian catchments in 2000 and 2001. In addition, we modelled site-specific hydraulic parameters during summer baseflow and bankfull stages to estimate high- and low-discharge conditions, respectively.
Mussel abundance was related to stream geomorphology, whereas richness was related to stream size. Baseflow habitat parameters explained only minor variation in abundance or richness, and both measures were highly correlated with mean current velocity or stream size. Bankfull shear stress composed a relatively low proportion of overall mussel habitat variability, but it accounted for significant variation in abundance and richness. Mussel abundance was highly variable at sites subject to low-shear stress during spates, whereas abundance always was low at sites subject to high-shear stress. These data suggest that habitat conditions during floods, rather than those at summer baseflow, limit the abundance of mussels in Appalachian streams. These data also suggest that mussel abundance and assemblage structure may be sensitive to any changes in channel geomorphology and hydraulic conditions that might result from land use in the catchment.
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Resources
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General Resources Holdings
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Freshwater Mussels of the Powell River, Virginia and Tennessee: Abundance and Distribution in a Biodiversity Hotspot
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Historically, the Powell River had a diverse freshwater mussel fauna of 46 species. Various surveys conducted over the past century have recorded a decline in mussel densities and diversity throughout much of the river, due to historical and on-going anthropogenic impacts. In 2008 and 2009, random timed-search, systematic search, and quadrat sampling of 21 sites were completed to document species richness, relative abundance, density, and size-class structure of resident mussel populations. We recorded 19 species from 18 sites, including 5 endangered species during quadrat sampling efforts. he mussel fauna of the lower Powell River continues to represent one of the most diverse in the United States. Outside of the Powell River, only 2 or 3 populations remain for most of the listed species extant in the river. Given these qualities, the Powell River deserves recognition as a location for focused conservation efforts to protect its diverse mussel assemblage.
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Resources
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General Resources Holdings
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Connect the Connecticut
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Encompassing New England’s largest river system, the Connecticut River watershed provides important habitat for a diversity of fish, wildlife and plants — from iconic species like bald eagle and black bear to federally threatened and endangered species like shortnose sturgeon, piping plover, and dwarf wedgemussel.
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Resources
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Your Drop Matters
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Just forty-five years ago, rivers in the U.S. were so polluted that some actually burned. In response, our country created the Clean Water Act amid other strong environmental legislation. Today, two-thirds of our population has never known a time when clean water wasn’t readily available. Despite improvements in the quality of drinking water, freshwater animals and habitats in the southeastern U.S. remain among the most imperiled on Earth. We have become complacent with institutional protections and haven’t challenged our personal behaviors. How can we solve the freshwater crisis starting in our own backyard? Video by TEDxChattanooga.
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Training
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Videos and Webinars
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N.C. Wildlife Resources Commission’s Whirling Disease Response Plan
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On July 27, 2015, whirling disease was confirmed in rainbow trout collected from Watauga River in Watauga County– the first occurrence of the disease in North Carolina. Whirling disease affects fish in the trout and salmon family with rainbow and brook trout, two species found in North Carolina waters, being the most susceptible. The disease, caused by the microscopic parasite Myxobolus cerebralis, damages cartilage and skeletal tissue in trout, causing them to swim in a whirling motion.
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Training
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Videos and Webinars
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Rescuing Barrens Topminnows During A Drought
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Dr. Bernie Kuhajda in the field discussing the plight of the endangered Barrens Topminnow as an important population threatened by drought conditions. Video by the Tennessee Aquarium.
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Training
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Videos and Webinars
