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The Stream Continuity Portal
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This aquatic connectivity portal is a one-stop shop for tools and regional collaboratives focused on aquatic organism passage (“fish passage”) and fragmentation of river and stream ecosystems. It is a starting place for stakeholders, users, and tool developers looking to keep track of the latest initiatives and better identify opportunities for collaboration and action. This portal is maintained by the North Atlantic Aquatic Connectivity Collaborative (NAACC). More coming soon!
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Resources
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Upload New Resources
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Aquatic Conservation Opportunity Areas
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The Southeast Aquatic Resources Partnership (SARP) developed coastal and inland datasets to identify and track aquatic Conservation Opportunity Areas (COAs) in the Southeast. They are available to practitioners and the public.
The spatial datasets can aid in planning aquatic and riparian conservation efforts and can determine qualification for SARP restoration funds.
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Apps, Maps, & Data
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Landscape Partnership Spatial Datasets
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Aquatic and Freshwater Spatial Data
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Southeast Aquatic Barrier Prioritization Tool
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The Southeast Aquatic Barrier Prioritization Tool aims to build aquatic connectivity in rivers and streams. The Tool provides inventory data on aquatic barriers (like dams and road-related culverts) and helps practitioners to describe, understand, and prioritize these barriers for removal, restoration, and mitigation.
Aquatic connectivity in rivers and streams is essential for fish and other aquatic organisms.
The Southeast Aquatic Resources Partnership (SARP) developed the tool with support from partners and funders.
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Apps, Maps, & Data
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Landscape Partnership Spatial Datasets
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Aquatic and Freshwater Spatial Data
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Floodplain Prioritization Tool
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The Floodplain Prioritization Tool helps decision-makers identify critical opportunities for floodplain protection and restoration in the Mississippi River Basin. It is an interactive, web-based mapping tool.
Users can prioritize different criteria (e.g., water quality, wildlife habitat, and human exposure to flooding) on the map to see where floodplain restoration and conservation is likely to have the greatest impact. Developed by The Nature Conservancy and partners.
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Apps, Maps, & Data
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Landscape Partnership Spatial Datasets
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Aquatic and Freshwater Spatial Data
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North Atlantic Aquatic Connectivity Collaborative
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The North Atlantic Aquatic Connectivity Collaborative (NAACC) is a network of individuals from agencies and organizations focused on improving aquatic connectivity across a thirteen-state region.
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LP Members
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Organizations Search
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The Wetland Trust
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The Wetland Trust protects and restores wetlands and unique wetland biodiversity in New York with special interest in amphibians and reptiles (herpetofauna). The Trust presently owns 26 properties covering 1,600 wetland acres.
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LP Members
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Organizations Search
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Upper Tennessee River Basin Strategy Communications Subteam - March 2016 Call
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Notes from the Upper Tennessee River Basin Strategy Communications subteam call on March 7, 2016.
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Team and Partner Workspace
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Communications
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Global separation of plant transpiration from groundwater and streamflow
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Current land surface models assume that groundwater, streamflow and plant transpiration are all sourced and mediated by the same well mixed water reservoir—the soil. However, recent work in Oregon1 and Mexico2 has shown evidence of ecohydrological sepa- ration, whereby different subsurface compartmentalized pools of water supply either plant transpiration fluxes or the combined fluxes of groundwater and streamflow. These findings have not yet been widely tested. Here we use hydrogen and oxygen isotopic data (2H/1H (d2H) and 18O/16O (d18O)) from 47 globally distrib- uted sites to show that ecohydrological separation is widespread across different biomes. Precipitation, stream water and ground- water from each site plot approximately along the d2H/d18O slope of local precipitation inputs. But soil and plant xylem waters extracted from the 47 sites all plot below the local stream water and groundwater on the meteoric water line, suggesting that plants use soil water that does not itself contribute to groundwater recharge or streamflow. Our results further show that, at 80% of the sites, the precipitation that supplies groundwater recharge and streamflow is different from the water that supplies parts of soil water recharge and plant transpiration. The ubiquity of subsurface water compartmentalization found here, and the segregation of storm types relative to hydrological and ecological fluxes, may be used to improve numerical simulations of runoff generation, stream water transit time and evaporation–transpiration partitioning. Future land surface model parameterizations should be closely examined for how vegetation, groundwater recharge and streamflow are assumed to be coupled.
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Resources
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Climate Science Documents
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Downstream Warming and Headwater Acidity May Diminish Coldwater Habitat in Southern Appalachian Mountain Streams
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Stream-dwelling species in the U.S. southern Appalachian Mountains region are particularly vulnerable to climate change and acidification. The objectives of this study were to quantify the spatial extent of contemporary suitable habitat for acid- and thermally sensitive aquatic species and to forecast future habitat loss resulting from expected temperature increases on national forest lands in the southern Appalachian Mountain region. The goal of this study was to help watershed managers identify and assess stream reaches that are potentially vulnerable to warming, acidification, or both. To our knowledge, these results represent the first regional assessment of aquatic habitat suitability with respect to the combined effects of stream water temperature and acid-base status in the United States. Statistical models were developed to predict July mean daily maximum water temperatures and air-water tem- perature relations to determine potential changes in future stream water temperatures. The length of stream considered suitable habitat for acid- and thermally sensitive species, based on temperature and acid neutralizing capacity thresholds of 20°C and 50 μeq/L, was variable throughout the national forests considered. Stream length displaying temperature above 20°C was generally more than five times greater than the length predicted to have acid neutralizing capacity below 50 μeq/L. It was uncommon for these two stressors to occur within the same stream segment. Results suggested that species’ distributional shifts to colder, higher elevation habitats under a warming climate can be constrained by acidification of headwater streams. The approach used in this study can be applied to evaluate climate change impacts to stream water resources in other regions.
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Resources
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Climate Science Documents
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Sour Streams in Appalachia: Mapping Nature’s Buffer Against Sulfur Deposition
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Sulfur emissions are regulated by the Environmental Protection Agency, but sulfuric acid that has
leached into soil and streams can linger in the environment and harm vegetation and aquatic life. Some
watersheds are better able to buffer streams against acidification than others; scientists learned why in
southern Appalachia.
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Resources
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Climate Science Documents
