Item talk:Q227400

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 "url": "https://www.usgs.gov/centers/columbia-environmental-research-center/science/physical-stream-dynamics-and-native-mussel",
 "headline": "Physical Stream Dynamics and Native Mussel Habitats",
 "datePublished": "February 9, 2022",
 "author": [
   {
     "@type": "Person",
     "name": "Brandon Sansom, PhD",
     "url": "https://www.usgs.gov/staff-profiles/brandon-sansom",
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     "@type": "Person",
     "name": "Maura Roberts",
     "url": "https://www.usgs.gov/staff-profiles/maura-roberts",
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   {
     "@type": "Person",
     "name": "Ty Helmuth",
     "url": "https://www.usgs.gov/staff-profiles/ty-helmuth"
   }
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 "description": [
   {
     "@type": "TextObject",
     "text": "Addressing the Issue: CERC scientists use a multidisciplinary approach to characterize and quantify mussel bed stability and physical habitat conditions. Site bathymetry is mapped (Fig. 1) using RTK-GPS, a single-beam sonar, lidar, and sidescan sonar, and river hydraulics are characterized with an acoustic doppler current profiler. The movement of rocks and mussels in and around mussel beds is monitored using radio frequency identification (RFID) and accelerometer technology to track live mussels, sediment, and surrogate mussels (Fig. 2). This information is used to develop high-resolution habitat maps and hydraulic models, which provide quantitative information on what constitutes suitable mussel habitat. Mussel habitat study locations include the Big, Jacks Fork, Current, Big Piney, and Osage Rivers in Missouri, the Buffalo River in Arkansas, and the Clinch River in Tennessee."
   },
   {
     "@type": "TextObject",
     "text": "Next Steps: High-resolution habitat maps and hydraulic models will help predict the timing and location of sediment and mussel movement within and around mussel beds, which will be validated by direct observations of movement of rocks and mussels (Fig. 3). This approach will improve understanding of what constitutes suitable mussel habitat and what riverbed instability means to mussel survival, thereby informing optimal locations for mussel restoration and reintroduction efforts. Moreover, the methods and physical habitat characterization developed by CERC scientists will be highly transferable to other rivers with mussel communities and will inform broader mussel conservation strategies."
   },
   {
     "@type": "TextObject",
     "text": "Return to Threatened and Endangered Species"
   },
   {
     "@type": "TextObject",
     "text": "Return to Riverine Habitat Dynamics"
   },
   {
     "@type": "TextObject",
     "text": "Broader Implications: While high-resolution habitat maps, hydraulic models, and RFID tracer studies will improve understanding of optimal mussel habitat, these tools can also aid wildlife managers in a number of additional applications. For example, climate change is expected to lead to increases in the frequency and intensity of extreme precipitation and flow events, which may further exacerbate stress on mussel communities. The methods developed by CERC scientists can be applied to better understand how mussels respond to more frequent and intense flow events and help inform mussel conservation strategies in light of a changing climate. Another example is the emergence of environmental DNA (eDNA) as a tool to monitor species distribution and abundance. Hydraulic models developed by CERC scientists are being used to predict the fate and transport of native and endangered freshwater mussel eDNA. Additionally, the tagging and tracking of live mussels provides a robust temporal and spatial dataset for malacologists and can aid in on-going mussel monitoring efforts."
   },
   {
     "@type": "TextObject",
     "text": "Return to River Studies"
   },
   {
     "@type": "TextObject",
     "text": "Freshwater mussel conservation efforts depend on identifying habitat characteristics that are suitable for mussel reintroduction and restoration. CERC scientists are conducting research to understand how physical habitat dynamics affect the distribution of mussels and suitable habitat in streams and rivers."
   },
   {
     "@type": "TextObject",
     "text": "The Issue: Freshwater mussels are among the world\u2019s most imperiled species. Mussels are long-lived, sessile benthic organisms that are commonly found in aggregates known as mussel beds. Mussel beds often consist of several species of mussels and multiple generations of each species. These mussel beds can persist at the same location in a river for decades or more. Stability of the sediment within mussel beds is thought to be critical to their survival, yet rivers frequently experience high-discharge events that move large amounts of riverbed sediment.  The need to understand exactly what riverbed instability means to mussel species is essential to reconciling these apparently contradictory views of mussel habitat."
   }
 ],
 "funder": {
   "@type": "Organization",
   "name": "Columbia Environmental Research Center",
   "url": "https://www.usgs.gov/centers/columbia-environmental-research-center"
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