Evaluating the Effectiveness of Freshwater Mussel Mitigation Strategies: Final Report

Details

• Creators:
  Schwalb, Astrid ; Rodriguez, David ; Barnhart, Chris ; Harding, Stephen ; Hardy, Thom ; Hernandez, Bianca ; Mitchell, Zachary ; Sanchez, Brittney ; Seagroves, Ashley
• Corporate Creators:
  Texas State University--San Marcos ; Missouri State University
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Alternatives analysis
  • Animal migrations
  • Conservation
  • Environmental protection
  • Evaluation and assessment
  • Mollusca
  • Surveying
  • Unionid mussels
• Publication/ Report Number:
  FHWA/TX-19/0-6882-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Edition:
  September 2015–August 2018
• Corporate Publisher:
  Texas. Department of Transportation
• Abstract:
  Relocation of mussels is applied as a mitigation strategy for potential impacts on threatened mussel species resulting from bridge construction or repairs. Demonstrably efficient surveys are required to document the distribution and abundance of mussels within the potentially impacted area to enable relocation. There is increased interest in propagation of threatened mussels in Texas as a potential conservation method or potential alternative mitigation strategy, but this requires more life history and genetic information. This project examined different aspects of mussel mitigation strategies by examining (1) and comparing the effectiveness of survey methods at six sites in rivers of Central Texas; (2) the seasonality of vertical migration; (3) the reproductive ecology of Lampsilis bracteata, its seasonality in brooding and gamete production and suitability of different host fish species from different sources; (4) the seasonality of gamete production of Cyclonaias species; and (5) the genetic structure of wild populations and providing crucial information for augmentation efforts and genetic management.
• Format:
  PDF
• Funding:
  0-6882
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/62074/dot_62074_DS1.pdf
• File Type:
  [PDF - 3.84 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:7651e7ea20227431cf582a5974f0607935b69899c9ad928f7990e8443eed975a