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Effect of water velocity and temperature on energy reserves of larval Pallid Sturgeon

Duration

June 2017 - December 2019

Narrative

The larval phase of freshwater fishes is often characterized by high mortality. As with many fishes, the recruitment bottleneck for Pallid Sturgeon is believed to occur during their early life history. Recent work in the upper Missouri River has linked anoxic conditions in river-reservoir transition zones to recruitment failure in Pallid Sturgeon. In addition to oxygen content, water velocity is believed to play an important role in affecting dispersal and survival of larval Pallid Sturgeon in the Missouri River. Larval Pallid Sturgeon require longer migration distances and drift at faster rates (i.e., similar to ambient water velocities) than Shovelnose sturgeon (Scaphirhynchus platorynchus). As a result, empirical data reveal that larval Pallid Sturgeon can take over twice as long as Shovelnose sturgeon to switch from endogenous to exogenous feeding. The objective of this study is to quantify the combined effects of water velocity and water temperature on growth, energy reserves, survival, and estimated dispersal of endogenous larval Pallid Sturgeon. The project is a collaboration with the U.S. Fish & Wildlife Service, the U.S. Army Corps of Engineers, and the U.S. Department of Energy.

Research Products and Activities

Presentations

  • Mrnak, J.T., S.R. Chipps, and D.A. James. 2018. Effect of water velocity on growth, survival, and energy reserves of endogenous Pallid Sturgeon Scaphirhynchus albus larvae. 54th Annual Meeting of the Dakota Chapter American Fisheries Society, Brookings, South Dakota.
  • Mrnak, J.T., S.R. Chipps, and D.A. James. 2018. Effect of water velocity on energy reserves and survival of endogenous Pallid Sturgeon Scaphirhynchus albus larvae. Missouri River Natural Resources Conference, Nebraska City, Nebraska.
  • Mrnak, J.T., S.R. Chipps, and D.A. James. 2018. Influence of water velocity on rheotactic behavior and energy reserves of endogenous Pallid Sturgeon Scaphirhynchus albus larvae. 149th Annual Meeting of the American Fisheries Society, Atlantic City, New Jersey.
 

Current Staff

Federal Staff: 3

Masters Students: 7

Phd Students: 2

Post Docs: 0

University Staff: 1

5 Year Summary

Students graduated: 16

Scientific Publications: 54

Presentations: 129

 

Personnel

Funding Agencies

  • U.S. Department of Energy, Western Area Power Administration

Links

South Dakota Cooperative Fish and Wildlife Research Unit Cooperators

  1. South Dakota Game, Fish and Parks
  2. South Dakota State University
  3. U.S. Fish and Wildlife Service
  4. U.S. Geological Survey
  5. Wildlife Management Institute