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Open-File Report 2010–1215

Prepared in cooperation with the Missouri River Recovery–Integrated Science Program U.S. Army Corps of Engineers, Yankton, South Dakota

Ecological Requirements for Pallid Sturgeon Reproduction and Recruitment in the Lower Missouri River: Annual Report 2009

By Aaron J. DeLonay1, Robert B. Jacobson1, Diana M. Papoulias1, Mark. L. Wildhaber1, Kimberly A. Chojnacki1, Emily K. Pherigo1, Casey L. Bergthold2, and Gerald E. Mestl2

1 U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO 65201
2 Nebraska Game and Parks Commission, Lincoln, NE 68503
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Abstract

The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The general Comprehensive Sturgeon Research Project strategy is to integrate field and laboratory studies of sturgeon reproductive ecology, habitat requirements, and physiology to produce a predictive understanding of sturgeon population dynamics. The project scope of work is developed annually with cooperating research partners and in collaboration with the U.S. Army Corps of Engineers, Missouri River Recovery—Integrated Science Program. The research consists of several interdependent and complementary research tasks engaging multiple disciplines that primarily address spawning as a probable limiting factor in reproduction and survival of the pallid sturgeon. The research is multifaceted and is designed to provide information needed for management decisions impacting habitat restoration, flow modification, and pallid sturgeon population augmentation on the Missouri River, and throughout the range of the species. Research activities and progress towards understanding of the species are reported to the U.S. Army Corps of Engineers annually. This annual report details the research effort and progress made by Comprehensive Sturgeon Research Project during 2009.

First posted October 13, 2010

For additional information contact:
Director, USGS Columbia Environmental Research Center
4200 New Haven Road
Columbia, MO 65201
(573) 875–5399
http://www.cerc.usgs.gov

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Suggested citation:

DeLonay, A.J., Jacobson, R.B., Papoulias, D.M., Wildhaber M.L., Chojnacki, K.A., Pherigo, E.K., Bergthold, C.L., and Mestl, G.E., 2010, Ecological requirements for pallid sturgeon reproduction and recruitment in the Lower Missouri River: Annual report 2009: U.S. Geological Survey Open-File Report 2010-1215, 64 p.



Contents

Abstract

Introduction

Scope of Work

Hydroclimatic Conditions During 2009 Field Work

Accomplishments and Products

Future Research into Reproductive Ecology of Missouri River Pallid Sturgeon

Detailed Research Task Activities and Progress

Acknowledgements

References Cited


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