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Open-File Report 2013-1110

Prepared in cooperation with the Chelan County Public Utility District

Capture of White Sturgeon Larvae Downstream of The Dalles Dam, Columbia River, Oregon and Washington, 2012

By Michael J. Parsley and Eric Kofoot

Thumbnail of and link to report PDF (700 KB)Abstract

Wild-spawned white sturgeon (Acipenser transmontanus) larvae captured and reared in aquaculture facilities and subsequently released, are increasingly being used in sturgeon restoration programs in the Columbia River Basin. A reconnaissance study was conducted to determine where to deploy nets to capture white sturgeon larvae downstream of a known white sturgeon spawning area. As a result of the study, 103 white sturgeon larvae and 5 newly hatched free-swimming embryos were captured at 3 of 5 reconnaissance netting sites. The netting, conducted downstream of The Dalles Dam on the Columbia River during June 25–29, 2012, provided information for potentially implementing full-scale collection efforts of large numbers of larvae for rearing in aquaculture facilities and for subsequent release at a larger size in white sturgeon restoration programs.

First posted May 14, 2013

For additional information contact:
Director, Western Fisheries Research Center
U.S. Geological Survey
6505 NE 65th Street
Seattle, Washington 98115
http://wfrc.usgs.gov/

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Suggested citation:

Parsley, M.J., and Kofoot, E., 2013, Capture of white sturgeon larvae downstream of The Dalles Dam, Columbia River, Oregon and Washington, 2012: U.S. Geological Survey Open-File Report 2013-1110, 12 p.



Contents

Abstract

Introduction

Study Methods

Site Selection and Capture of White Sturgeon in Early Life Stages

Conclusions and Recommendations

Acknowledgments

References Cited


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