Capture of white sturgeon larvae downstream of The Dalles Dam, Columbia River, Oregon and Washington, 2012

Michael J. Parsley; Eric Kofoot

doi:10.3133/ofr20131110

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Capture of white sturgeon larvae downstream of The Dalles Dam, Columbia River, Oregon and Washington, 2012

Michael J. Parsley·Eric Kofoot

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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.

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Source-reported bounding extent: 46.13° to 46.34° latitude; -124.08° to -123.48° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Michael J. Parsley, Eric Kofoot. 2013. Capture of white sturgeon larvae downstream of The Dalles Dam, Columbia River, Oregon and Washington, 2012. https://doi.org/10.3133/ofr20131110

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