Spawning and rearing habitat use by white sturgeons in the Columbia River downstream from McNary Dam

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Transactions of the American Fisheries Society; (United States)

DOI:https://doi.org/10.1577/1548-8659(1993)122<0217:SARHUB>2.3.CO;2· OSTI ID:5902151

Parsley, M J; Beckman, L G ^[1]

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1. Fish and Wildlife, Cook, WA (United States)

Spawning and rearing habitats used by white sturgeons Acipenser transmontanus were described from water temperature, depth, and velocity measurements and substrate types present at sites where eggs, larvae, young-of-the-year, and juveniles (ages 1-7) were collected. Spawning and egg incubation occurred in the swiftest water available (mean water column velocity, 0.8-2.8 m/s), which was within 8 km downstream from each of the four main-stem Columbia River dams in our study area. Substrates where spawning occurred mainly cobble, boulder, and bedrock. Yolk-sac larvae were transported by the river currents from spawning areas into deeper areas with lower water velocities and finer substrates. Young-of-the-year white sturgeons were found at depths of 9-57 m, at mean water column velocities of 0.6 m/s and less, and over substrates of hard clay, mud and silt, sand, gravel, and cobble. Juvenile fish were found at depths of 2-58 m, at mean water column velocities of 1.2 m/s and less, and over substrates of hard clay, mud and silt, sand, gravel, cobble, boulder, and bedrock. 38 refs., 9 figs., 2 tabs.

• OSTI ID: 5902151
• Journal Information: Transactions of the American Fisheries Society; (United States), Journal Name: Transactions of the American Fisheries Society; (United States) Vol. 122:2; ISSN TAFSAI; ISSN 0002-8487
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130600* -- Hydro Energy-- Environmental Aspects
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
COLUMBIA RIVER
DAMS
FISHES
HABITAT
HYDROELECTRIC POWER PLANTS
POPULATIONS
POWER PLANTS
RIVERS
STREAMS
SURFACE WATERS
VERTEBRATES