Goldeye - Hiodon alosoides
Members of the Mooneye family are moderately sized fishes with deep, flat-sided bodies covered by large silvery scales. They resemble herrings. They have large, reflective eyes with rods only, no cones. This makes them uniquely adapted to see under low light conditions but they cannot detect colors.
Large scales. Dorsal fin situated about the same distance posteriorly as the anal fin. Well-developed teeth on jaws, roof of mouth, and tongue.
Summary of Observations Submitted for Montana
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May make extensive migrations to spawn in tributary streams.
This is a species of the Large Valley and Large Prairie Rivers ecological systems, occasionally getting up into Medium prairie rivers and reservoirs that have direct connnections; adapted to turbid water. Prefers calm waters for spawning and incubation.
Mostly insects; crustaceans, mollusks, and small fish also.
Young of year goldeye in middle Missouri River prefer backwater and side channel pool habitats as rearing areas.
Spawns from late March through May. Sex mature at 3-4 yrs. Spawns in schools, eggs semi-buoyant. Spawned first in May in middle Missouri River.
- Additional ReferencesLegend: View Online Publication
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- Golden Sunlight Mines, Inc., Whitehall, MT., 2000, Golden Sunlight Mines, Inc., Annual Permit Reports.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2001: Creston Site, Creston, Montana. Proj. No. 130091.007. July 2002. In 2001 Wetland Mitigation Monitoring Reports, Vol. I.
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