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Comprehensive Report Species - Notemigonus crysoleucas

Management Summary

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Ecology & Life History

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Reproduction Comments: Spawns in late spring and summer. Eggs hatch in about 2-4 days. Sexually mature in 2nd or 3rd summer (Scott and Crossman 1973, Becker 1983).

Ecology Comments Schools in littoral zone during day; schools break up just after sunset as fishes move to limnetic zone (Sublette et al. 1990).

Habitat Type: Freshwater

Non-Migrant: Y

Locally Migrant: N

Long Distance Migrant: N

Riverine Habitat(s): BIG RIVER, CREEK, Low gradient, MEDIUM RIVER, Pool

Lacustrine Habitat(s): Shallow water

Palustrine Habitat(s): FORESTED WETLAND

Special Habitat Factors: Benthic

Habitat Comments: Usually in clean, quiet, vegetated water with access to extensive shallows. Common to abundant in ponds and lakes, often in sluggish sections of streams and rivers. Spawns over beds of submerged vegetation. May spawn in nests of largemouth bass (Becker 1983).

Adult Food Habits: Herbivore, Invertivore

Immature Food Habits: Herbivore, Invertivore

Food Comments: Feeds more on zooplankton (chiefly Cladocera) than on any other main group of organisms; insects, diatoms, and algae are often important foods also. Feeds mostly at or near surface (Becker 1983).

Phenology Comments: Feeding largely coincidental with evening movement to limnetic zone (Sublette et al. 1990).

Length: 23 centimeters

Population/Occurrence Delineation

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Group Name: MEDIUM CYPRINIDS

Use Class: Not applicable Minimum Criteria for an Occurrence: Occurrences are based on evidence of historical presence, or current and likely recurring presence, at a given location. Such evidence minimally includes collection or reliable observation and documentation of one or more individuals (including eggs and larvae) in appropriate habitat. Separation Barriers: Dam lacking a suitable fishway; high waterfall; upland habitat. Separation Distance for Unsuitable Habitat: 15 km Separation Distance for Suitable Habitat: 15 km

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