Lớp phụ (Subclass) cá vây tia
(Carps) > Cyprinidae
(Minnows or carps) > Leuciscinae
Etymology: Chrosomus: Chrosomus meaning color (Ref. 1998). More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt gần đáy; không di cư. Temperate; 62°N - 41°N
North America: Atlantic, Great Lakes, Hudson Bay, and upper Mississippi, Missouri, and Peace-Mackenzie River drainages from New Brunswick to Yukon Territory and British Columbia in Canada; south to New York, Wisconsin and Wyoming in USA.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL con đực/không giới tính; (Ref. 86798); common length : 6.0 cm TL con đực/không giới tính; (Ref. 12193); Tuổi cực đại được báo cáo: 6 các năm (Ref. 12193)
Chrosomus neogaeus can be distinguished by having the following characters: 63-92 scales on lateral line; pharyngeal teeth 2,5-4,2; large head; large terminal mouth extending under eye; rounded snout; dark brown to gray cape on back and upper side; body well specked with black; dark olive to gold stripe along side, light olive between cape and stripe; silver white below; usually a black caudal spot; clear to yellow fins; and red along side in large males (Ref. 86798).
Occurs in lakes, ponds and sluggish pools of headwaters, creeks and small rivers, usually over silt and near vegetation (Ref. 86798). Probably feeds on insects, crustaceans, and plankton (Ref. 1998). Spawning probably occurs in the spring (Ref. 1998). Commonly hybridizes with Chrosomus eos. The hybrids are always females and in some areas are more common than the parental species. Hybrids breed with males of the parental species and consequently can outnumber and even replace one of the parent species (Ref. 86798).
Life cycle and mating behavior
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Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
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Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00393 - 0.01681), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Mức dinh dưỡng (Ref. 69278
): 2.6 ±0.0 se; Based on diet studies.
Thích nghi nhanh (Ref. 120179
): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (tmax=6).
Vulnerability (Ref. 59153
): Low vulnerability (21 of 100) .