分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 非遷移的. 溫帶; 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.
北美洲: 大西洋，五大湖，哈得遜灣，密西西比河上游，密蘇里與和平-麥肯茲河流域從新布蘭斯維克到育空河一帶與加拿大的英屬哥倫比亞; 南至美國紐約州，威斯康辛州與懷俄明州。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 11.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 86798); common length : 6.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大年齡: 6 年 (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).
出現於河川源頭,小溪與小河的湖，池塘與滯水潭通常在淤泥上面與在植物的附近。 可能吃昆蟲，甲殼動物與浮游生物。 (參考文獻 1998) 可能在春天產卵。 (參考文獻 1998) 與 曙鱥〔Phoxinus eos〕 雜交。 那雜交是一直是雌性而且在一些地區更普遍那親種。 用親種的雄性與結果雜交繁殖能數目超過甚至取代父母種之一。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 大西洋，五大湖，哈得遜灣，密西西比河上游，密蘇里與和平-麥肯茲河流域從新布蘭斯維克到育空河一帶與加拿大的英屬哥倫比亞; 南至美國紐約州，威斯康辛州與懷俄明州。
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 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 03 November 2011
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00439 - 0.02869), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.6 ±0.0 se; based on diet studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tmax=6).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
