分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 非迁移的. 溫帶; 61°N - 41°N
North America: Atlantic, Great Lakes, Hudson Bay, and upper Mississippi, Missouri and Peace-Mackenzie River drainages, from Nova Scotia west to Northwest Territories and British Columbia in Canada; south to northern Pennsylvania, Wisconsin and Nebraska in USA. Isolated population in South Platte River system in Colorado, 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-麥肯茲河流域從新斯科舍省西至西北地區與加拿大卑詩省; 南至賓州北部，威斯康辛州，內布拉斯加與美國科羅拉多州。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); common length : 4.8 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 3.00 年 (Ref. 12193)
Chrosomus eos is distinguished from a similar species C. erythrogaster by having more rounded, shorter (about equal to eye diameter) snout and more upturned mouth, with chin in front of upper lip. Other characters useful to identify this species include 70-90 lateral scales and red or yellow belly, head, and fins in large males (Ref. 86798).
Inhabits lakes, ponds, bogs, and pools of headwaters and creeks. Usually occurs over silt, often near vegetation (Ref. 86798). Feeds mainly on algae, but also on zooplankton and aquatic insects. Preyed upon by fishes, kingfishers and mergansers (Ref. 1998). Spawning occurs in spring or early summer (Ref. 1998). Used as bait in parts of Ontario and Quebec (Ref. 1998).
栖息于河源上游与小溪的湖，池塘，沼泽与水池。 通常发生在淤泥, 时常在植物的附近。 主要吃藻类, 也捕食浮游动物与水生昆虫.(参考文献 1998) 在春天或初夏产卵。 (参考文献 1998) 被鱼，鱼狗与秋沙鸭捕食了。 (参考文献 1998) 在安大略省与魁北克的部份中当作鱼饵了。 (参考文献 1998)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
A female attracts a few males with her darting movements. Together, the group dives into a mass of filamentous algae and release sperm and nonadhesive eggs. The group spawns in several algal masses.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-麥肯茲河流域從新斯科舍省西至西北地區與加拿大卑詩省; 南至賓州北部，威斯康辛州，內布拉斯加與美國科羅拉多州。
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)
人类利用
水族馆: 公众的水族馆; 诱饵: occasionally
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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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.5 ±0.1 se; based on diet studies.
Generation time: 1.0 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (tmax=3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
