分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Percopsiformes (Trout-perches, pirate perches and cavefishes) >
Amblyopsidae (Cavefishes)
Etymology: Chologaster: Greek, cholos, -e, -on = trough, kneading trough + Greek, gaster = stomach (Ref. 45335).
More on author: Agassiz.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 温带; 38°N - 32°N
North America: Atlantic Coastal drainages from Virginia to Georgia, U.S.A.
北美洲: 来自维吉尼亚到乔治亚州的大西洋的海岸流域, 美国
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.8 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 4.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 9 - 12; 臀鳍软条: 9 - 10. Strongly bicolored; dark brown above, white to yellow below. Small eyes. No pelvic fins. 3 narrow black stripes on side; one on lower side wide at front, narrow at rear. 2 black streaks along back before dorsal fin separate to encircle dorsal fin; pink gills visible. Caudal fin clear near base, often black in center; dusky black band in dorsal fin. 0-2 rows of papillae on caudal fin. 9-11 branched caudal rays.
强烈地 bicolor; 上方深褐色的, 下面白色到黄色的。 小的眼。 没有腹鳍。 在侧边上的 3条狭窄的黑色斑纹; 一在下侧上在前面是宽的, 狭窄的在后面。 2个黑色的条纹在背鳍分开之前沿着背面环绕背鳍; 粉红的鳃看得见的。 尾鳍清澈的近基底, 时常黑色的在中心; 在背鳍的暗色黑色的条纹。 在尾鳍上的 0-2 列的乳突。 9-11 分枝了尾部的鳍条。
Adults occur on vegetation and debris in swamps, sloughs and quiet pools and backwaters of streams. Found year-round in open streams which are small and well-shaded with temperatures never exceeding 23°C. In such streams, thigmotaxic tendency is shown by the difficulty in seining these individuals from the roots and debris of their preferred habitat along edges of submerged weed banks which border sand-bottomed channels. This habitat is rich in potential food for C. cornuta like amphipods, ostracods and copepods (Ref. 34868). Eggs are carried in gill chambers of females (Ref. 205).
在沼泽，泥坑与静止的池水与溪流中的死水中生活于植物与残砾。 在开放的溪流中发现全年那是小而很好遮蔽的与温度从不超过 23个 ° C. 在如此的溪流中，它的趋触性趋向在围网中被显示藉由困难它从根，而且它的优先栖息地的残砾沿着毗邻砂质底的峡道的水下杂草浅堆的边缘。 这一个栖息地是对于像片脚类动物，介形虫与桡脚类的动物一样的 C. cornuta 丰富的在可能的食物 (参考文献 34868)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Incubates eggs in gill chamber of females (Ref. 205).北美洲: 来自维吉尼亚到乔治亚州的大西洋的海岸流域, 美国
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0088 [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): 3.3 ±0.47 se; based on food items.
Generation time: 1.1 ( 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 (K=1.03; Fec=98).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
