分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Percopsiformes (Trout-perches, pirate perches and cavefishes)
鮭鱸目 (Trout-perches, pirate perches and cavefishes) >
Amblyopsidae (Cavefishes)
洞穴魚科 (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
生態學
; 淡水 居於水底的. 溫帶; 38°N - 32°N
North America: Atlantic Coastal drainages from Virginia to Georgia, U.S.A.
北美洲: 來自維吉尼亞到喬治亞州的大西洋的海岸流域, 美國
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.8 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 4.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 9 - 12; 臀鰭軟條: 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.
強烈地 bicolor; 上方深褐色的, 下面白色到黃色的。 小的眼。 沒有腹鰭。 在側邊上的 3條狹窄的黑色斑紋; 一在下側上在前面是寬的, 狹窄的在後面。 2個黑色的條紋在背鰭分開之前沿著背面環繞背鰭; 粉紅的鰓看得見的。 尾鰭清澈的近基底, 時常黑色的在中心; 在背鰭的暗色黑色的條紋。 在尾鰭上的 0-2 列的乳突。 9-11 分枝了尾部的鰭條。
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).
在沼澤，泥坑與靜止的池水與溪流中的死水中生活於植物與殘礫。 在開放的溪流中發現全年那是小而很好遮蔽的與溫度從不超過 23個 ° C. 在如此的溪流中，它的趨觸性趨向在圍網中被顯示藉由困難它從根，而且它的優先棲息地的殘礫沿著毗鄰砂質底的峽道的水下雜草淺堆的邊緣。 這一個棲息地是對於像片腳類動物，介形蟲與橈腳類的動物一樣的 C. cornuta 豐富的在可能的食物 (參考文獻 34868)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Incubates eggs in gill chamber of females (Ref. 205).北美洲: 來自維吉尼亞到喬治亞州的大西洋的海岸流域, 美國
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 03 November 2011
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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).
營養階層 (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.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (K=1.03; Fec=98).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
