分类 / Names
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Teleostei >
Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); hypselurus: Name from Greek 'hypselos' meaning 'high' and 'oura' for tail; referring to the depth of the posterior part of the body; treated as an adjective..
More on authors: Robins & Robison.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 溫帶; 39°N - 36°N
North America: USA (Osage, Black, and Gasconade drainages).
北美洲: 在美國的密蘇里的 Ozark 丘陵地與阿肯色州的 Meramec ，密蘇里與白色 (包括黑色的) 河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 83416)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 6 - 8; 背的软条 (总数) : 16 - 19; 臀鳍软条: 12 - 15. This species is distinguished by the following characters: D VI-VII (96% of specimens); pectoral fin rays usually 13-15; caudal-base band may be notched or non-notched; lateral line pores modally 23; pigmentation of the ventral surface of the peritoneum moderate to strong; dorsal-fin union slight to moderate; blue chin and belly on spawning males (shared with C. immaculatus and C. caeruleomentum) (Ref. 83416).
This species prefers cool clear brooks and moderate to large streams and rivers usually with rapid flow and gravelly or rocky bottoms. Within these environment, it typically occurs in shallow, gravel-bottomed riffles or shoal regions with strong current. It is reported to often occur in thick growths of watercress (Nasturtium officina. Little is known of its biology. Feeds also on crayfish (Orconectes); larvae of Trichoptera (Hydropsychidae), Plecoptera, Ephemeroptera, Diptera (Chironomus, Simulium), gastropods, elmid beetles and miscellaneous animal material, including other individuals of C. hypselurus (Ref. 121014).
出现于小溪及小型到中型河川的碎石激流, 与时常在植物的附近在泉水中与其溢流。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
北美洲: 在美國的密蘇里的 Ozark 丘陵地與阿肯色州的 Meramec ，密蘇里與白色 (包括黑色的) 河流域。
Robins, C.R. and H.W. Robison, 1985. Cottus hypselurus, a new cottid fish from the Ozark Uplands, Arkansas and Missouri. American Midland Naturalist, 114(2):360-373. (Ref. 121014)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
