分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Clupeiformes (Herrings) >
Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Thrattidion: Diminutive of Greek, thratta, -es = a kind of fish (Ref. 45335).
More on author: Roberts.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 熱帶; 6°N - 3°N
Africa: Sanaga River in Cameroon (Ref. 188, 3509, 28136, 81631).
非洲: 在喀麥隆的 Edea 的沙那加河的特有種。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 2.1 cm SL 雄鱼/尚未辨别雌雄; (Ref. 188)
背棘 (总数): 0; 背的软条 (总数): 14-16; 臀棘 0; 臀鳍软条: 23 - 25; 脊椎骨: 45 - 47. Diagnosis: Small and slender or moderately deep-bodied fishes, its depth 20-28% of standard length, perhaps not reaching much over 2 cm standard length; belly rounded, pre-pelvic scutes 4-7, with lateral arms, but without keels; pelvic scute with 2 or 3 lateral arms; post-pelvic scutes 3-5, keeled and with arms; posterior supra-maxilla absent; lower gillrakers 10-12; pelvic insertion well before dorsal fin, with 1 unbranched and 6-7 branched finrays; anal fin beginning under dorsal fin base (Ref. 188, 81631, 93833). The presence of scutes distinguishes Thrattidion noctivagus from Congothrissa gossei and the absence of a posterior supra-maxilla distinguishes it from all other West or Central African pellonulines (Ref. 188).
也许不多超过 2 公分标准长度。 前腹鳍鳞甲 4 到 7, 藉由侧面的手臂, 但是没有龙骨脊; 用 2 或 3 侧面的手臂腹鳍鳞甲; 在腹鳍之后的鳞甲龙骨了与具有手臂; 臀鳍在背鳍基底下面开始。 那有鳞甲区别它和 Congothrissa gossei; 从所有的其他西方或中非 pellonulines 藉由缺少一个第二个上颚骨。
A riverine species, collected only at dusk and dawn in swiftly flowing water of about 1 m just above the hydro-electric dam at Edea, Cameroon (Ref. 188). It feeds on plankton and some terrestrial insects (Ref. 188).
一个河栖性鱼种, 在喀麦隆的 Edea 在水力发电的水坝的正上方在大约 1 公尺的很快流动水只在薄暮与破晓采集到了。 吃浮游生物与一些陆栖的昆虫。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 在喀麥隆的 Edea 的沙那加河的特有種。
Teugels, G.G., 2007. Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631)
人类利用
渔业: 没有兴趣
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俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00433 - 0.01920), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.42 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
