分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Triportheidae (Hatchet characins) > Triportheinae
Etymology: Triportheus: Greek, tres tria = three + Greek, portheo = to sack (Ref. 45335); orinocensis: Named after its type locality, Rio Orinoco..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: Rio Orinoco basin.
南美洲: Rio 奥里诺科河流域。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 19 - ? cm
Max length : 13.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 54769)
简单描述
检索表 | 型态特徵 | 形态测量图
Body deep, with depth at dorsal-fin origin 28.7-37.1% SL and depth at pectoral-fin insertion 32.2-39.3. Distinguished easily from its congeners by the extensive scaling over the caudal and anal fins. Differs from elongate-bodied Triportheus species that have 1 longitudinal scale row between the pectoral-fin insertion and the ventral keel by the presence of 2 longitudinal scale rows between the pectoral-fin insertion and the ventral keel. Differs further from deep-bodied congeners by the combination of the number of hill rakers on the lower limb of the first gill arch (24-28); the number of branched anal-fin rays (28-32); and the number of lateral-line scales (34-39) (Ref. 54769).
身体纵深的, 在背鳍起点 28.7-37.1% SL 与在胸鳍嵌入 32.2-39.3 的深度随着深度. 容易地从它的同类在尾鳍与臀鳍上的藉由广泛的缩放比例区别了。 有别于有在胸鳍嵌入与腹的龙骨脊之间的 1 纵向的鳞片列藉由的细长的身体 Triportheus 种有在胸鳍嵌入与腹的龙骨脊之间的 2 纵向的鳞片列。 进一步不同于身体纵深同类藉由第一个鳃弓的小山耙的数字对下面肢翼的组合;(24-28) 分枝臀鳍棘条的数字;(28-32) 而且侧线鳞片 (34-39) 的数字.(参考文献54769)
描述: D. ii,9; A. iii,28-32; P. i,10-13; V. i,6.(參考文獻 54769)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: Rio 奥里诺科河流域。
Malabarba, M.C.S.L., 2004. Revision of the neotropical genus Triportheus Cope, 1872 (Characiformes: Characidae). Neotrop. Ichthyol. 2(4):167-204. (Ref. 54769)
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.8 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
