分类 / Names
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Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); virolinica: Named for its type locality, Virolín in Santander state, Colombia..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.9 - 8.1. ? - 28°C (Ref. 83529)
South America: Santander, Colombia.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 9.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 83529)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 10 - 11; 脊椎骨: 39 - 41. Diagnosed from other species of Hemibrycon by the possession of the posterior end of the extrascapular spine surpassing the postemporal and the posterior end of the first proximal pterygiophores of dorsal fin of the same size as the anterior edge. Distinguished from Hemibrycon colombianus in having 40-44 pored scales in the lateral line; and from other species from the upper and middle Magdalena drainage by the absence of a lateral band and the presence of a pigmented adipose fin (Ref. 83529).
Inhabits creeks with surface temperature 15.8-27.5°C, air temperature 17.3-21.4°C, dissolved oxygen 4.3-7.9mg/l and 87-99% saturation, pH 6.9-8.1, width 2-10m, substrate composed of stone and sand, and water coffee colored (Ref. 83529).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Román-Valencia, C. and D.K. Arcila-Mesa, 2010. Five new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia. Revista de Biología Tropical (International Journal of Tropical Biology and Conservation) 58 (1):339-356. (Ref. 83529)
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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=0.00813 (0.00372 - 0.01775), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
