分類 / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335).
More on author: Géry.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: coastal basins of French Guiana and Suriname and from lower rios Tapajós, Tocantins and Xigu basins, Pará, Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 9.5 cm SL オス/雌雄の選別がない; (Ref. 101566); 最大公表体重: 19.40 g (Ref. 101566)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 8; 臀鰭: 26 - 27; 脊つい: 38 - 39. This species is distinguished from its congeners, except H. divisorensis, by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin rays 9 to 12-13. It differs from H. divisorensis by the absence of a black band in the lower half of the caudal peduncle from the region above the last anal-fin rays to the caudal-fin base, and by the smaller number of scales along anal-fin base scale sheath (15-16 vs. 17-22) (Ref. 85819).
Rare and not well known (Ref. 12225).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Bertaco, V.A. and L.R. Malabarba, 2010. A review of the Cis-Andean species of Hemibrycon Günther (Teleostei: Characiformes: Characidae: Stevardiinae), with description of two new species. Neotrop. Ichthyol. 8(4):737-770. (Ref. 85819)
Human uses
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特記事項
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インターネットの情報源
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=0.01023 (0.00549 - 0.01908), b=3.14 (2.98 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
