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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Hyphessobryconinae
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の; pH range: 4.0 - 5.5. Tropical; 27°C - 28°C (Ref. 132985)
South America: Brazil, Central and lower Amazon basin (Ref. 132965).
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 2.9 cm SL オス/雌雄の選別がない; (Ref. 132985); 3.9 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 9 - 10; 肛門の骨: 4; 臀鰭: 17 - 21. This species is distinguish the species from its congeners and Hemigrammus species by the following characters (see the original description where the long diagnosis looks more as an identification key): humeral blotch very conspicuous, well-defined, and elongated with a shorter and posterior backward extension; longer anal fin, with a higher number of branched anal-fin rays (17?21 vs. 11?14); caudal peduncle blotch large, symmetric, extending into the basis of the middle caudal fin rays; etc. Other distinguishing characters are listed species by species (Ref. 132985).
Cross section: oval.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lima, F.C.T., C. Silva-Oliveira, C. Oliveira and T.C. Faria, 2025. A new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the Central Amazon basin, Brazil. Pap. Avulsos Zool. 65[e202565011]:1-15. (Ref. 132985)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01202 (0.00479 - 0.03019), b=3.09 (2.89 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.2 ±0.31 se; based on food items. |
回復力 (参照 120179) |
高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |