分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); singularis: The specific name refers to the singular and striking aspect of this species.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性.
South America: Cinaruco River, Orinoco River basin in Venezuela.
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 3.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 77139)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11 - 12; 臀鰭軟條: 20 - 21; 脊椎骨: 33. Distinguished from all other species of the genus in having the following characters: top of the head flat; dentary with six or seven slight unicuspid teeth; a dark lateral band extending from posterior edge of the usually diffuse humeral spot to the base of caudal fin, and that widens and strengthens in intensity posteriorly at point beneath dorsal fin origin; and five supraneural bones without cartilage on either upper or lower edges and without cartilage on all structures (Ref. 77139).
Body shape (shape guide): fusiform / normal.
An omnivorous fish which feeds on aquatic insects, snails, seeds and aquatic plants (Ref. 77139).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Román-Valencia, C., D.C. Taphorn B. and R.I. Ruiz-C., 2008. Two new Bryconamericus: B. cinarucoense n. sp. And B. singularis n. sp. (Characiformes, characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species. Anim. Biodivers. Conserv. 31(1):15-27. (Ref. 77139)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 09 November 2020
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00599 - 0.03330), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 2.8 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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