分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Andean tributaries of Paraná River basin in northwestern Argentina.
南美洲: 在在西北部的阿根廷的巴拉納河流域的安第斯山脈支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 37059)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 2; 背的軟條 (總數): 8; 臀棘 2; 臀鰭軟條: 7; 脊椎骨: 37. A generalized Characidium with the isthmus scaly and the breast rounded, iii external pectoral rays and i external pelvic ray, the eye only slightly oblique, the lateral line complete and the adipose fin present; zebra-like color pattern; characterized by only ii,8 dorsal rays and few (5/5) teeth on both jaws, essentially conical, with apex of the mandibulary teeth somewhat enlarged, triangular, and probably no second mandibulary row and no pterygoid teeth. 'Spines' refer to unbranched rays.
具有峽部的一個被推廣的 Characidium 有鱗的與胸部圓形的, iii 外部的胸鰭鰭條與 i 外部的腹鰭鰭條, 眼只些微地斜的, 那側線完整與有脂鰭者; 像斑馬一樣的彩色斑紋; 只特徵為 ii了,8個背鰭鰭條與少數的 (5/5) 牙齒在雙顎, 實質上錐形, 藉由下顎齒略微增大的﹐三角形的﹐與可能沒有第二下顎列與沒有翼狀的齒尖頂。 '棘' 指的是不分枝的鰭條。
A limitroph species (Ref. 38397).
一個 limitroph 種.(參考文獻 38397)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在在西北部的阿根廷的巴拉納河流域的安第斯山脈支流。
Buckup, P.A., 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyol. Explor. Freshwat. 4(2):97-154. (Ref. 13683)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 01 November 2020
人類使用
漁業: 沒有興趣
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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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
