分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Curimatidae (Toothless characins)
無齒脂鯉科 (Toothless characins)
Etymology: Cyphocharax: Greek, kyphos = curved, humpback + Greek, charax = a marine fish without identification (Ref. 45335).
Eponymy: Professor Theodore Nicholas Gill (1837–1914) was an American ichthyologist, malacologist, mammologist and librarian, a zoologist at George Washington University and associated with the Smithsonian Institution for more than half a century. [...] (Ref. 128868), visit book page.
More on authors: Eigenmann & Kennedy.
Issue
See Vari (1992:109) for detailed description.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶; 20°C - 28°C (Ref. 2059)
South America: Paraguay River basin in Brazil and Paraguay.
南美洲: 在巴西與巴拉圭的巴拉圭河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 81048)
The species was reported to swim near the bottom to feed, substrate containing food are scooped and ingested. Stomach content with diatoms, desmids, and epiphytic filamentous algae. Apparently territorial, guarding areas with submerged grassy plants with algal cover, defending with chases, nips, strikes, and mouth fighting. May form schools of up to 30 individuals. Also reported to occur in small streams or places of weak currents in adjoining swampy areas. Captured along banks of rivers (Ref. 11334).
此魚種被報告在底部的附近游泳覓食, 包含食物的底部被鏟取而且攝取。 胃內容物有矽藻，鼓藻與附生植物的菌絲藻。 顯然具有領域性, 和水下的長滿草的植物用藻類覆蓋,以追逐防護, 保衛區域捏,攻擊, 與嘴戰鬥。 可能形成魚群向上到 30個個體。 也報告在鄰接沼澤的區域中出現在小的溪流或水流弱的地方。 沿著河的岸捕獲。 (參考文獻 11334)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在巴西與巴拉圭的巴拉圭河流域。
Vari, R.P., 1992. Systematics of the neotropical characiform genus Cyphocharax Fowler (Pisces, Ostariophysi). Smithson. Contrib. Zool. 529:137 p. (Ref. 11334)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 15 June 2020
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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=0.01445 (0.00639 - 0.03272), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.0 ±0.00 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
