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No image available for this species; drawing shows typical species in Characidae.
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) > Characidae (Characins; tetras) 脂鯉科 (Characins; tetras) > Cheirodontinae
Etymology: Serrapinnus:Latin, serran, serranus, saw and a fish of genus Serranus + Latin, pinna = spiny, thorn (Ref. 45335); malabarbai:Named after Luiz Roberto Malabarba (UFRGS); genitive noun. Eponymy: Dr Luiz Roberto Malabarba is a Brazilian ichthyologist and biologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range 生態學
背的軟條 (總數) : 8; 臀鰭軟條: 13 - 16. This species is distinguished by the following characters: with a well-defined dark midlateral stripe on body starting over the eye; D 8 branched rays; 3 premaxillary teeth; an inconspicuous caudal-peduncle spot (Ref. 119420). Body shape (shape guide): elongated; Cross section: compressed.
Inhabits a small, clear water stream 1.5-4 m wide and 0.3-1.5 m deep, with swift water current, and sandy bottom. It was captured in a shallow (0.2-0.6 m), and narrow (0.5-1.5 m) temporary channel and syntopically with Hyphessobrycon cf. vilmae, Hyphessobrycon loweae, Characidium mirim and unidentified species of Characidium sp., and Hemigrammus sp. (Ref. 119420).
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Jerep, F.C., F.C.P. Dagosta and W.M. Ohara, 2018. A new miniature species of Serrapinnus (Characiformes: Characidae) from the upper Rio Araguaia, Brazil. Copeia 106(1):180-187. (Ref. 119420)
Phylogenetic diversity index (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00461 - 0.02730), b=3.08 (2.89 - 3.27), 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 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100). 🛈