Teleostei (teleosts) >
Characiformes (Characins) >
Characidae (Characins; tetras) > Incertae sedis
Etymology: Tucanoichthys: From Tucano, a group of tribes from the northwestern Amazonas + greek, ichthys = fish.
Eponymy: This genus and species are named after the Tucano Indians of the upper Rio Negro and Rio Uaupés area of Amazonas, Brazil. (Ref. 128868), visit book page.
More on authors: Géry & Römer.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Uaupés River in upper Negro River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.7 cm SL male/unsexed; (Ref. 38376)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 10 - 11; Anal soft rays: 19 - 21. Jaws relatively large, narrow, set with a single row of conical teeth; premaxilla with a double curve, forming an "S". Lateral line almost non-existent; predorsal line broadly naked; postorbitals lacking.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).