Issue
Forms inhabiting lower Amazonas and lower Orinoco are tentatively identified as D. carinatus and may represent one or more undescribed species.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water; brak water demersaal. Tropical
South America: Essequibo River basin and other coastal drainages east to mouth of Amazon River, possibly in lower Amazon and lower Orinoco River basins. Forms inhabiting lower Amazon and lower Orinoco are tentatively identified as Doras carinatus and may represent one or more undescribed species.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm SL mannelijk / geslacht onbekend; (Ref. 37054)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 6; Anale zachte stralen: 11 - 15. Body elongated, without scales but with a range of 33-35 spiny bony plaque which runs along the length of the lateral, starting from the extreme end of the caudal fin up to the point directly below the origin of the dorsal fin. Head is pointed and laterally compressed, its width being far less than its length. Eyes are high and are situated in the posterior half of the head. Mouth is inferior, provided with a pair of maxillary barbels branching into 12 or 13 branches and 4 short mandibular barbels. Adipose fin short
Can emit sounds by moving its pectoral spines. Every basic unit of sound emitted lasts for 60-70 millisecond, with a frequency of 60-90 Hertz corresponding to the reply frequency of the muscles utilized (Ref. 35381).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. 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. 37054)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00528 - 0.02384), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
