Teleostei (teleosts) >
Siluriformes (Catfishes) >
Auchenipteridae (Driftwood catfishes) > Centromochlinae
Etymology: Tatia: Because of Mr. C. Tate Regan (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical; 22°C - 26°C (Ref. 12468)
South America: Middle Orinoco River basin in Venezuela, including Meta drainage in Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.6 cm SL male/unsexed; (Ref. 79512)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 1; Dorsal soft rays (total): 5; Anal soft rays: 9 - 10; Vertebrae: 32 - 33. The following unique characters separate this species from all other species of Tatia: postcleithral process well developed, reaching almost to a vertical through the dorsal-fin origin; orbital diameter 37.0-42.9% HL; and snout length 23.1-28.9% HL . Can be further distinguished by the following features: narrow elliptical cranial fontanel; ribs 7; nasal ossified with wide medial flanges partially sutured to lateral margin of mesethmoid; coloration variable, sides of body usually dark with light, rounded spots or dots, or sometimes uniformly pale brown; toothed prevomer in examined large adult specimens (Ref. 79512).
Reaches sexual maturity above 5.42 cm SL (Ref. 79512).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sarmento-Soares, L.M. and R.F. Martins-Pinheiro, 2008. A systematic revision of Tatia (Siluriformes: Auchenipteridae: Centromochlinae). Neotrop. Ichthyol. 6(3):495-542. (Ref. 79512)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±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).