Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Auchenipteridae (Driftwood catfishes) > Centromochlinae
Etymology: Tatia: Because of Mr. C. Tate Regan (Ref. 45335).
Eponymy: Dr Emmett Reid Dunn (1894–1956) was a leading American herpetologist of his time. [...] (Ref. 128868), visit book page.
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
South America: Upper Amazon in Ecuador and Colombia; central Amazon in Brazil; Caquetá River drainage in Colombia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 37098)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 1; Dorsal soft rays (total): 4 - 5; Anal soft rays: 9 - 10; Vertebrae: 35. Can be diagnosed by the unique combination of characters: nasal ossified with narrow medial
flanges partially sutured to lateral margin of mesethmoid; anal fin rays iii, 6-7; modified anal fin with short tip in mature males; first unbranched anal-fin ray with segments fused, last branched ray normally developed, not reduced; ribs 10; and vertebrae 35. Differs further by the following coloration details: contour of mouth dark, same color as head; posterior border of nuchal
shield usually dark; pectoral-fin spine usually dark brown; body with irregular blotches or stripes; presence of faint stripes or blotches in large specimens ; and caudal fin dark with whitish blotches. Distinguished from Tatia intermedia by having preanal length 70.0-75.0% SL, vs. 65.0-69.4% SL and interorbital distance 54.1-59.4% HL, vs. 60.1-63.6 HL (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
Human uses
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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).
