Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Auchenipteridae
(Driftwood catfishes) > Centromochlinae
Etymology: Tatia: Because of Mr. C. Tate Regan (Ref. 45335); nigra: From the Latin 'nigra', referring to the dark color pattern of this species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Central Amazon basin in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.7 cm SL male/unsexed; (Ref. 79512)
Morphology | Morphometrics
soft rays: 10;
Vertebrae: 32. Diagnosed uniquely from other species of the genus Tatia by its brown body color and short postcleithral process about 60.0% HL. Can be differentiated also from other congeners by its postcleithral spine not reaching vertical through origin of dorsal fin; nasal with well developed medial flanges; and total vertebrae 32 (Ref. 79512).
Reaches sexual maturity above 8.0 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. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00683 - 0.04845), b=3.04 (2.81 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .