Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Trichomycteridae
(Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); guaraquessaba: Named after Munucipio de Guaraqueçaba and the Area de Proteçao Ambiental de Guaraqueçaba, the area of occurrence of this species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Rio Bracinho in Paraná, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.2 cm SL male/unsexed; (Ref. 56678)
Morphology | Morphometrics
Inhabits river with clear water, falls, rapids and moderate current flowing over the rocky beds, intercalated with pools (Ref. 56678). Occurs in association with stones and plant debris on the bottom (Ref. 56678).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wosiacki, W.B., 2005. A new species of Trichomycterus (Siluriformes: Trichomycteridae) from south Brazil and redescription of T. iheringi (Eigenmann). Zootaxa 1040:49-64. (Ref. 56678)
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=0.00794 (0.00302 - 0.02087), b=2.98 (2.75 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec < 100).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .