Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Hypostominae
Etymology: Transancistrus: Derived from the Latin word 'trans', meaning across, over, or on the other side of, in reference to the distribution of this genus across rivers draining the Pacific slope of the Andes Mountains in Ecuador, and 'ancistrus', a root name for many Hypostominae genera having clusters of enlarged evertible cheek odontodes.
draining the Pacific slope of the Andes Mountains in Ecuador,
and “ancistrus,” a root name for many Hypostominae genera
having clusters of enlarged evertible cheek odontodes..
Environment / Climate / Range
Freshwater; demersal. Tropical, preferred ?
South America: Guayas River basin in Ecuador.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 104644)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lujan, N.K., V. Meza-Vargas and R. Barriga-Salazar, 2015. Two new Chaetostoma group (Loricariidae: Hypostominae) sister genera from opposite sides of the Andes Mountains in Ecuador, with description of one new species. Copeia 103(3):651-663. (Ref. 104644)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00577 - 0.02877), b=2.96 (2.78 - 3.14), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .