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: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); arecuta: Named from a Guaraní word arecutá, meaning loricariid fish.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; pH range: 6.8 - 7.1. Subtropical
South America: Paraná river in Argentina.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.3 cm SL male/unsexed; (Ref. 91776)
Morphology | Morphometrics
soft rays: 4. Differs from its congeners by the following combination of characters: dorsum of head and body and all fins dark grey covered by numerous rounded cream dots; ventral surface of head and belly a plain cream color; 66-85 premaxillary/dentary teeth; cleithral width 3.0-3.4 in SL; abdominal length 3.9-4.5 in SL; eye diameter 5.2-6.2 in HL; pelvic fin-spine length 3.9-4.5 in SL; caudal peduncle depth 8.3-9.6 in SL; upper caudal-ray length 2.8-3.6 in SL; lower caudal-ray length 2.4-3.5 in SL; right mandibular ramus 3.9-4.6 in HL; dorsal spine length with mean 31.6 % SL; length of right mandibular ramus 3.9-4.6 in HL; abdominal length 3.9-4.5 in SL; head depth 1.6-1.7 in HL;, interorbital width 2.6-3.0 in HL; predorsal length 2.3-2.6 in SL; pectoral-fin spine length 2.8-3.3 in SL; caudal peduncle length 3.0-3.6 in SL; scutes along lateral line 26-28 (mode 27); scutes between end of dorsal fin to adipose fin 5-6 (mode 6) ; scutes from adipose to caudal fins 3-5 (mode 5), and scutes from anal to caudal fins 12-14 (mode 14) (Ref. 91776).
Found in coastal areas of main river channel with bottom composed mostly by large boulders of sandstone with patches of sand and pebbles. Occurs in well oxygenated waters having moderate current speed, about 0.60 m s-1, water transparency of 1.5-2.40 m and conductivity of 50.9-59.6 ?S cm-1 . Sympatric with Hypostomus commersoni, H. cochliodon,, H. uruguayensis, H. latifrons, H. ternetzi, H. luteomaculatus, H. microstomus, and H. boulengeri (Ref. 91776).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cardoso, Y.P., A. Almirón, J. Casciotta, D. Aichino, M.S. Lizarralde and J.I. Montoya-Burgos, 2012. Origin of species diversity in the catfish genus Hypostomus (Siluriformes: Loricariidae) inhabiting the Paraná river basin, with the description of a new species. Zootaxa 3453:69-83. (Ref. 91776)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00707 - 0.03721), b=2.91 (2.73 - 3.09), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .