Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar dasar (demersal); potamodromous (Ref. 51243). Subtropical
South America: Lower Paraná including the Iguazú, Paraguay, Río de la Plata and Dulce Rivers.
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 60.5 cm TL jantan/; (Ref. 79585); Berat maksimum terpublikasi: 1.8 kg (Ref. 79585)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 2; duri punggung lunak (Keseluruhan (total)) : 7; Duri dubur: 1; Sirip dubur lunak: 4. This species is distinguished by the following characters: teeth bifid teeth (vs. spoon-shaped); dark spots on a light background (vs light spots on a dark background or not spotted); 4 rough lateral ridges on flanks (vs. absent); 26-29 lateral series plates (vs. < 28 in several species, 31-32 in H. laplatae); 1-2 plates bordering posterior margin of the supraoccipital bone (vs. 3-4 in H. laplatae); differs from H. affinis, H. punctatus, H. ancistroides by having inter-dorsal distance 14.4-19.5% in SL (vs. 18.9-21.0%); head depth 49.0-71.6% in HL (vs. 48.2-49.9); differs from H. spiniger by having fine lateral ridges with odontodes posteriorly inclined (vs. large lateral ridges with odontodes in all directions), weak lateral ridges in caudal peduncle (vs. strong), mid lateral ridge from first plate (vs. ridge from 2nd or 3rd plates); adult of this species (> 12.0 cm SL) can be distinguished from adult H. spiniger by having a strong ridge on temporal plate (vs. very week) (Ref. 121236).
Facultative air-breathing in the genus (Ref. 126274); Occurs in rivers where substrate from which specimens were obtained was composed chiefly of muddy sand. This species was found in moderately oxygenated waters (6.1-9.1 mg/l) with moderate current; water turbidity 23.7-442 NTU, conductivity 1.087-2.654 μS/cm, pH 7.2-9.2, and temperature 16.8-27.8°C (Ref. 121236).
Life cycle and mating behavior
Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva
Cardoso, Y.P., F. Brancolini, L. Protogino, A. Paracampo, S. Bogan, P. Posadas and J.I. Montoya-Burgos, 2019. An integrated approach clarifies the cryptic diversity in Hypostomus Lacépède 1803 from the Lower La Plata Basin. Anais da Academia Brasileira de Ciéncias 91(2):e20180131: [1-25]. (Ref. 121236)
Status IUCN Red List (Ref. 130435)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Akuarium: Komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
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=0.01778 (0.01450 - 0.02181), b=2.96 (2.93 - 2.99), in cm total length, based on LWR estimates for this species (Ref.
93245).
Daya lenting (Ref.
120179): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
