分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の; potamodromous (Ref. 51243). Subtropical
South America: Lower Paraná including the Iguazú, Paraguay, Río de la Plata and Dulce Rivers.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 60.5 cm TL オス/雌雄の選別がない; (Ref. 79585); 最大公表体重: 1.8 kg (Ref. 79585)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 7; 肛門の骨: 1; 臀鰭: 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 | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
Human uses
水産業: 商業; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
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).
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
