分類 / Names
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Characiformes (Characins) >
Anostomidae (Headstanders)
Etymology: Leporinus: Latin, lepus, leporis = rabbit (Ref. 45335); amazonicus: Named after the Rio Amazonas, where all the type series comes from.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 外洋の. Tropical
South America: Brazil. Rio Amazonas basin near Manaus. The species may be expected to occur along most of floodplain habitats of the Rio Solimões-Amazonas in the Brazilian states of Amazonas and Pará.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 25.3 cm SL オス/雌雄の選別がない; (Ref. 125975); 最大公表体重: 304.40 g (Ref. 125975)
簡単な記述
検索表 | 形態学 | 形態計測学
Leporinus amazonicus belongs to the friderici-group, as defined by Géry (1977) and
Garavello (1979). It differs from most of congeners (except L. fasciatus, L. affinis and L. y-ophorus) by the high lateral line scale count (45–47 versus 43 or fewer), and from these species by the color pattern (brownish- grey with one small and elongated dark blotch on the flanks in L. amazonicus vs. yellow ground color with
several single or divided vertical dark bars on the side in the others). Leporinus amazonicus is morphologically similar to the slender bodied species L. cylindriformis Borodin, 1929 and L. brunneus Myers, 1950, but differs from them by the higher lateral line scale count (45–47 versus 41–43 in L. cylindriformis and 36–42 in L. brunneus) and by a different color pattern (lateral blotch occupying 2–4 horizontal scales in L. amazonicus versus 5–7 in L. cylindriformis, and absence of well defined blotches on the body sides in L. brunneus) (Ref. 76907).
Body shape (shape guide): elongated.
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Distinct pairs breed on densely grown weedy places (Ref. 205).
Dos Santos, G.M. and J. Zuanon, 2008. Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes). Zootaxa 1815:35-42. (Ref. 76907)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00566 - 0.01766), b=3.05 (2.90 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.3 ±0.1 se; based on size and trophs of closest relatives
回復力 (参照
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
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