分類 / Names
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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Megalamphodinae
Etymology: Megalamphodus: Greek, megas, megalos = great + Greek, amphi = in both sides + Greek, odous = teeth (Ref. 45335).
More on author: Steindachner.
Issue
Ornamental species. See Weitzman & Palmer (1997a,b) for notes on the taxonomy and synonym.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 5.0 - 7.8; dH range: 10 - 25. Tropical; 22°C - 26°C (Ref. 12468)
South America: Amazon, Guaporé and Paraguay River basins.
Length at first maturity / サイズ / 重さ / 年齢
成熟: Lm 2.1 range ? - ? cm
Max length : 4.0 cm SL オス/雌雄の選別がない; (Ref. 81048)
A gregarious species which positions itself near the surface between the stems of emerging plants. It is frequently found in stagnant waters. They are generally peaceful, but when there are too many of them during feeding, they bite each other's fins (Ref. 12225). Feeds on worms, crustaceans, insects and plants (Ref. 7020). Oviparous (Ref. 205). This species is part of a complex of `blood' tetras, hybrids of which are commonly offered in the aquarium trade. Aquarium keeping: aggressive; in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous (Ref. 205). In captivity, spawning is preceded by vigorous driving by the male during the early hours of the day and eggs mostly sink to the bottom (Ref. 7020).
Weitzman, S.H. and L. Palmer, 1997. A new species of Hyphessobrycon (Teleostei: Characidae) from Neblina region of Venezuela and Brazil, with comments on the putative 'rosy tetra clade'. Ichthyol. Explor. Freshwat. 7(3-4):209-242. (Ref. 13676)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 高い商業の; 水族館・水槽: 高い商業の
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 (参照
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00747 - 0.02436), b=3.15 (3.00 - 3.30), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.1 ±0.38 se; based on food items.
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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