分類 / Names
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Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Smiliogastrinae
Etymology: Pethia: Pethia is the generic vernacular name for small cyprinids in Sinhala.
More on author: Günther.
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: 6.0 - 6.5; dH range: 5 - 12. Tropical; 22°C - 26°C (Ref. 1672); 8°N - 6°N
Asia: restricted to forest streams from the Kelani to Nilwala basins in Sri Lanka. It occurs in hilly areas up to about 300 m elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka are said to have diminished in number due to the aquarium export trade.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 6.0 cm TL オス/雌雄の選別がない; (Ref. 6398); 6.7 cm TL (female)
Inhabits clear, cool, shady streams in forested areas, on gravel or sand substrate. Sometimes found in pools of quiet water in the margins of clear streams and rivers (Ref. 6471). Bred in captivity. Spawns in shallow water among marginal weeds. Eggs (>100) hatch in 1-2 days; fry are free-swimming after 24 h (Ref. 6702). Feeds mainly on filamentous algae and detritus (Ref. 6703). Males brightly colored and with darker fins. Popular aquarium fish. Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 80 cm (Ref. 51539).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 興味がない; 水族館・水槽: 高い商業の
用具
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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=0.01047 (0.00454 - 0.02413), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.0 ±0.00 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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