分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 6.0 - 6.0; dH range: 5 - 8. 熱帶; 25°C - 29°C (Ref. 2060); 7°N - 6°N
Asia: restricted to the Kalu basin, Sri Lanka.
亞洲: 發現只在卡盧河到 Nilwala 流域，斯里蘭卡的中央集水區中。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6028)
背的軟條 (總數) : 10; 臀鰭軟條: 8 - 9; 脊椎骨: 29. Rasboroides vaterifloris is distinguished from its congener R. nigromarginatus by the location of pelvic-fin origin which is midway between the pectoral-fin base and anal-fin origin (vs. closer to anal-fin origin), by having the dorsal margin of the operculum more or less straight (vs. with a deep indentation), and the dorsal profile of the head approximately straight (vs. slightly concave) behind the level of the eye in males. Males of R. vaterifloris can be diagnosed from
those of R. nigromarginatus by having a greater interorbital width (29-33 % HL, vs. 17-22) and a greater internarial width (19-21 % HL, vs. 11-17), while females differ by having a greater anal-fin depth (23.5-24.8 % SL, vs. 17.4-22.7), a greater interorbital width (25-33 % HL, vs. 16-21), a greater caudal-peduncle depth (12.4-13.4 % SL, vs. 10.4-12.3) and a lesser caudal-peduncle length (18.6-21.2 % SL, vs. 21.1-25.0). It differs from R. pallidus and R. rohani by having the dorsal-fin origin 1 scale-width (vs. 3 scale-widths) behind the pelvic-fin origin and a
lesser body depth of 31.0-32.8 % SL (vs. 33.0-37.5 in R. pallidus and 33.3-40.0 in R. rohani) (Ref. 94541).
Occurs in shallow, cool, clear, quiet, heavily shaded forest streams, usually with a silty substrate and often in areas with a large amount of leaf debris in the water. Feeds on terrestrial insects (Diptera and Coleoptera, see Ref. 6469) and detritus. Males slimmer and brightly colored than females.
出現於淺灘, 冷的﹐清澈的, 安靜,很重地遮蔽了森林溪流, 通常有一個淤泥的底部而且常見於區域中在水具有一個大量的樹葉碎片。 吃陸棲的昆蟲 (雙翅類與鞘翅目, 見參考文獻 6469) 與碎屑。 雄性減肥者與色彩鮮豔的超過雌性。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
A prolific breeder. The courtship ritual is frenetic; several batches of about 20 eggs are spawned among submerged marginal vegetation during the course of about 30 minutes. The eggs sink, and hatch in about 36 hours. The free-swimming fry are very delicate and sensitive to water conditions. 亞洲: 發現只在卡盧河到 Nilwala 流域，斯里蘭卡的中央集水區中。
Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
瀕危 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 05 August 2019
人類使用
漁業: 沒有興趣; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00390 - 0.02036), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.8 ±0.32 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
