分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: Tilapia: Bechuana, African native thiape = fish (Ref. 45335).
More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 7.0 - 7.8; dH range: ? - 15. 熱帶; 22°C - 26°C (Ref. 2059); 19°S - 21°S
Africa: endemic to Lake Guinas, Namibia. Introduced to Lake Otjikoto and several reservoirs in Namibia. Also occurs in subterranean rivers.
非洲: 湖 Guinas ，那米比亞的特有種。 在那米比亞引進了湖 Otjikoto 與一些水庫。 也生活於地下的河中。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6465)
Found in deep sinkhole lakes (100 m deep or more, e.g. introduced population in Lake Otjikoto, Namibia) with moderately clear water and with water temperatures ranging from 19 to 27°C (Ref. 6465). Omnivorous (Ref. 52307), but feeds mainly on algae and diatoms (Ref. 6465, 52307). Generally congregate, breed and feed from the near-vertical shores. Use narrow shelves for breeding, with established and defended territories, both parents guard and tend eggs. Threatened due to depletion of local groundwater resources and impact of introduced species (Ref. 7248). Individuals tend to display different color patterns ranging from pure black to mottled black and blue, pink and white (Ref. 27829). Biparental open-spawning species (Ref. 52307).
用普通清澈的水而且範圍從 19 到 27個 ° C. 的水溫發現於深的陰溝入口處湖 (100 公尺深或更多，例如在湖 Otjikoto 中引入了族群, 那米比亞) 主要吃藻類與矽藻.(參考文獻 6465) 通常聚集, 繁殖而且吃接近垂直的海岸。 使用狹窄的架繁殖,具有建立而且防護領土,雙親保衛而且傾向卵。 受威脅的外來種由於地方地下水資源的消耗而且影響.(參考文獻 7248) 個體傾向顯現範圍從純粹的黑色到有斑點的黑色與藍色的, 粉紅的與白色的不同的彩色斑紋.(參考文獻 27829)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Nests are built on narrow rocky ledges and competition for these nest sites is very strong. 非洲: 湖 Guinas ，那米比亞的特有種。 在那米比亞引進了湖 Otjikoto 與一些水庫。 也生活於地下的河中。
Teugels, G.G. and D.F.E. Thys van den Audenaerde, 1991. Tilapia. p. 482-508. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5163)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
極危 (CR) (B1ab(iii)+2ab(iii)); Date assessed: 01 March 2007
人類使用
水族館: 商業性
工具
特別的報告
下載 XML
網路資源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00674 - 0.03099), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.0 ±0.00 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).
