分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Tilapia: Bechuana, African native thiape = fish (Ref. 45335).
More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; 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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm TL 雄鱼/尚未辨别雌雄; (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范围从 19 到 27个 ° C. 的水温发现于深的阴沟入口处湖 (100 公尺深或更多，例如在湖 Otjikoto 中引入了族群, 那米比亚) 主要吃藻类与硅藻.(参考文献 6465) 通常聚集, 繁殖而且吃接近垂直的海岸。 使用狭窄的架繁殖,具有建立而且防护领土,双亲保卫而且倾向卵。 受威胁的外来种由于地方地下水资源的消耗而且影响.(参考文献 7248) 个体倾向显现范围从纯粹的黑色到有斑点的黑色与蓝色的, 粉红的与白色的不同的彩色斑纹.(参考文献 27829)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
极度濒危 (CR) (B1ab(iii)+2ab(iii)); Date assessed: 01 March 2007
人类利用
水族馆: 商业性
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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).
营养阶层 (Ref.
69278): 2.0 ±0.00 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
