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Oreochromis placidus (Trewavas, 1941)

Black tilapia
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Oreochromis placidus
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South Africa country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from coastal north-east Natal to the Lake St. Lucia catchment (Ref. 13332).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Trewavas, E. and G.G. Teugels, 1991
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cichliformes (Cichlids, convict blennies) 鱸形目 (Cichlids, convict blennies) > Cichlidae (Cichlids) 麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
  More on author: Trewavas.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水; 半咸淡水 底中水层性.   熱帶; 13°S - 28°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: Lower Zambezi and southwards in the lower parts of the Sabi, Lundi, Pungwe and Buzi Rivers (Ref. 5166); also Ruvuma River on the Tanzanian-Mozambique border; Lake Rutumba, Lupululu system, and the Lupuledi west of Lindi (Ref. 5166). Previously, two subspecies were recognized: Oreochromis placidus placidus and Oreohromis placidus ruvumae.
非洲: 在 Sabi , Lundi , Pungwe 與 Buzi 河的部份下游中的尚比西河下游與南方。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 35.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2); 最大体重: 1.1 kg (Ref. 52193)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 16 - 18; 背的软条 (总数) : 10 - 13; 臀棘: 3 - 4; 臀鳍软条: 8 - 11; 脊椎骨: 29 - 31.
银色到铁-灰色的, 腹面略白的。 繁殖期的雄性在头部与身体有咽喉与所有的鳍黑色上非常深灰色; 具有一个在背部上的红色或橘色的边缘而且在鳃盖上具有一个灰色或黑色的大理石纹。

生物学特性     字汇 (例如 epibenthic)

Prefers quiet pools with marginal vegetation; it has been reported only from fresh water and low altitudes and latitudes, so that its salinity and temperature tolerances are probably narrower than those of O. mossambicus (Ref. 2).

偏爱静止的池水,有杂草丛的地方。 曾经报告只从淡水与低海拔地区与纬度, 所以它的盐度与容忍温度是可能窄于 O. mossambicus 的.(参考文献 2)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

非洲: 在 Sabi , Lundi , Pungwe 與 Buzi 河的部份下游中的尚比西河下游與南方。

主要参考文献 Upload your references | 参考文献 | 合作者 : Kullander, Sven O. | 合作者

Trewavas, E. and G.G. Teugels, 1991. Oreochromis. p. 307-346. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Checklist of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5166)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 01 May 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 商业性
FAO(Publication : search) | FishSource |

更多信息

Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
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Population dynamics
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Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
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繁殖
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参考文献

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特别资料

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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes(, ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.00827 - 0.04391), b=3.01 (2.82 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100).
价格分类 (Ref. 80766):   Unknown.