Oreochromis rukwaensis (Hilgendorf & Pappenheim, 1903)
Lake Rukwa tilapia
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Oreochromis rukwaensis
Male 图片提供人 Turner, G.F.
照片 | 谷歌图片
Male 图片提供人 Turner, G.F.
分类 / 名称 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: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on authors: Hilgendorf & Pappenheim.
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on authors: Hilgendorf & Pappenheim.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 底中水层性. 熱帶; 7°S - 9°S
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: Lake Rukwa (Ref. 2, 118630) and upper Great Ruaha River in Tanzania (Ref. 118630).
非洲: 在坦尚尼亞的魯誇湖。
非洲: 在坦尚尼亞的魯誇湖。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 15 - 17; 背的软条 (总数) : 11 - 13; 臀棘: 3; 臀鳍软条: 10 - 11; 脊椎骨: 30. Diagnosis: Typical tilapiine cichlid, relatively deep bodied, with rather a small head (Ref. 118638). Other distinguishing characters are: caudal fin free of scales except basally; vertebrae 30; scales in lateral line series 30-32; dorsal spines XV-XVII; soft rays usually 11-13; outer teeth bicuspid, in mature fishes occasionally with a few tricuspids; lower gill-rakers 20-22; interorbital region in adults 34.5-40.0% length of head (Ref. 2). Ripe males have a dark body and fins, almost black, with bright red/orange margins on the dorsal and caudal fins; vertical barring can be noticeable in freshly caught specimens; head region in ripe males has a bluish sheen; ripe males have yellow-orange tassels; females and subadult males plain silver/grey with 6-7 post-opercular vertical stripes and bluish snout present in freshly caught specimens (Ref. 118638).
Body shape (shape guide): short and / or deep; Cross section: compressed.
尾鳍没有鳞片除了基部地之外。 在 2 列中的在颊上的鳞片。 脊椎骨 30. 外部的齿二头齿,偶然地具有一些三尖瓣。 繁殖期的雄性主要地黑色的有橘色的边缘到背鳍与尾鳍鳍; 腹鳍黑色或淡黄色的与长的生殖流苏橘黄色的; 在鳃盖与吻上的彩虹色的大理石纹。
Body shape (shape guide): short and / or deep; Cross section: compressed.
尾鳍没有鳞片除了基部地之外。 在 2 列中的在颊上的鳞片。 脊椎骨 30. 外部的齿二头齿,偶然地具有一些三尖瓣。 繁殖期的雄性主要地黑色的有橘色的边缘到背鳍与尾鳍鳍; 腹鳍黑色或淡黄色的与长的生殖流苏橘黄色的; 在鳃盖与吻上的彩虹色的大理石纹。
This species is found both in large lakes and small rivers (Ref. 4967, 118638). A maternal mouthbrooder (Ref. 118638). Males construct territories in shallow water; where there was ample space they were similar in structure and grouping to those of Oreochromis variabilis, each territory consisting of a central raised mating platform in the middle of a large circular depression (Ref. 2). It is a major component of the fisheries catch in Lake Rukwa and the Mtera Dam (Ref. 118638). Strong aquaculture potential given broad habitat requirements (Ref. 118638). IUCN conservation status is stated as vulnerable D2, declining population trend (Ref. 118638).
栖息于湖与河。 (参考文献 4967) 雄性在浅水区中构造领土。 在哪里有充足的空间, 每领土在大而圆形凹洼的中央中有了中央凸起的交配平台.(参考文献 2)
栖息于湖与河。 (参考文献 4967) 雄性在浅水区中构造领土。 在哪里有充足的空间, 每领土在大而圆形凹洼的中央中有了中央凸起的交配平台.(参考文献 2)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
A maternal mouthbrooder (Ref. 118638). Males construct territories in shallow water; where there was ample space they were similar in structure and grouping to those of Oreochromis variabilis, each territory consisting of a central raised mating platform in the middle of a large circular depression; males occupy these territories at sunrise, when water temperature was 12°C and they left for deeper water in the late afternoon when the temperature rose to 25°C (Ref. 2). It exhibits pseudo-spawning and then true spawning follows (Ref. 2). 非洲: 在坦尚尼亞的魯誇湖。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 : Kullander, Sven O. | 合作者
Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)
CITES
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
解剖学
鳃区
大脑
耳石
鳃区
大脑
耳石
生理学
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
遗传学
基因组
遗传学
异质性
遗传率
基因多样性
基因组
遗传学
异质性
遗传率
基因多样性
工具
特别资料
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网络资源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: 属, 种 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录
基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01862 (0.00830 - 0.04177), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
| 0 | |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
|
渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |
|
价格分类 (Ref. 80766) |
Unknown. |