Oreochromis rukwaensis (Hilgendorf & Pappenheim, 1903)
Lake Rukwa tilapia
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Oreochromis rukwaensis
Male 拍攝者 Turner, G.F.
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Male 拍攝者 Turner, G.F.
分類 / 名稱 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: 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.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
; 淡水 底中水層性. 熱帶; 7°S - 9°S
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | 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 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 15 - 17; 背的軟條 (總數) : 11 - 13; 臀棘: 3; 臀鰭軟條: 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.
尾鰭沒有鱗片除了基部地之外。 在 2 列中的在頰上的鱗片。 脊椎骨 30. 外部的齒二頭齒,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邊緣到背鰭與尾鰭鰭; 腹鰭黑色或淡黃色的與長的生殖流蘇橘黃色的; 在鰓蓋與吻上的彩虹色的大理石紋。
Body shape (shape guide): short and / or deep; Cross section: compressed.
尾鰭沒有鱗片除了基部地之外。 在 2 列中的在頰上的鱗片。 脊椎骨 30. 外部的齒二頭齒,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邊緣到背鰭與尾鰭鰭; 腹鰭黑色或淡黃色的與長的生殖流蘇橘黃色的; 在鰓蓋與吻上的彩虹色的大理石紋。
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).
棲息於湖與河。 (參考文獻 4967) 雄性在淺水區中構造領土。 在哪裡有充足的空間, 每領土在大而圓形凹窪的中央中有了中央凸起的交配平臺.(參考文獻 2)
棲息於湖與河。 (參考文獻 4967) 雄性在淺水區中構造領土。 在哪裡有充足的空間, 每領土在大而圓形凹窪的中央中有了中央凸起的交配平臺.(參考文獻 2)
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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。
主要參考資料
上傳您的推薦信 | 參考文獻 | 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
對人類具威脅
無害處的
人類使用
漁業: 商業性
FAO - Publication: search | FishSource |
更多資訊
解剖學
鰓區
腦部
耳石
鰓區
腦部
耳石
生理學
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
遺傳學
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
工具
特別的報告
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網路資源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | 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 | 樹狀分類階層 | Wikipedia: 去, 搜尋 | World Records Freshwater Fishing | 動物學的記錄
基於模型的估計
|
系統發育多樣性指數 (參考文獻 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 | |
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回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
|
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |
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價格種類 (Ref. 80766) |
Unknown. |