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).
Taxonomic Remarks
Turner and Robinson 1991 (Ref. 55079) conclude that Oreochromis saka is a junior synonym of O. karongae (also Ref. 6150), although Turner et al. 1989 (Ref. 40180) reported O. squamipinnis to be most similar to O. saka and O. karongae the most divergent (also Ref. 55954).
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; 9°S - 15°S
Africa: Endemic to Lake Malawi.
非洲: 馬拉威湖的特有種。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 29.0, range 25 - ? cm
Max length : 36.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 4967)
背棘 (總數) : 15 - 17; 背的軟條 (總數) : 10 - 11; 臀棘: 3; 臀鰭軟條: 8 - 10; 脊椎骨: 30 - 32. Breeding males black, in some with white or yellowish dorsal lappets. Testes broad, white and sinuous when fully ripe. Lower pharyngeal toothed area with concave sides; median length of bone 1.2-1.3 times its width and 35.5-39.2 % length of head; blade 1.3-2.1 times median length of toothed area. Caudal fin scaly.
Body shape (shape guide): fusiform / normal.
繁殖期的雄性黑色, 在一些具有白色或淡黃色的背部垂部。 睪丸寬的﹐白色的與彎曲的當完全成熟的時候。 低的咽有齒的區域有凹的側邊; 硬骨 1.2-1.3 的平均長度倍於它的寬度與 35.5-39.2% 頭長; 倍有齒區域的平均長度的葉片 1.3-2.1。 尾鰭有鱗的。
Occurs at a temperature range of 21.5-29.0 °C (Ref. 2). Inhabits very shallow and vegetated regions. Feeds on diatoms and debris collected from the bottom and from between vegetation (Ref. 5595).
生存在一個 21.5-29.0 °C 的溫差。 (參考文獻 2) 棲息於很淺而長滿植物的區域。 吃矽藻,而且殘礫採集自底部了與從在植物之間.(參考文獻 5595)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Forms breeding colonies in water of 2 to 4 m depth off reedy shores. 非洲: 馬拉威湖的特有種。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
漁業: 商業性; 水族館: 商業性
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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]. |
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Bayesian length-weight
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a=0.01514 (0.00690 - 0.03319), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.0 ±0.00 se; based on food items. |
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Generation time |
2.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.56-0.72; tm=3; tmax=5). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (23 of 100). 🛈 |
價格種類 (Ref. 80766) |
Unknown.
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