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: 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; 非迁移的. 熱帶; 7°S - 12°S
Africa: Lake Mweru and the swamps and saline lakes in Mweru-wa-Ntipa (Ref. 2), the lower (Ref. 2, 95585) and middle (Ref. 95585) Luapula River system and the Lufira River (upper Congo River basin) in Democratic Republic of the Congo and Zambia (Ref. 2). Introduced in Lake Kivu in Rwanda (Ref. 46152).
非洲: 在 Mweru 的湖 Mweru 與沼澤與鹹水湖-wa-Ntipa, 與 Luapula 河流域下游; 也在剛果的 Lufira 河。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 20.3, range 18 - 22.5 cm
Max length : 23.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2)
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 - 14; 臀棘: 3; 臀鳍软条: 9 - 12; 脊椎骨: 30 - 32. Diagnosis: scales on cheek in 2-3 rows; caudal scales variable, not on the inter-radial membranes except at the base; never stiffening the fin; genital papilla large and tuberculate or scalloped, tasseled in breeding males; generally lighter or darker olive-green; breeding male iridescent dark green to blue-black on head, body and vertical fins; red edge to dorsal and caudal fins (Ref. 2).
在 2-3 列中的在颊上的鳞片。 尾部的鳞片可变的, 不在动脉之间的薄膜上除了在基底之外; 没有硬挺的鳍。 生殖乳突大而长有小瘤或有荷叶边的, 在繁殖期的雄性中流苏了。 通常颜色淡或深橄榄绿色的。 繁殖期的雄鱼彩虹色的深绿色的到蓝黑色的在头部，身体与垂直的鳍上; 对背鳍与尾鳍鳍的红色边缘。
Young Oreochromis mweruensis feed on epiphytic filamentous algae in swampy areas (Ref. 2), but also accept small invertebrates and zooplankton, a tendency they lose with age (Ref. 52307). Adults feed on filamentous algae and detritus (Ref. 52307) and bottom deposits, but those that migrated to the deeper northern end feed almost exclusively on plankton (Ref. 2).
幼鱼 O. macrochir mweruensis 在沼泽的区域中吃附生植物的菌丝藻。 成鱼吃底部沈积层, 但是回游到的那些较深的北部末端吃几乎只在浮游生物上.(参考文献 2)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Spawns along the banks of lakes/rivers at an average depth of 12 to 13 m. Mating territory largely occupied by a low mound with 6-12 grooves or crests radiating from the small central concave area (star-shaped nest). Males build the star-shaped nests on a sandy substrates. 非洲: 在 Mweru 的湖 Mweru 與沼澤與鹹水湖-wa-Ntipa, 與 Luapula 河流域下游; 也在剛果的 Lufira 河。
Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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): 高度, 族群倍增时间少于 15个月 (tm=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
