分類 / Names
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 author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水; 半鹹淡水 底中水層性; 非遷移的. 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 / 年齡
Maturity: Lm 20.3, range 18 - 22.5 cm
Max length : 23.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 2)
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 - 14; 臀棘: 3; 臀鰭軟條: 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 列中的在頰上的鱗片。 尾部的鱗片可變的, 不在動脈之間的薄膜上除了在基底之外; 沒有硬挺的鰭。 生殖乳突大而長有小瘤或有荷葉邊的, 在繁殖期的雄性中流蘇了。 通常顏色淡或深橄欖綠色的。 繁殖期的雄魚彩虹色的深綠色的到藍黑色的在頭部，身體與垂直的鰭上; 對背鰭與尾鰭鰭的紅色邊緣。
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).
幼魚 O. macrochir mweruensis 在沼澤的區域中吃附生植物的菌絲藻。 成魚吃底部沈積層，但是迴游到較深的北部末端幾乎只的那些以浮游生物為食。 (參考文獻 2)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 16 February 2009
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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).
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tm=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
