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: Rhamphochromis: Greek, rhamphos = bill, peak + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Boulenger.
Issue
Quote Turner et al. (Ref. 55949): "We consider that both R. leptosoma and R. melanotus are probably junior synonyms of R. esox. If this is accepted, R. esox can be considered the most distinctive and readily identified species of the genus."
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; pH range: 7.4 - 8.5; dH range: 5 - 30; 深度上下限 2 - 65 m (Ref. 55949). 熱帶; 23°C - 27°C (Ref. 13614); 9°S - 15°S
Africa: Endemic to Lake Malawi.
非洲: 馬拉威湖的特有種。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 19 - ? cm
Max length : 42.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55949)
简单描述
检索表 | 型态特徵 | 形态测量图
Diagnosis: elongated and very streamlined shape; body in cross-section more rounded than congenerics; frequently exhibits a horizontal stripe (Ref. 55949).
鉴别: 瘦长的与非常流线型的形状; 身体横切面更圆形的超过同属的; 时常展现一条水平的斑纹。 (参考文献 55949)
描述: 大又相当圆筒形的种具有非常细长的身体; 下颌非常深的有平滑的表面; 齿短, 直线与空隙大的, 通常看不见的当嘴巴被关闭的时候.(参考文献 55949)
体色 countershaded, 深灰色的背面通常有一个蓝色的金属彩虹色活着时; 在侧面上通常有一条不明显的深色水平的斑纹; 腹鳍与臀鳍或灰色的-白色或橘色的; 有时在臀鳍上的 2-9 橘黄色的 eggspots.(参考文献 55949)
Inhabits the open water (Ref. 5595). Widely distributed in shelf and rocky reef zones, usually where the bottom is fairly shallow; rarely found offshore; small juveniles widely distributed in the littoral zone in swampy, sandy and rocky habitats; adults regularly encountered near sandy beaches in the shallows (Ref. 55949). Feeds on fish species like the small Utaka and the lake sardine Usipa (Engraulicypris sardella) (Ref. 5595).
栖息于开放水域。 (参考文献 5595) 广泛地分布于大陆棚与岩石的礁区中, 通常底部是非常浅的地方; 很少地发现于外海了; 小的稚鱼广泛分布于在沼泽又沙与岩石的栖息地的海滨区域。 (参考文献 55949) 捕食鱼类像小的 Utaka 与湖沙丁鱼 Usipa( 沙丁鳀波鱼〔Engraulicypris sardella〕 ) 的种。 (参考文献 5595)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 馬拉威湖的特有種。
Maréchal, C., 1991. Rhamphochromis. p. 422-424. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5689)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
渔业: 商业性; 水族馆: 商业性
工具
特别资料
下载 XML
网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.2 ±0.73 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
