Pseudotropheus johannii Eccles, 1973
Bluegray mbuna
分类 / 名称 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: Pseudotropheus: Greek, pseudes = false + Greek, tropaion = defeat, a memorial of a fighting war, trophy; because of their specialized teeth were such an obvious feeding adaptation (Ref. 45335).
Eponymy: John Johns was a collector of Lake Malawi fishes for the aquarium trade. ‘Johann’ is a German variant of John. Unfortunately, we have no further information about him. (Ref. 128868), visit book page.
Etymology: Pseudotropheus: Greek, pseudes = false + Greek, tropaion = defeat, a memorial of a fighting war, trophy; because of their specialized teeth were such an obvious feeding adaptation (Ref. 45335).
Eponymy: John Johns was a collector of Lake Malawi fishes for the aquarium trade. ‘Johann’ is a German variant of John. Unfortunately, we have no further information about him. (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 底中水层性; pH range: 8.0 - 8.0; dH range: 9 - 19; 非迁移的 (Ref. 126106). 熱帶; 22°C - 25°C (Ref. 1672); 13°S - 14°S
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: endemic to Lake Malawi. Occurs in Masinje Rocks, Cape Ngombo.
非洲: 馬拉威湖的特有種。 出現於 Masinje 岩石，岬 Ngombo 。
非洲: 馬拉威湖的特有種。 出現於 Masinje 岩石，岬 Ngombo 。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
Males are brilliant sky blue to dark blue; the colors show a "checkerboard" pattern with alternating light and dark patches; several light-colored "egg spots" on their anal fin; females and juveniles bright yellow-orange in color (Ref. 44091).
Body shape (shape guide): fusiform / normal.
雄性是对深蓝色的色彩艳丽的天蓝色; 颜色显示 " 棋盘格 " 图案有交互的淡色与深色的区块; 在他们的臀鳍上的一些颜色较淡 " 卵斑点 "; 母鱼与稚鱼鲜黄色的-橘色的颜色.(参考文献 44091)
Body shape (shape guide): fusiform / normal.
雄性是对深蓝色的色彩艳丽的天蓝色; 颜色显示 " 棋盘格 " 图案有交互的淡色与深色的区块; 在他们的臀鳍上的一些颜色较淡 " 卵斑点 "; 母鱼与稚鱼鲜黄色的-橘色的颜色.(参考文献 44091)
Found in rocky habitats of shoreline areas (Ref. 58302). Omnivorous and feed on both plant and animal matter (Ref. 44091).
杂食性而且吃两者的植物动物.(参考文献 44091)
杂食性而且吃两者的植物动物.(参考文献 44091)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Maternal mouthbrooders; males establish territories and maintain a harem of females; female deposits eggs and picks them up in the mouth for incubation; male spreads out his anal fin showing the "eggs pots"; the females mistake these spots for her eggs and try to also take them inside her mouth; the male then releases his milt and the female takes them in, thus fertilizing the eggs inside her mouth (Ref. 44091). 非洲: 馬拉威湖的特有種。 出現於 Masinje 岩石，岬 Ngombo 。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 : Kullander, Sven O. | 合作者
Maréchal, C., 1991. Melanochromis. p. 258-265. 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. 5663)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
水族馆: 商业性
FAO - Publication: search | FishSource |
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网络资源
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基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01445 (0.00671 - 0.03113), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
2.0 ±0.0 se; based on diet studies. |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec<1000). |
|
渔业脆弱性 (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |