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Pseudotropheus johannii Eccles, 1973

Bluegray mbuna
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Image of Pseudotropheus johannii (Bluegray mbuna)
Pseudotropheus johannii
Male picture by Hagblom, F.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | 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).

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 底中水层性; pH range: 8.0 - 8.0; dH range: 9 - 19. 熱帶; 22°C - 25°C (Ref. 1672); 13°S - 14°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 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 。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5663)

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).
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)

生物学特性     字汇 (例如 epibenthic)

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)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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 Upload your references | 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)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 20 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: ; 水族馆: 商业性
FAO - Publication: search | FishSource |

更多信息

Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
生态学
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
Recruitments
Abundances
Life cycle
繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
仔鱼
稚鱼动力学
Distribution
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脑重体重比
Otoliths
Physiology
Body compositions
Nutrients
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游泳类型
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Visual pigment(s)
鱼的声音
Diseases / Parasites
Toxicities (LC50s)
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遗传学
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水产养殖描述
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参考文献

工具

特别资料

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网络资源

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | 公众的水族馆 | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.0   ±0.0 se; based on diet studies.
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec<1000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
价格分类 (Ref. 80766):   Unknown.