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Kneria rukwaensis Seegers, 1995

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Kneria rukwaensis
Male picture by Seegers, L.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Gonorynchiformes (Milkfishes) > Kneriidae (Shellears) > Kneriinae
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335);  rukwaensis: Refers to the Lake Rukwa basin, Tanzania and Zambia, where the center of distribution of the species is situated; an adjective (Ref. 26644).

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

; 淡水 居于水底的. 熱帶; ? - 20°C (Ref. 27292)

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

Africa: restricted to the western drainage of the Lake Rukwa system and to the upper Kalambo drainage (Tanganyika basin) in Tanzania and Zambia (Ref. 26644).
非洲: 侷限於魯誇湖系統的西方流域與 Kalambo 流域,坦噶尼喀流域上游了。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 26644)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 8-11; 臀棘 0; 臀鳍软条: 9 - 11. Diagnosis: dorsal fin origin behind pelvic fin origin; 96-104 lateral line scales; preanal length 70.7-76.2% SL; prepelvic length 46.7-52.6% SL; 9-11 anal fin rays (Ref. 26644). Lower lobe of caudal fin longer and narrower than upper lobe in fully adult males (Ref. 26644, 27292), the upper lobe as long as the proximal part of the caudal fin (Ref. 27292). Opercular disc of males characteristic, its posterior margin broad, and postopercular apparatus well developed and pillow-like (Ref. 26644).

生物学特性     字汇 (例如 epibenthic)

Maximum total length recorded is 7.44cm TL (Ref. 26644). Mostly found in stagnant pools and moderately flowing streams, only rarely in fast flowing currents; omnivorous; a female of 6.55cm TL releases about 400-500 ripe eggs of a diameter of 1.2mm (Ref. 27292). Apparently no marked spawning period (Ref. 44637). Male reported to change its coloration at night, being very pale with dark spots along the midline of the body (Ref. 27292).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

非洲: 侷限於魯誇湖系統的西方流域與 Kalambo 流域,坦噶尼喀流域上游了。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Seegers, L., 1995. Revision of the Kneriidae of Tanzania with description of three new Kneria species (Teleostei: Gonorhynchifromes). Ichthyol. Explor. Freshwat. 6(2):97-128. (Ref. 26644)

世界自然保护联盟红皮书 (Ref. 125652)

  最不相关 (LC) ; Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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特别资料

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网络资源

AFORO (otoliths) | 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 | 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 = 0.5001   [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).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).