Laubuka varuna

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Laubuka varuna Pethiyagoda, Kottelat, Silva, Maduwage & Meegaskumbura, 2008

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Teleostei > Cypriniformes (Carps) > Danionidae (Danios) > Danioninae
Etymology: varuna: The specific name is Sinhala for western, in reference to the restricted distribution of this species to the west-flowing Kelani and Kalu drainages of Sri Lanka.
More on authors: Pethiyagoda, Kottelat, Silva, Maduwage & Meegaskumbura.

Environment: milieu / climate zone / 深度上下限 / distribution range 生态学

; 淡水 底中水层性.

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Asia: Sri Lanka.

大小 / 重量 / 年龄

成熟度: Lm ?  range ? - ? cm
Max length : 6.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 75997)

简单描述 检索表 | 型态特徵 | 形态测量图

This species is distinguished from all its congeners by the following set of characters: lateral line complete, with 31-33 + 1-2 scales; scales in transverse line on body ½6-½ 7/1/2 ½-3½ and on caudal peduncle ½3-½ 4/1/1 ½; body depth 27.9-32.4% SL; and lower jaw smooth, lacking tubercles on skin over dentary (Ref. 75997). It can be further distinguished from its Sri Lankan congeners by the following: a vertically elongate cleithral spot with greatest dimension greater than or subequal to the eye diameter; neuromast fields on the lower jaw are indistinct or altogether absent; adpressed unbranched pelvic-fin ray is usually not reaching beyond the anal-fin origin; often with 10-12 circumpeduncular scales and the 31-33 lateral-line scale (Ref. 127713).
Body shape (shape guide): fusiform / normal; Cross section: compressed.

生物学特性     字汇 (例如 epibenthic)

Inhabits rainforest streams (Ref. 75997).

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


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

Pethiyagoda, R., M. Kottelat, A. Silva, K. Maduwage and M. Meegaskumbura, 2008. A review of the genus Laubuca in Sri Lanka, with description of three new species (Teleostei: Cyprinidae). Ichthyol. Explor. Freshwat. 19(1):7-26. (Ref. 75997)

世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)

  濒危 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 07 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (参考文献 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00422 - 0.02262), b=3.04 (2.84 - 3.24), 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):  3.2   ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100). 🛈