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Cypriniformes (Carps) >
Danionidae (Danios) > Danioninae
Etymology: hema: Name from Sanskrit term for gold, referring to the golden hue of live specimens; noun in apposition.
Environment: milieu / Zona climática / intervalo de profundidade / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: Sri Lanka.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 5.6 cm SL macho/indeterminado; (Ref. 127713)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
This species is distinguished from its congeners by the following set of characters: a danionine notch formed by a strong anterior curvature of dentary; branched pelvic-fin rays 6; lateral line complete, perforated scales 33-35; circumpeduncular scales 12-14; predorsal scales 18-21; branched anal-fin rays usually 18 1/2 - 20 1/2 (rarely 17 1/2 or 22 1/2); scales in transverse line 1/2 6 - 1/2 7 + 1 + 2 1/2; branched dorsal-fin rays modally 8 1/2 (rarely 7 1/2 or 9 1/2) ; cleithral spot small, rounded, its greatest dimension less than eye diameter; lower jaw with dense neuromast fields; a rudimentary maxillary barbel present; and no distinct vertical bands in body (Ref. 127713).
Cross section: compressed.
Occurs mainly from the headwaters of the Gal basin in the Kotagama and Nilgala areas (194-294 m asl), with a single specimen collected from the headwaters of Hepola stream in Bibile, which drains to the Mahaweli River. Observed in streams and rivers, usually in groups of 5-10 individuals, close to the banks and occupying the upper level of the water column. Cyprinids commonly encountered with this species were Rasbora dandia, R. cf. microcephalus, Devario malabaricus, Dawkinsia singhala, Puntius bimaculatus, and P. dorsalis
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Sudasinghe, H., R. Pethiyagoda and M. Meegaskumbura, 2020. A molecular phylogeny of the genus Laubuka (Teleostei: Cyprinidae) in Sri Lanka reveals multiple origins and a cryptic species. Systematics and Biodiversity 18(6):592-613. (Ref. 127713)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 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).
Nível Trófico (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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