Rasbora tobana : fisheries

Rasbora tobana Ahl, 1934

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> Cypriniformes (Carps) > Danionidae (Danios) > Rasborinae
Etymology: Rasbora: Rasbora, an Indian word for a fish, also used in Malay peninsula.
More on author: Ahl.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water benthopelagisch. Tropical

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Asia: Lake Toba, Sumatra, Indonesia.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 3.5 cm SL mannelijk / geslacht onbekend; (Ref. 85846)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale zachte stralen (totaal) : 9; Anale zachte stralen: 7; Wervels: 31 - 32. Distinguished from all members of the Rasbora trifasciata-group by the following characters: a black midlateral stripe extending along the flank from the post-opercular region to the caudal-fin base and tapering anteriorly and terminating posteriorly at the black basicaudal spot as wide as the black stripe; male cephalic tubercles relatively slender and tall with the tubercle base relatively higher than the skin surface and appearing protruded with the epithelial cells smooth, and with the tubercles aggregated in a clumped plate; and a relatively large supraorbital with posterior margin almost reaching anterior lamina of fifth infraorbital and exceeding opening of dilatator fossa (vs. small supraorbital with posterior margin distantly separated from anterior lamina of fifth infraorbital and barely reaching opening of dilatator fossa). Can be further diagnosed from other members of this group in northwestern Sumatra by the following combination of characters: cranial superficial neuromasts (with basal plate of the neuromast confluent with the skin surface and surrounded by a peripheral groove); a conspicuous depression on the ventral margin of the maxilla notched by a deep lachrymal groove; the uniformly pigmented lachrymal region; the dorsomedial branch of the supraorbital canal extending toward the posterior margin of the frontal; the axial streak anteriorly terminating in the area between the vertical through the dorsal-fin origin and the pelvic-fin insertion; the presence of cephalic tubercles in both sexes; a transverse scale count anterior to the dorsal-fin origin and pelvic-fin insertion of K4/1/3K; 10 scales around ccaudal peduncle; a basal reticulation pattern comprised of networks of well-developed parenthesis-shaped bars on the midlateral surface of the body; the maximum vertical coverage of basal reticulation of three longitudinal scale rows; and the pelvic-fin rays i,7 (Ref. 85846).
Body shape (shape guide): fusiform / normal.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Kottelat, M., 1991. Notes on the taxonomy of some Sundaic and Indochinese species of Rasbora, with description of four new species (Pisces: Cyprinidae). Ichthyol. Explor. Freshwat. 2(2):177-191. (Ref. 26753)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

  Niet bedreigd (LC) ; Date assessed: 09 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van potentieel belang
FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00776 (0.00313 - 0.01923), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
3.1   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen
(Ref. 120179)
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (10 of 100). 🛈
Prijsklasse
(Ref. 80766)
Unknown.