Rasbora truncata : fisheries

Rasbora truncata Lumbantobing, 2010

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> Cypriniformes (Carps) > Danionidae (Danios) > Rasborinae
Etymology: Rasbora: Rasbora, an Indian word for a fish, also used in Malay peninsulatruncata: The specific name, truncata, from the Latin referring to the truncated lateral line system in this species, which has an incomplete lateral line and also has a truncated cephalic line.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

; eau douce benthopélagique. Tropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

Asia: Alas River in northwestern Sumatra, Indonesia.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 3.8 cm SL mâle / non sexé; (Ref. 85846)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 9; Rayons mous anaux: 7; Vertèbres: 31 - 32. Distinguished from all members of Rasbora trifasciata-group by a weakly developed post-opercular streak, which extends ventrally to the horizontal through the ventral margin of pupil (vs. distinct streak, which extends ventrally to reach the axillary lobe of pectoral fin). Can be further diagnosed from other members in northwestern Sumatra by the following combination of characters: male cephalic tubercles conical, distinctly pointed, with a shallow, wide depression basally; presence of cranial superficial neuromasts (each basal plate is lower than the skin surface and surrounded by peripheral ridge and groove, respectively); the first infraorbital (lachrymal) with a relatively straight dorsal margin, but without a posterodorsal process; the lachrymal region peripherally pigmented with an unpigmented central area; absence of dorsomedial branch of supraorbital canal toward posterior margin of frontal; an axial streak extending forward and terminating at the area between vertical through the dorsal-fin origin and the pelvic-fin insertion; the cephalic tubercles present only in males; a transverse scale count anterior to the dorsal-fin origin and pelvic-fin insertion of K4/1/2K; 12 circumpeduncular scales; an immaculate opercular flap; a basal reticulation pattern comprised of a network of well-developed parenthesis-shaped bars on the midlateral surface of the body; a maximum vertical coverage of the basal reticulation two and a half longitudinal scale rows; the lateral line absent from one to six posterior scales (only 20-26 scales perforated); lateral line series unpigmented on the posterior portion; and the pelvic-fin rays i,7 (Ref. 94947).

Biologie     Glossaire (ex. epibenthic)

This species mostly inhabits moderate-flowing turbid rivers. In streams with fast-flowing water, it tends to form school at the stream margins or the pool regions along the river banks. It occurs sympatrically with Rasbora api and R. cf. sumatrana (Ref. 94947).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur | Collaborateurs

Lumbantobing, D.N., 2010. Four new species of the Rasbora trifasciata-group (Teleostei: Cyprinidae) from northwestern Sumatra, Indonesia. Copeia 2010(4):644-670. (Ref. 85846)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Préoccupation mineure (LC) ; Date assessed: 27 December 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: d'intérêt potentiel
FAO - Publication: search | FishSource |

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Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00708 (0.00295 - 0.01699), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Niveau trophique
(Réf. 69278)
3.1   ±0.4 se; based on size and trophs of closest relatives
Résilience
(Réf. 120179)
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche
(Ref. 59153)
Low vulnerability (10 of 100). 🛈