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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: duci: Name 'duci' in honor of Vietnamese ichthyologist, Prof. Nguyen Huu Duc, for his contrubution in freshwater fishes studies in Vietnam.
Eponymy: Mari Albert Johan Van Manen (1877–1943) was a Dutch ethnographer, theosophist and orientalist who made a specialty of the study of Tibet and its texts. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Subtropical
Asia: Vietnam.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 5.4 cm SL mâle / non sexé; (Ref. 133159)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 10; Rayons mous anaux: 7. This species is distinguished from its congeners by the following set of characters: pectoral fin rays I, 15; pelvic fin rays I, 8; lateral line scales 77-83; anus farther posterior insertion of pelvic fin than to anal fin origin, caudal peduncle depth approximately as caudal peduncle length (8.2%-8.5%); distance from pelvic fin to pectoral fin (39.1%) larger than distance from pelvic fin to anal fin (29.8%); broad midlateral black stripe stretching from behind head to caudal-peduncle base; black dotted stripe stretching from base of pectoral fin to posterior end of anal fin; lower lip with three large papillae; median wider than two lateral ones; rostral fold divided into three triangular lobules of same size; distinct black dot at base of pelvic and pectoral fins; fleshy black protrusion in pelvic fin base (Ref. 133159).
Body shape (shape guide): elongated; Cross section: oval.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Dang, H.T.T., H.T. Duong, F. Li, H.Q. Nguyen and H.D. Tran, 2024. A new loach species of the genus Vanmanenia (Actinopterygii: Cypriniformes: Gastromyzontidae) from hill streams of Vietnam. Acta Ichthyologica et Piscatoria 54:177-187. (Ref. 133159)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00646 (0.00283 - 0.01475), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
2.7 ±0.3 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |