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Gobiiformes (Gobies) >
Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Navigobius: Name from Latin ' navi' meaning to float or swim, an allusion to the swimming habits of the species; vittatus: Name from Latin 'vittatus' for blue stripes on the dorsal fins.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 25 - 31 m (Ref. 105381). Tropical
Distribution
Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Western Pacific: Brunei Darussalam.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 2.3 cm SL mâle / non sexé; (Ref. 105381)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 7; Rayons mous dorsaux (Total) : 11 - 13; Épines anales: 1; Rayons mous anaux: 10 - 12; Vertèbres: 26. This species is distinguished by the following characters: D VI + I,11-13 (rarely 13), the spines of first dorsal fin with protruding filaments; A I,10-12 (rarely 12); pectoral-fin rays 18-19; scales in longitudinal series 52-58; total gill rakers on first arch 15-16; segmented caudal-fin rays 17; branched caudal-fin rays 11; forked caudal fin with filament on upper and lower lobe; no preopercular pores; interorbital pores paired; colour in life semi-translucent grey with yellowish hue; with short yellow stripe on snout and from upper eye to pectoral-fin base; blue stripe from mid-interorbital to first dorsal-fin origin; dorsal fins are translucent with yellowish hue, both dorsal fins have prominent basal and submarginal blue stripes; caudal fin yellowish to yellow-brown with blue upper and lower margins (Ref. 105381).
Body shape (shape guide): elongated; Cross section: compressed.
Form loose aggregations of 10-50 individuals, observed hovering 50-100 cm above the substrate on a very gradual but strongly current-swept sand and rubble slope in 28-31 m depth. Collection reef with visibility invariably quite low (5-8 m maximum) and where there was frequently a minor thermocline at the 20-25 m depth range, with the fish exposed to moderately cooler temperatures down to 27°C. When approached too closely, individuals would dive into burrows in the sand, sometimes individually but also multiple individuals entering the same burrow (Ref. 105381).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Allen, G.R., M.V. Erdmann and N.K.D. Cahyani, 2015. Navigobius vittatus, a new species of dartfish (Gobiidae: Ptereleotrinae) from Brunie Darussalam. J. Ocean Sci. Found. 17:12-21. (Ref. 105381)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |