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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius: Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335); rong: Named for its pointed appearance that is reminiscent of the Vietnamese dragon ('rồng' in Vietnamese); noun in apposition.
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water demersaal. Tropical
Asia: Vietnam.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 6.0 cm SL mannelijk / geslacht onbekend; (Ref. 132587); 5.3 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 7; Dorsale zachte stralen (totaal) : 8; Anale stekels: 1; Anale zachte stralen: 8; Wervels: 25 - 26. This species is distinguished by the following characters: with mouth closed, the anterior tip of lower jaw protruding significantly beyond upper jaw in larger males (> 4.0 cm SL); pectoral fin rays, 18-20 rays (usually 19); D2 and A usually with one spine and eight soft rays; total vertebrae usually 26; cycloid scales on nape and posterior part of occipital region, scaled area extending anteriorly to posterior margin of preopercle; longitudinal scales 31-34; predorsal scales 11-17; cephalic sensory pore system usually with B´, C, D(S), E, F, H´, K´, L´, M´, N, and O´; cheek with four longitudinal rows of cutaneous sensory papillae and no transverse row. Colouration: when alive, cheek of males with 2 broad, diagonally downward orange stripes, and 1 or 2 large orange spot(s); thinner and reddish-brown or grey similar markings in females (Ref. 132587).
Body shape (shape guide): elongated; Cross section: oval.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Maeda, K., H. Kobayashi, M. Iida and H.D. Tran, 2024. Taxonomy of freshwater gobies of the genus Rhinogobius (Oxudercidae, Gobiiformes) from central Vietnam, with descriptions of two new species. Zootaxa 5493(5):507-541. (Ref. 132587)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.3 ±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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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