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Gobiiformes (Gobies) >
Butidae (Gudgeon gobies)
Etymology: Ophiocara: Greek, ophis = serpent + Greek, kara = face (Ref. 45335); gigas: Name 'gigas' refers to the adult maximum size in this species, being greater than those of congeners.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien; zoet water; brak water demersaal; amfidroom (Ref. 133165). Subtropical
West Pacific: Japan (Ryukyu Archipelago), the Philippines, Palau, Micronesia, Indonesia, the Solomon Islands, Fiji, Vanuatu, and New Caledonia; including Papua New Guinea (New Ireland).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 13.7 cm SL mannelijk / geslacht onbekend; (Ref. 133165); 13.5 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 7; Dorsale zachte stralen (totaal) : 7; Anale stekels: 1; Anale zachte stralen: 7 - 8; Wervels: 25 - 26. This species is distinguished from its congeners by the following set of characters: longitudinal row scales 32-36; predorsal scales 21-26; snout length 10.3-12.0% of SL; upper jaw length 13.6-16.2% of SL; pectoral fin length in young specimens (< 97.7 mm SL) 25.0-27.6% of SL; caudal fin length 28.3-36.7% of SL; opercular scales cycloid; infraorbital neuromast rows from the eye are usually seven. Colouration: trunk with two beige oblique bands; dorsal and caudal fins with dark brown spots; juveniles with white or light brown markings on middle and ventral parts of caudal fin base (Ref. 133165).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Often collected from lower freshwater streams and tidal estuaries in mangrove forests, especially near the upper limits of estuary reaches with freshwater inflow and low salinity (0-14‰, 3 sites). The adults and juveniles were usually found on emergent plants in daytime, motionless near riverbanks at night, with the latter also occurring in tide pools with muddy or gravel bottoms. Associated with other amphidromous eleotrids, Eleotris fusca and Giuris tolsoni, inhabiting the same site. Also often observed with Eleotris acanthopomus and Redigobius bikolanus. Consumed in Japan (Ref. 133165).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Kobayashi, H. and M. Sato, 2023. The genus Ophiocara (Teleostei: Butidae) in Japan, with descriptions of two new species. Ichthyol. Res. 71(1):119-153. (Ref. 133165)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
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Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00933 (0.00410 - 0.02122), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.8 ±0.6 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 (11 of 100). 🛈 |