Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: Istigobius: Greek, istios = sail + Latin, gobius = gudgeon (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 2 - 10 m (Ref. 90102). Tropical, preferred ?; 20°N - 35°S
Eastern Indian Ocean: Western Australia and Northern Territory, Australia. Western Pacific: Philippines, Papua New Guinea, Queensland in Australia, New Caledonia, American Samoa, the Solomon Islands. Also reported from Indonesia (Ref. 8631) and Iriomotejima, Japan (Ref. 559).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm SL male/unsexed; (Ref. 48637); 5.5 cm TL (female)
soft rays: 9 - 11;
Vertebrae: 26. Upper pectoral fin rays entire. 3 spots forming a `V' on caudal base; black spot basally between dorsal spines V-VI; pectoral base, cheek and operculum with many dusky melanophores; pelvic fins black. Longitudinal black bar off distal part of upper jaw. Trunk scales ctenoid, predorsal cycloid. In male, anal fin dusky and when appressed, reaching or almost reaching caudal fin, appressed dorsal fin overlapping caudal fin. In female, appressed anal and dorsal fins extending within 1-2 scales from caudal (Ref. 420); longitudinal scale series 30-32; depth of body 4.8-5.8 in SL (Ref. 90102).
Found in shallow coastal sand flats, usually silty bottom in a few meters depth (Ref. 48637).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Genital papilla of male pigmented, terminating to side of anal spine. Female genital papilla slightly pigmented, truncate, and terminating well before anal fin origin.
Murdy, E.O. and D.F. Hoese, 1985. Revision of the gobiid fish genus Istigobius. Indo-Pac. Fish. (4):41 p. (Ref. 420)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00419 - 0.01894), b=3.07 (2.90 - 3.24), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .