Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Luciogobius: Latin, lucius = pike + Latin, gobius = gudgeon (Ref. 45335); ryukyuensis: Named for its type locality, Ryukyu Archipelago, Japan.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical
Asia: Japan (probably endemic to the Ryukyu Is.).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 86740)
Morphology | Morphometrics
soft rays: 11;
Vertebrae: 37. This species is distinguished from all its congeners by the following set of characters: D1 absent; D2 I/11; A I/11; pectoral fin rays modally 16 and with one upper, very short free soft ray; vertebral count 16 + 21 = 37; head and body with many rounded light creamy white spots above creamy yellow background (Ref. 86740).
Found among gravels at the rapids which are in the most lower reaches in the freshwater area on the river (Ref. 86740).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, I.-S., T. Suzuki and H. Senou, 2008. A new species of gobiid fish, Luciogobius from Ryukyus, Japan (Teleostei: Gobiidae). J. Mar. Sci. Tech. 16(4):248-252. (Ref. 86740)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00406 - 0.01955), b=3.06 (2.88 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 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 (11 of 100) .