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Teleostei (teleosts) > Gobiiformes (Gobies) > 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 Ecology

Freshwater; benthopelagic. Subtropical

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Asia: Japan (probably endemic to the Ryukyu Is.).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 86740)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 11; Anal spines: 1; Anal 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435)

Near Threatened (NT) (B2b(iii,v)); Date assessed: 11 December 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Luciogobius ryukyuensis Chen, Suzuki & Senou, 2008