Teleostei (teleosts) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Chaenogobius: Greek, chaeno = to yawn + Latin, gobius = gudgeon (Ref. 45335).
More on author: Gill.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 54°N - 34°N, 114°E - 141°E
Asia: Japan and Korea. Reported occurrence elsewhere may be referring to other species of Gymnogobius.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 50519)
(total): 6 - 7;
soft rays: 8 - 10;
Vertebrae: 32 - 33. This species is characterized by the following: scales in longitudinal series 61-67, transverse series 20-22, predorsal scales 17-24; a pair of sensory papillae in row f; modal ray count of second dorsal fin I,10; modal AP 2; modal vertebrae count 14+18; dorsal fins light brown with distinct dark-brown with wavy longitudinal bands; caudal and pectoral fins light brown with distinct dark-brown transverse bands; body and head light brown with approximately 6 broad, dark transverse bands; caudal fin base with several small, black spots and distinct blotch (Ref. 81467).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kim, Y., G. Cho, S. Park and G. Joo, 1997. Fish fauna of headwater streams in southern region of Korea. Acta Hydrobiol. Sin. 21(9):183-194. (Ref. 27791)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00335 - 0.01567), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 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).