Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; oceanodromous (Ref. 51243). Temperate
Northwest Pacific: Taiwan (Ref. 47843), Japan (central Honshu to southern Kyushu) and southern Korea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm TL male/unsexed; (Ref. 9710)
Found among bottom cover (Ref. 9710). Oviparous (Ref. 205). Females attach adhesive eggs to seaweed with the mouth and guard them until embryos hatch (Ref. 40060).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Females attach adhesive eggs to seaweed with the mouth and guard them until embryos hatch (Ref. 40060).
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.01159 - 0.02991), b=2.86 (2.72 - 3.00), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.1 se; based on diet studies.
Generation time: 0.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=1.20; tm=1).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .