Actinopteri (ray-finned fishes) > Eupercaria/misc
(Various families in series Eupercaria) > Gerreidae
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius.
More on authors: Temminck & Schlegel.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Temperate
Northwest Pacific: southern Korea to southern Japan, except the Ryukyus.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.2 cm SL male/unsexed; (Ref. 116290)
Morphology | Morphometrics
soft rays: 7 - 8. U-shaped premaxilla groove entirely without scales, even in large specimens. Posterior margin of maxilla usually not beyond a vertical through anterior margin of inner dermal eye opening (rarely just short of vertical). Scales between 5th dorsal fin spine base 3.5. Body often with 6-8 irregular, dusky, oblique and vertical bands dorsolaterally and ventrolaterally (apparent in juveniles and often observed in large specimens). Pelvic fin vivid or dull yellow with a strong black band and clear white distal margin posteriorly when fresh. Supraneural bones 3 (Ref. 35850).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Iwatsuki, Y., S. Kimura and T. Yoshino, 1999. Redescriptions of Gerres baconensis (Evermann & Seale, 1907), G. equulus Temminck & Schlegel, 1844 and G. oyena (Forsskål, 1775), included in the "G. oyena complex", with notes on other related species (Perciformes: Gerreidae). Ichthyol. Res. 46(4):377-395. (Ref. 35850)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00973 - 0.02580), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for species & Genus-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.00 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .
Nutrients (Ref. 124155
): Calcium = 57.8 [27.8, 114.0] mg/100g ; Iron = 0.405 [0.206, 0.695] mg/100g ; Protein = 18.5 [16.4, 20.5] % ; Omega3 = 0.573 [0.298, 1.152] g/100g ; Selenium = 15.4 [7.7, 33.9] μg/100g ; VitaminA = 7.36 [1.85, 27.75] μg/100g ; Zinc = 0.634 [0.380, 0.988] mg/100g (wet weight);