Actinopteri (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Cyclopsettidae
Etymology: Syacium: Greek, yagke, -es = cheek; diminutive (Cfr. Aaptosyax).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 412 m (Ref. 5951), usually ? - 100 m (Ref. 5217). Tropical; 30°N - 23°S
Western Atlantic: Canada (Ref. 5951) to Florida, USA to São Paulo, Brazil. Records of Syacium micrurum from the eastern Atlantic refer to Syacium guineensis.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 5377); common length : 20.0 cm TL male/unsexed; (Ref. 5217); max. published weight: 500.00 g (Ref. 27584)
Found on soft bottoms of the continental plateau (Ref. 5217, 5377). Feeds on worms and crustaceans. Exhibits sexual dimorphism (Ref. 35237).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Murakami, T. and K. Amaoka, 1992. Review of the genus Syacium (Paralichthyidae) with the description of a new species from Ecuador and Columbia. Bull. Fac. Fish. Hokkaido Univ. 43(2):61-95. (Ref. 10878)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00420 - 0.02273), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.39 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 to moderate vulnerability (30 of 100).
Nutrients (Ref. 124155
): Calcium = 142 [69, 275] mg/100g ; Iron = 0.816 [0.421, 1.330] mg/100g ; Protein = 16.6 [14.4, 19.1] % ; Omega3 = 0.167 [0.076, 0.351] g/100g ; Selenium = 65.7 [34.3, 133.8] μg/100g ; VitaminA = 18.9 [6.1, 54.3] μg/100g ; Zinc = 1.24 [0.83, 1.75] mg/100g (wet weight);