Actinopteri (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Soleidae
Etymology: Microchirus: Greek, mikros = small + Greek, cheir = hand (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 20 - 250 m (Ref. 4710). Temperate; 53°N - 12°N, 18°W - 30°E
Eastern Atlantic: Portugal southward to Senegal; a single record from southwest of the British Isles. Mediterranean: Spain, Algeria and Turkey.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 4710)
Morphology | Morphometrics
soft rays: 58 - 68;
Vertebrae: 40 - 43. Body oval; upper eye less than its own diameter from dorsal profile of head; anterior nostril on blind side not enlarged; anterior nostril on eyed side with a backward-pointing tube hardly reaching to front border of lower eye; dorsal fin beginning near vertical through front border of upper eye; pectoral fin on eyed side with 6-8 fin rays, on blind side shorter; caudal fin separate from last dorsal and anal fin rays; lateral line supra-temporal branch forming an angular S-shape, the ascending part running upward and backward (Ref. 4710).
Found on mud and sand of the continental shelf, from the shore down to 250 m (Ref. 4710). Feeds on small benthic invertebrates, mainly amphipods and polychaetes (Ref. 4710). Minimum depth range from Ref. 121791.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Desoutter, M., 1994. Révision des genres Microchirus, Dicologlossa et Vanstraelenia (Pleuronectiformes, Soleidae). Cybium 18(3):215-249. (Ref. 35940)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 9.8 - 18.1, mean 13.8 °C (based on 253 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00575 - 0.01381), b=3.06 (2.94 - 3.18), in cm total length, based on LWR estimates for species & Genus-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.41 se; based on food items.
Generation time: 5.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .
Nutrients (Ref. 124155
): Calcium = 43 [21, 95] mg/100g ; Iron = 0.313 [0.173, 0.575] mg/100g ; Protein = 18.9 [17.3, 20.5] % ; Omega3 = 0.329 [0.169, 0.646] g/100g ; Selenium = 17.9 [8.3, 38.5] μg/100g ; VitaminA = 6.55 [1.81, 22.01] μg/100g ; Zinc = 0.505 [0.318, 0.775] mg/100g (wet weight);