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Microchirus variegatus, Thickback sole : fisheries
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Microchirus variegatus
Picture by
García Rodríguez, M.
Teleostei (teleosts) >
Pleuronectiformes
(Flatfishes) >
Soleidae
(Soles)
Etymology:
Microchirus:
Greek, mikros = small + Greek, cheir = hand (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 400 m (Ref.
35388
). Subtropical; 60°N - 15°N, 18°W - 36°E
Northeast Atlantic: British Isles south to Senegal (baie du Lévrier) and the Mediterranean.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 14 - ? cm
Max length : 35.0 cm SL male/unsexed; (Ref.
35388
); common length : 14.0 cm TL male/unsexed; (Ref.
3397
); max. reported age: 14 years (Ref.
32766
)
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 0. Upper eye less than its own diameter from dorsal profile of head. Anterior nostril on blind side not enlarged, its distance from front margin of head about twice in its distance from cleft of mouth. Anterior nostril on eyed side with backward-pointing tube reaching to front border of lower eye. Pectoral fin on eyed-side small, on blind side reduced.
Inhabits mud or sand bottoms. Feeds on a wide range of small bottom-living organisms, mainly crustaceans (amphipods, shrimps), also polychaete worms and bivalve mollusks (Ref.
4710
). Utilized as a food fish.
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott
, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref.
4537
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
15 July 2014
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 7 - 16, mean 10.3 °C (based on 434 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00655 - 0.01008), b=3.05 (3.01 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245
).
Trophic level (Ref.
69278
): 3.3 ±0.45 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.37; tm=3; tmax=14).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (44 of 100).
Climate Vulnerability (Ref.
125649
): Low vulnerability (9 of 100).
Price category (Ref.
80766
):
Very high
.
Nutrients (Ref.
124155
): Calcium = 109 [39, 241] mg/100g; Iron = 1.02 [0.44, 2.16] mg/100g; Protein = 18.3 [16.5, 20.1] %; Omega3 = 0.199 [0.104, 0.365] g/100g; Selenium = 37.1 [18.3, 80.6] μg/100g; VitaminA = 8.2 [2.1, 30.8] μg/100g; Zinc = 0.664 [0.428, 0.992] mg/100g (wet weight); based on
nutrient studies.
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- 20 July 2016
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