Wedge sole

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Wedge sole
Dicologlossa cuneata.JPG
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Pleuronectiformes
Family: Soleidae
Genus: Dicologlossa
Species: D. cuneata
Binomial name
Dicologlossa cuneata
(É. Moreau, 1881)

The wedge sole (Dicologlossa cuneata), is a flatfish of the Soleidae family. It is a bottom dwelling predatory fish inhabiting both sandy and muddy soils at depths between 10 and 450 m (33 and 1,476 ft) in the East Atlantic and Mediterranean Sea. It achieves a maximum size of 30 cm (12 in).

Morphology[edit]

Wedge soles are a flatfish having a maximum size of 30 cm (12 in). Several characteristics permit their distinction from other Soleidae, notably the juveniles of other species with which it is sometimes confused.

Its body is more elongated than most other species of the Soleidae genus, with scales that detach more easily than the common sole. The upper face is a chocolate brown and carries characteristic blueish marks. On this side, the pectoral fin has a black mark which doesn't extend to the end, contrary to other soles. This fin has a marked triangular shape. The angular snout covers a little of the lower jaw. Another feature is that the lateral line is formed of between 105 and 132 tubular scales, compared to between 116 and 163 for the common sole. Additionally, this line showed a marked curve towards the head in the supratemporal area, while it is more gently curved in solea solea.[1]

Other anatomical differences between the species are the position of the migratory eye,[2] the shape of the urohyal and the number of vertebrae; Dicologlossa cuneata has 43-45 vertebrae, compared to 49-52 for Solea solea.[3]

Fishing and eating[edit]

The legal minimum size for capture of the wedge sole is 15 cm (5.9 in).[where?] They are typically caught more in the colder months of the year. The flesh is white, delicate and low in fat. The bones are not difficult to remove when eating.

In France, the wedge sole is a speciality of the fishing ports of Cotinière, on the île d'Oléron, and Royan, in Charente-Maritime.

It is widely eaten in Andalusia, where it is generally fried. Common fishing zones are in the southern Atlantic due to the fish's preference for a subtropical climate, but it is also found in the Mediterranean. The mouth of the Guadalquivir river in southern Spain is an important habitat for the species; the predominant Spanish landing port being Sanlúcar de Barrameda

External links[edit]

References[edit]

  1. ^ A. Forest, Le céteau Dicologoglossa cunetata (Moreau), sa biologie et sa pêche dans le sud du golfe de Gasgogne. Revue des Travaux de l'Institut des Pêches Maritimes (ISTPM), 1975/03, Volume 39, Issue 1, Pages 5-62. Article en ligne sur le site de l'Ifremer. Consulté le 10 décembre 2009.
  2. ^ Chez le poissons plats, l'« œil migrateur » est celui qui migre pour rejoindre l'autre œil sur une même face de la tête.
  3. ^ A. Forest, op. cit.