Hippoglossoides platessoides

The folds Canadian is also called folds or plate . In English, it bears the name of american plaice , canadian plaice , flounder , sand dab , plaice , dab or blackback .

Surface of distribution

One finds the Canadian plaice on the two sides of the Northern Atlantique: south of the Labrador and Large Bench until the broad one of the Rhode Island, with broad of the Greenland, the Iceland and the Spitzberg until the Handle.

Description

It does not exceed usually 55 cm, however, a specimen found with broad of the Nova Scotia close to the Île of Sand measured 74 cm and weighed 6,4 kg. It is a fish Dextre (droitier), with the going right side of the red to brown the grisâtre and the bluish white left side. The small specimens present spots sunk on the edge of the body. It is distinguished from other dextral flat fish of the east of the Canada by its large mouth, its side Ligne almost right (slightly arched close to the pectoral Nageoire) and its round tail. Its flesh is slightly yellowish compared to that of the gray Plie, whiter, and its net is rounder than that of the latter. The specimens of approximately 30 cm are cooked quite whole.

Biology

The Canadian plaice likes the fine sand funds or from go soft; it can tolerate a relatively low salinity and survive -1 °C, but does not venture in water exceeding 23 °C. The winter, it from goes away out of deeper water, in the hotter layers, until April and, in summer, it enjoys fresher water of the coasts.

The females of 40 cm and the males of 25 cm are mature, the females lay from 30 to 60 thousand eggs by spawning time. The spawning time is carried out on various territories, according to the season, the blossoming of eggs requiring a temperature from approximately 4 °C from 11 to 14 days lasting. After the spawning time, several large females of the Gulf the St. Lawrence and coasts Newfoundlanders become gelatinous, having lost many proteins. The Alevin S Pelagic S, eat Diatomée S and small the Copepoda. The small plaices on the bottom nourissent small Crustacé S, like the Myside S, the Amphipode S and the Crevette S, then, while growing, of sea urchin S, Ophtiure S, Berets, Mollusque S Pélécypode S and Gastéropode S, of Ver S, Ascidie S and, on the occasion, of small Poisson S, like the Lançon, and the Capelan.

The Canadian plaice is the prey large Poisson S, like the Morue and the Flétan, and also, in low age, of less large fish, like the Hémitriptère, the Lycode and the Raie. It is also the host of parasitic worms (Nématodes).

It is a fish of commercial importance for the Canadian fisheries ; 132 tons were fished with the Quebec in 2005, which is less than were to it the gray Plie or the red Plie in the same year, according to the figures of MAPAQ.

External bonds

Agro-alimentary Canada

Simple: American plaice

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