Английский язык. Дьякова Н.П. - 14 стр.

    nutritiousfood product              питательный продукт
    poultry grit lime                   корм для домашней
    mussel                              мидия, двустворчатый моллюск
    lobster                             омар
    shrimp                              креветка
    pearl essence                       жемчужный пат


                                          Вариант 5

Задание 1. Прочитайте и переведите текст.

                       SOME IMPORTANT COMMERSIAL FISHES

     Fishes are cold-blooded, backboned animals adapted to live in water, breathing
by means of gills and having limbs represented by fins or rudiments of fins. The skin is
usually covered with scales, but these may be replaced by bony plates or rough tuber-
cles and rarely the skin is entirely naked. The scales vary greatly in size and structure
among the species.
     What ever the nature of fish's diet it is essential that it should contain the following
ingredients: water, minerals, fats or carbohydrates, proteins and vitamins; water makes
up about 75 per cent of the body weight of fish. Nearly all fishes are catholic in their
choice of food, and many alter their habits as they age and with the seasons.
     For convenience fishes are classified to their main methods of feeding in the adult
age: 1) plankton feeders, 2) weed eaters, 3) mud feeders, 4) feeders on insects, crusta-
ceous, worms and molluscs, 5) fish eaters, 6) parasites.
     All fishes have their definite spawning seasons. The majority of fishes spawn
in spring or at the beginning of summer, but there are also fishes which spawn in other
seasons.
     Approximately 12,000 distinct species have been ascertained by scintists, yet
about 15 per cent of these are regarded as fishes of commerce. And among the com-
mon commercial fishes the following species may be mentioned as the most important
commercial fishes, on account of their abundance, high productiveness and high food
qualities.
     The herring family. In productiveness none exceed those of the herring family
numbering more than 150 species distributed over the greater part of the earth in both
salt and fresh water.
     The cod family (cod, haddok, hake, and others) include about 140 specis.
     The family Salmonidae includes salmon, charr, trout (lake trout, brook trout, rain-
bow trout) and others. Some of them are anadromous.
     The mackerels and mackerel fishes (including tunas) numbering 60 species are
widely distributed. They are highly praized for food in fresh, salted and canned state.


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