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Giant Japanese oyster
There are between 50-100 specie of oyster,
but only 10-20 are fished or farmed. On this page you can read about three
of them.
The most economically important of these is probably the
Giant Japanese oyster, Crassostrea gigas. It has a longer form
and can be up to 30 cm long. Besides its form, another difference is that
it has a purple scar after the adductor, while the oyster has a white.
It can be as old as the common oyster. The Giant Japanese oyster originates
from the western Pacific Ocean, but has been farmed in many other areas,
including Europe, for the last 100 years. Even in Bohuslän on the
Swedish west coast people have tried farming this species.
Other specie
The most common oyster
species on the American east coast is known as the Atlantic
oyster, Crassostrea virginica. It is oval in shape
and can be up to 25 cm long.
Another species that has its origins in Europe
is the Portuguese oyster Crassostrea angulata, lives
in southern Europe and has roughly the same form as the
Giant Japanese oyster. It can be 15 cm long. Today, such
populations are small because farming has gone over to the
European and the Giant Japanese oyster.
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