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Brakes
Barnacles can cause much inconvenience
and can incurr high costs for mans Marine activities because they gladly
attach themselves to the submerged parts of ships, platforms, bouys and
other Marine constructions. This growth makes these constructions heavier,
rust more quickly and increases water resistance. To prevent or hinder
growth, poisonous paints containing heavy metals, so-called "anti-fouling"
are used.
Ships and plants that pump sea water also have problems,
because piping can became fouled. Here, Marine growth is countered by
flushing with hot water, freshwater or chemicals.
Other specie
There are 9 specie of barnacle found in
Sweden. In shallow water, the Northern
rock barnacle, brackish
water barnacle and the common
rock barnacle are found, but even the humble Verruca stroemia.
It is usually smaller than 1,1 cm in diameter, and is easily recognized
by its warped form and that it only has two top plates.
Bo Johannesson
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