Inglise keele essee
mainly of common carp (917 t) and large rainbow trout (734t). Estonia is a northern country
where the vegetation period is short (3-4 months) and thus the water temperature is a limiting
factor of fish farming. Therefore the heated effluent waters of the electric power plants were
successfully used to prolong the growth period. Collapse of the socialist system caused
decline in fish farming production, mainly because of cease of fish rearing in heated waters
of electric power stations. During postsocialist period all the remaining fish farms have been
privatised. The trout farmers are now using only formulated dry feeds, while the carp
farmers applied lower stocking densities in order to make use of the natural food production
of the ponds. The main trend has been rise of interest to the production of juveniles of
commercially important native species (salmon, sea trout, brown trout, whitefish (Coregonus),
pike, pike-perch, tench) for stocking into the natural waters. The fish farmers hoped that
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