Lake Võrtsjärv
The amount of planktonic algae can
reach 30g per cubic metre, with blue-
green algae prevailing in summer.
Water is turbid, yellowish-green or
greenish yellow, with a transparency
of about 1m. Mud particles stirred up
by the wave action contribute to
turbidity. The zooplankton of the lake
consists of smaller animals building
up the summer biomass. The amount
of bottom animals is low but variable
in different years.
pic: plaktonic algae
About 35 fish species are in Lake
Võrtsjärv. Pike-perch, eel, bream and
pike are the most important
commercial fishes. In the fifties and
sixties Võrtsjärv was known as a ruff
lake since inferior fish prevailed in
catches. After the application of
measures proposed by scientists of the
Limnological Station ,big and
valuable fish species became
dominating. The natural eel have been
caught in some years. The total yearly
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