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S U M M A R Y
Chemical Observations in Lake Mývatn June 26—27, 1969
by
Unnsleinn Stefánsson,
Marine Research Institute, Reykjavík.
Mývatn is considered one of the most productive lakes in Iceland. Biological-
ly it is of enormous interest. The main sources of inflow are Grænilækur, a
river entering the southern part ol' the lake, and warm and cold springs drain-
ing into the eastern part. The outflow takes place at the westernmost part
through Geirastaðakvísl into the river Laxá.
In late June 1969 chemical observations were carricd out at 14 different