Cc.
Fern Lake Trace Mineral Metabolism Laboratory
Supervisors:
Paul R.
Olson,
for
the
Laboratory of
Radiation Biology
John R. Donaldson, for the State of
Washington Department of Game
The cooperative study at Fern Lake
State of Washington Department of
(Washington), with the
Game providing the physical
environment and research participation in fisheries management,
the University of Washington the supervision of the program and
graduate students for
research work,
Energy Commission financial support,
standing area in our
city.
S. Atomic
continues to be an out~
over-all program.
During the past year the major
an evaluation of the
and the U.
effort was directed toward
watershed and its basic productive capa-
Graduate students in the College of Forestry continue
their work on the
of nutrients
water budget of the watershed,
through the soils,
and the
the movement
uptake of trace miner-
als by the flora.
The total production of fish in Fern Lake has been determined by measuring the number and
from the lake and by
weight of
treating the lake
fish that migrated
with
rotenone,
then
collecting all of the remaining fish that had not migrated.
During
the coming year the studies
of
the
role
of trace
minerals in the Fern Lake watershed will be intensified by using