Fumee Lake Natural
Area
Limnological Survey Aquatic Life
Plants
Fauna Fish
Plants
Thirteen species of aquatic plants (macrophytes) collected using a
garden rake and identified in 1994. Aquatic plants were notably sparse in
Fumee Lake. There is a lack of organic substrate to allow plants to take root
over much of the bottom of Fumee Lake. Submerged vegetation was found near the
deepest part of the lake and near the edges. Floating and emergent vegetation
was found in the littoral zone. There are sufficientf plants in Fumee Lake for
the fish population.

Benthic Organisms of Fumee Lake in Early August, 1994
| Identification | Abundance |
| Mayflies Caddis flies Leeches Snails Unionidae Crayfish Whirligig Beetle Backswimmer Dragon Nymph |
Most
Common Common Common Fairly Common Fairly Common Fairly Common Rare Rare Rare |
Fish
Five fish of three size categories were caught with hook and line and
preserved by freezing. The sizes taken were under 8 inches, 8 to 12 inches and
larger than 12 inches. These fish were very vulnerable to fishing as the lakes
have been closed to recreational fishing for 50 years. Several fish over 18
inches were caught but were not kept. Scales were taken, and lengths measured
for all fish caught. The number of rings on the scales are counted to determine
the ages of the fish. The age of the fish along with their lengths are used to
compute growth rates. Smallmouth bass in Fumee Lake and Little Fumee Lake have
growth rates that are better than the Michigan state average for smallmouth
bass.
The fish were analyzed for toxic contaminants. The contaminants levels
in these fish were found to be similar to those in Lake Superior, meaning the
contaminants come mostly from atmospheric deposition rather than direct inputs
as is the case in Lake Michigan. The concern is for the fish and the animals
that eat the fish. The top level predators often suffer from the impacts of
these contaminants. The concentrations of DDT, DDE and PCB in the smallmouth
bass tested appear to be high enough to be of concern regarding their
consumption by and impact on eagles. Additionally, the mercury concentration in
many smallmouth bass taken from Fumee Lake exceeded 0.5 ppm which is the
"trigger level" used by the Michigan Department of Public Health in issuing
"restrict consumption advisories".