3.4 Ecological Integrity
- Most of the subwatershed is
characterized by large open areas of forest, grasslands, and wetlands
punctuated by low density development.
Intensive uses are concentrated along the US Highway 12 corridor
and on the eastern subwatershed boundary in the City of Plymouth. Two Scientific and Natural Areas
preserving Big Woods remnants are present in the subwatershed, as are
large areas designated as Regionally Significant Ecological Areas. Wetlands with high ecological value are
present and those wetlands and associated upland areas should be conserved
to preserve their values, create larger areas of ecological value, and
connect existing resources.
- The Long Lake
fishery was last surveyed in 2001 and revealed a good sport fishery
periodically stocked by the DNR with walleye. Mooney and Wolsfeld Lakes
are panfisheries. Tanager Lake
contains both sport and panfish.
- Eurasian water milfoil is present in Long Lake
and Tanager Lake.
- No comprehensive aquatic plant survey data
is available for these lakes.
- Macroinvertebrate communities in Long
Lake Creek are limited by water quality and to a lesser extent by the type
of habitat available.
- Corridor connections between Key Conservation Areas (see
Figure 19) need to be preserved, enhanced and restored. Functioning corridors provide benefits
to water quality, wildlife habitat (including threatened and endangered
species) as well as the general health of the ecosystem. Figure 19 identifies a corridor
throughout the subwatershed which should be promoted for conservation through
District efforts as well as local planning. The corridor functions to span several subwatersheds
and provide connectivity of the peripheral areas of the Watershed District
to major resources such as Lake