3.4 Ecological Integrity

Most of the subwatershed is fully developed at urban and suburban densities, with opportunities for the conservation of ecological integrity being primarily within the creek corridor or some larger wetland complexes.

  1. Fish surveys have been completed by the DNR on the major lakes in the subwatershed, and the fisheries are actively managed through stocking.
  2. A fish survey conducted by the DNR on Minnehaha Creek found mostly lake species with few adults, indicating a lack of suitable habitat and few refuges for overwintering and low flow periods.
  3. Macroinvertebrate communities in Minnehaha Creek are limited by frequent wetland and impounded reaches, water quality, and lack of habitat.
  4. Eurasian watermilfoil is present in many of the lakes, and the Minneapolis Park Board performs weed cutting on the Chain of Lakes to better support swimming and boating.