DNR Hydrography - Lakes of Biological Significance

This layer shows lakes meeting criteria for <b>Lakes of Biological Significance (LBS)</b>. Lakes were identified and classified by DNR subject matter experts on objective criteria for four community types (aquatic plants, fish, amphibians, birds). <br/><br/>Unique plant or animal presence was the primary measure of a lake's biological significance. Lakes were rated and grouped for each of the following communities: aquatic plants, fish, birds, and amphibians. Lakes were assigned one of three biological significance classes (<b>outstanding, high, or moderate</b>), which are defined in <i>Section 5: Attributes (below)</i>. Many Minnesota lakes have not been sampled for plants and/or animals, so this list of lakes will be periodically revised as additional biological data become available.<br/><br/>The goal of this list was to identify lakes that exhibit the highest quality features within <u>any of the four assessed biological communities</u> (as opposed to identification of lakes that exhibit diversity across communities). Therefore, a lake needed to meet criteria for only one of the community types (aquatic plants, fish, birds, amphibians) to be identified as a Lake of Biological Significance. Occurrences of high-quality features within the community types determined the biological significance rank.<br/><br/>For a detailed description of criteria and analysis used, see: <a href="ftp://ftp.gisdata.mn.gov/pub/gdrs/data/pub/us_mn_state_dnr/env_lakes_of_biological_signific/metadata/lakes_of_biological_significance_criteria_20150423.pdf"<b>Lakes of Biological SIgnificance Criteria and Analysis 20150423</b></a> (pdf, 38k)

Additional Info

Field Value
Last Updated August 25, 2015, 10:03
Created May 13, 2015, 08:02
dsAccessConst None
dsCurrentRef Fish IBI scores are updated through 2011.
dsMetadataUrl ftp://ftp.gisdata.mn.gov/pub/gdrs/data/pub/us_mn_state_dnr/env_lakes_of_biological_signific/metadata/metadata.html
dsModifiedDate 2015-05-15 00:02:12
dsOriginator Minnesota Department of Natural Resources (DNR)
dsPeriodOfContent 4/23/2015
dsPurpose To support planning, natural resource management, research and other resource protection-related activities

Dataset extent