Metadata: Lakes of Biological Significance

Lakes of Biological Significance

This page last updated: 07/09/2020
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Department of Natural Resources (DNR) - Ecological and Water Resources (EWR)

Title: Lakes of Biological Significance

Abstract: This layer shows lakes meeting criteria for Lakes of Biological Significance (LBS) in Minnesota. Lakes were identified and classified by DNR subject matter experts on objective criteria for four community types (aquatic plants, fish, amphibians, birds).

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 (outstanding, high, or moderate), which are defined in Section 5: Attributes (below). 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.

The goal of this list was to identify lakes that exhibit the highest quality features within any of the four assessed biological communities (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.

For a detailed description of criteria and analysis used, see: Lakes of Biological Significance_20200707 (pdf, 50k)

Purpose: To support planning, natural resource management, research and other resource protection-related activities.

Time Period of Content Date: 2020

Currentness Reference: Polygon re-delineations and edits are frequent and occur as needed. See the attributes DELINEATION_DATE and DELINEATION_SRC for date and source of each polygon. See CONTENT_DATE for last date of attribute updates.

Progress: Complete

Maintenance and Update Frequency: As needed (planned every 5 years)

Spatial Extent of Data: Statewide

Bounding Coordinates: -97.23
-89.53
49.37
43.5

Place Keywords: Minnesota, border waters

Theme Keywords: Hydrography, Water, Lakes, Inland Waters, metrics, fish, aquatic plant, amphibian, bird, biological significance, priority, ranking, outstanding, high, moderate, LBS

Theme Keyword Thesaurus:

Access Constraints: None

Use Constraints: None

Contact Person Information: Paul Radomski, Project Consultant
Minnesota DNR - Ecological and Water Resources
1601 Minnesota Drive
Brainerd, MN  56401
Phone: 218-203-4361
Email: paul.radomski@state.mn.us

Browse Graphic: Click to view a data sample.


Associated Data Sets: MNDNR Hydrography - All Water Features: https://gisdata.mn.gov/dataset/water-dnr-hydrography

MPCA Impaired Waters Viewer: https://gisdata.mn.gov/dataset/impaired-waters-viewer

(MPCA) Impaired Lakes 2010: https://gisdata.mn.gov/dataset/env-impaired-lakes-2010

Section 2: Data Quality

Attribute Accuracy:

Logical Consistency:

Completeness: Complete

Horizontal Positional Accuracy: Polygons have been improved by on-screen digitizing over DOQ and FSA imagery.

Vertical Positional Accuracy: N/A

Lineage: The lake polygons are derived from the Open Water feature class of the MNDNR Hydrography Dataset. See Associated Data Sets above.

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum: not applicable

Vertical Units: Not Applicable

Depth Datum: not applicable

Depth Units: Not Applicable

Section 5: Attributes

Overview: Lakes of Biological Significance (LBS) Criteria: 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, amphibians, and birds. There are three biological significance classes for this list: Outstanding, High, and Moderate.

Detailed Citation:

Table Detail:
env_lakes_of_biological_significance - feature class table (DNR EWR)
Field NameValid ValuesDefinitionDefinition Source
dowlknum
-
Waterbody ID per DNR Ecological and Water Resources (EWR) Division's LAKESDB database; the DOWLKNUM may end in"00" (entire basin) or "01","02", etc. (sub-basin)DNR EWR LAKESDB
pw_basin_n
-
Basin name per DNR Ecological and Water Resources Division's LAKESDB databaseDNR EWR LAKESDB
pw_parent
-
Basin parent name (corresponding to DOWLKNUMs ending in '00') per DNR Ecological and Water Resources Division's LAKESDB databaseDNR EWR LAKESDB
pw_sub_nam
-
Basin sub-basin name (corresponding to DOWLKNUMs not ending in '00') per DNR Ecological and Water Resources Division's LAKESDB databaseDNR EWR LAKESDB
sub_flagenumeratedIdentifies whether basin is a sub-basin or a border waterDNR EWR
YYes, is a sub-basin; DOWLKNUM usually ends in '01', '02, '03, etc.DNR EWR
NNo, is not a sub-basin.DNR EWR
BBorder waterDNR EWR
wb_classenumeratedHydrologic feature type; based on original USCLASS attribute from USGS 100K DLG dataset; some polygons have been reclassified to better indicate their current hydrologic stateUSGS 100K DLG data
Artificial Basin
Fish Hatchery or Pond
Industrial Waste Pond
Innundation Area
Intermittent Water
Island or land
Lake
Mine or gravel pit
Riverine polygon
Sewage Pond/Filtration Bed
Tailings Pond
Wetland
lake_class
-
Lake Class per DNR Fisheries Investigational Report #417 - Schupp 1992 http://files.dnr.state.mn.us/publications/fisheries/investigational_reports/417.pdfDNR Fisheries
acres
-
Surface area of waterbody in acresESRI auto-calculated
shore_mi
-
Perimeter of shoreline in miles (includes island shoreline)ESRI auto-calculated
cty_name
-
County Name
dnr_regionenumeratedDNR Administrative Regionbdry_dnr_admin_regions.gdb\dnr_admin_regions
1Northwest Region (Bemidji)
2Northeast Region (Grand Rapids)
3Central Region (St. Paul)
4Southern Region (New Ulm)
fsh_office
-
DNR Fisheries Administrative Areas (Fisheries Office)bdry_dnr_fisheries_admin.gdb\dnr_fisheries_admin
LBS_ClassenumeratedDescription of LBS ClassDNR EWR
OutstandingMeets "Outstanding" criteria for at least one community
HighMeets "High' criteria for at least one community
ModerateMeets "Moderate" criteria for at least one community
Fish_RankenumeratedA relative ranking for the fish communityDNR EWR
1Meets "Outstanding" criteria for the fish community
2Meets "High" criteria for the fish community
3Meets "Moderate" criteria for the fish community
Plant_RankenumeratedA relative ranking for the aquatic plant communityDNR EWR
1Meets "Outstanding" criteria for the aquatic plant community
2Meets "High" criteria for the aquatic plant community
3Meets "Moderate" criteria for the aquatic plant community
Amphibian_RankenumeratedA relative ranking for the amphibian communityDNR EWR
1Meets "Outstanding" criteria for the amphibian community
2Meets "High" criteria for the amphibian community
3Meets "Moderate" criteria for the amphibian community
Bird_RankenumeratedA relative ranking for the bird communityDNR EWR
1Meets "Outstanding" criteria for the bird community
2Meets "High" criteria for the bird community
3Meets "Moderate" criteria for the bird community

Section 6: Distribution

Publisher: Minnesota Department of Natural Resources (DNR)

Publication Date: 04/23/2015

Contact Person Information: Zeb Thomas, GIS Data Systems Coordinator
Minnesota Department of Natural Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5637
Email: zeb.thomas@state.mn.us

Distributor's Data Set Identifier: env_lakes_of_biological_signific

Distribution Liability: The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: http://www.dnr.state.mn.us/sitetools/data_software_license.html

Ordering Instructions: Please visit the download page for this dataset on the Minnesota Geospatial Commons website using the web link below (Online Linkage).

Online Linkage: I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7: Metadata Reference

Metadata Date: 07/09/2020

Contact Person Information: Kristin Carlson, GIS Data Contact
Minnesota DNR - Ecological and Water Resources Division
1601 Minnesota Drive
Brainerd, MN  56401
Phone: 218-203-4362
Email: kristin.carlson@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 07/09/2020
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