DNR Hydrography - Lakes of Biological Significance

This page last updated: 05/01/2015
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)
Title DNR Hydrography - Lakes of Biological Significance
Abstract This layer shows lakes meeting criteria for Lakes of Biological Significance (LBS). 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 Criteria and Analysis 20150423 (pdf, 38k)
Purpose To support planning, natural resource management, research and other resource protection-related activities
Time Period of Content Date 04/23/2015
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 for every five 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 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
Browse Graphic Click to view a data sample
Associated Data Sets MNDNR Hydrography - All Water Features

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 Section 1: Associated Datasets.

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

Section 5 Attributes
Overview The first set of attributes (DNR_HYDRO_ID through PUBLISH_DATE) are derived from and consistent with the Open Water feature class of the MNDNR Hydrography Dataset. See Section 1: Associated Datasets. The remaining attributes are specific to this layer.

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 For a detailed description of criteria and analysis used, see: Lakes of Biological SIgnificance Criteria and Analysis 20150423 (pdf, 38k)
Table Detail:
lakes_of_biological_significance - feature class table (DNR EWR)
Field NameValid ValuesDefinitionDefinition Source
DNR_HYDRO_ID1 to 35000Unique GIS record number of waterbody features in DNR Hydrography SDE - Open Water FeaturesDNR Fisheries
FW_IDenumeratedA unique Fisheries Waterbody ID for joining/linking polygons to DNR Fisheries Lake Survey DB (Oracle). FW_IDs are assigned based on how the waterbody is managed by DNR Fisheries (i.e., an FW_ID may correspond to an entire basin '00' or to a specific sub-basin '01','02',etc.DNR Fisheries
1-18000A valid Fisheries Waterbody IDDNR Fisheries Lake Survey DB
88888A "dummy" Fisheries Waterbody ID representing an alternate representation of a basin (implemented in SDE Dataset only)
99999A "dummy" Fisheries Waterbody ID representing a non-MN portion of a border water
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_NAME
-
Public Water (Lake) Name per DNR Ecological and Water Resources Division's LAKESDB databaseDNR EWR LAKESDB
SUB-FLAGenumeratedIdentifies whether basin is a sub-basin of a larger complex of basinsDNR EWR LAKESDB
YYes, is a sub-basin; DOWLKNUM usually ends in '01', '02, '03, etc.DNR EWR LAKESDB
NNo, is not a sub-basin; DOWLKNUM usually ends in '01', '02, '03, etc.DNR EWR LAKESDB
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
CENTER_UTM_X
-
UTM Easting (X) of waterbody centerESRI auto-calculated
CENTER_UTM_Y
-
UTM Northing (Y) of waterbody centerESRI 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
OUTSIDE_MNenumeratedIdentifies border waters
YPolygon (portion of border lake) that is outside of MN
NLake is not a border lake (outside of MN)
DELINEATED_BY
-
Person/unit/source of polygon delineation
DELINEATION_DATE
-
Date of polygon delineation or shape update.
DELINEATION_SRCenumeratedPhoto imagery source used for digitizing polygon featureDNR Fisheries
1991 DOQ1991 black & white digital ortho photoquad
2004 FSA2004 color Farm Service Adminstration photo
2005 FSA2005 color Farm Service Adminstration photo
2006 FSA2006 color Farm Service Adminstration photo
2008 FSA2008 color Farm Service Adminstration photo
2009 FSA2009 color Farm Service Adminstration photo
2010 FSA2010 color Farm Service Adminstration photo
2011 FSA2011 color Farm Service Adminstration photo
LAMDNR Lands and Minerals polygon
ORIG DLGOriginal USGS DLG 100K polygon
PWIPublic Water (PWI) polygon representing the Ordinary High Water Level (OHWL)
DELINEATION_NOTES
-
Any notes related to the delineation.
APPROVED_BY
-
APPROVAL_DATE
-
APPROVAL_NOTES
-
PUBLISH_DATE
-
Date the DNR Hydrography polygon layer was published or updated and re-published. PUBLISH_DATE efers to polygon delineations only. See CONTENT_DATE for date that attributes were last updated.DNR Fisheries
FLAG_TYPEenumeratedSee specific code.DNR EWR LBS
LBSIndicates that the lake is a Lake of Biological SignificanceDNR EWR LBS
LBS_CLASSenumeratedDescription of LBS classDNR EWR LBS
OutstandingMeets "Outstanding" criteria for at least one communityDNR EWR LBS
HighMeets "High" criteria for at least one communityDNR EWR LBS
ModerateMeets "Moderate" criteria for at least one communityDNR EWR LBS
PLANT_RANKenumeratedA relative ranking for the aquatic plant communityDNR EWR LBS
1Meets "Outstanding" criteria for the aquatic plant communityDNR EWR LBS
2Meets "High" criteria for the aquatic plant communityDNR EWR LBS
3Meets "Moderate" criteria for the aquatic plant communityDNR EWR LBS
FISH_RANKenumeratedA relative ranking for the fish communityDNR EWR LBS
1Meets "Outstanding" criteria for the fish communityDNR EWR LBS
2Meets "High" criteria for the fish communityDNR EWR LBS
3Meets "Moderate" criteria for the aquatic plant communityDNR EWR LBS
AMPHIBIAN_RANKenumeratedA relative ranking for the amphibian communityDNR EWR LBS
1Meets "Outstanding" criteria for the amphibian communityDNR EWR LBS
2Meets "High" criteria for the amphibian communityDNR EWR LBS
3Meets "Moderate" criteria for the amphibian communityDNR EWR LBS
BIRD_RANKenumeratedA relative ranking for the bird communityDNR EWR LBS
1Meets "Outstanding" criteria for the bird communityDNR EWR LBS
2Meets "High" criteria for the bird communityDNR EWR LBS
3Meets "Moderate" criteria for the aquatic plant communityDNR EWR LBS
CONTENT_DATE
-
Date the layer-specific attributes were last updatedDNR EWR LBS


Section 6 Distribution
Publisher Minnesota DNR - Ecological and Water Resources
Publication Date 04/30/2015
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.gdb\lakes_of_biological_significance
Distribution Liability The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: 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 or link to download information. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 05/01/2015
Contact Person Information Lyn Bergquist, GIS Metadata Contact
Minnesota DNR - Fisheries Unit
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5189
Email: lyn.bergquist@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm


This page last updated: 05/01/2015
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