Lake Plant Eutrophication IBI

This page last updated: 06/30/2016
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 Lake Plant Eutrophication IBI
Abstract Eutrophication may have detrimental effects on a lake, including reductions in the quantity and diversity of aquatic plants, fish and wildlife. The ability to assess the biological condition of a lake plant community is a valuable tool in the conservation of Minnesota's lakes. With this objective in mind, the Minnesota Department of Natural Resources (DNR) developed a lake plant index of biological integrity (IBI) to measure the response of a lake plant community to eutrophication. This Lake Plant Eutrophication IBI is used by the Minnesota Pollution Control Agency (MPCA) to determine if a lake is meeting the federal Clean Water Act standards with regard to aquatic life use. The MPCA will use this IBI to identify lakes that are impaired (i.e., not supporting aquatic life use based on the stress received from anthropogenic eutrophication).

For a detailed description of criteria used, see: Lake Plant Eutrophication IBI summary 20160623.pdf
Purpose To support planning, natural resource management, research and other resource protection-related activities.
Time Period of Content Date 06/16/2016
Currentness Reference Periodic revisions as additional data become available
Progress Complete
Maintenance and Update Frequency As needed
Spatial Extent of Data State of Minnesota
Bounding Coordinates -95.824029
-89.957509
48.514924
44.029130
Place Keywords Minnesota
Theme Keywords IBI, index of biological integrity, FQI, Floristic quality index, lakes
Theme Keyword Thesaurus
Access Constraints
Use Constraints
Contact Person Information Paul Radomski,
Minnesota Department of Natural 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

Section 2 Data Quality
Attribute Accuracy
Logical Consistency
Completeness Complete
Horizontal Positional Accuracy
Lineage The lake polygons are derived from the Open Water feature class of the DNR Hydrography SDE 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

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 DNR Hydrography SDE Dataset. See MNDNR Hydrography. The remaining attributes are specific to this layer.
Detailed Citation Lake Plant Eutrophication IBI: The Lake Plant Eutrophication IBI includes two metrics to assess the viability of aquatic life use. The first metric is taxa richness or the estimated number of taxa in a lake. The second metric is floristic quality index (FQI). Thresholds for each metric were calculated; these thresholds represent the minimum accepted state of biological condition. For each lake the percent difference from the threshold was determined. Values of 0 or greater are above threshold, while lakes that scored below the threshold contained degraded communities.
Table Detail:
Lake Plant IBI
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
-
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
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 RegionMN DNR
1Northwest Region (Bemidji)
2Northeast Region (Grand Rapids)
3Central Region (St. Paul)
4Southern Region (New Ulm)
FSH_OFFICE
-
DNR Fisheries Administrative Areas (Fisheries Office)DNR Fisheries
OUTSIDE_MNenumeratedIdentifies border waters
YPolygon (portion of border lake) that is outside of MN
NLake is not a border lake (outside of MN)
PUBLISH_DATE
-
Date the lake polygon source layer was re-published following updates.DNR Fisheries
Recent Survey Date
-
Survey date for the most recent survey (compiled from various sources)DNR Ecological and Water Resources
Recent Taxa Richness
-
Taxa richness (number of taxa) for the most recent survey compiledDNR Ecological and Water Resources
Recent FQI
-
Floristic quality index (FQI) for the most recent survey compiledDNR Ecological and Water Resources
Recent PD Richness
-
Percent difference from richness threshold for the most recent survey compiledDNR Ecological and Water Resources
Recent PD FQI
-
Percent difference from FQI threshold for the most recent survey compiledDNR Ecological and Water Resources
Number Surveys
-
Number of compiled surveysDNR Ecological and Water Resources
Min Taxa Richness
-
Minimum taxa richnessDNR Ecological and Water Resources
Max Taxa Richness
-
Maximum taxa richnessDNR Ecological and Water Resources
Min FQI
-
Minimum FQIDNR Ecological and Water Resources
Max FQI
-
Maximum FQIDNR Ecological and Water Resources
Min PD Taxa Richness
-
Minimum percent difference from richness thresholdDNR Ecological and Water Resources
Max PD Taxa Richness
-
Maximum percent difference from richness thresholdDNR Ecological and Water Resources
Min PD FQI
-
Minimum percent difference from FQI thresholdDNR Ecological and Water Resources
Max PD FQI
-
Maximum percent difference from FQI thresholdDNR Ecological and Water Resources
Ecoregion Class
-
Ecoregion class (as used in Radomski and Perleberg 2012)DNR Ecological and Water Resources
FQI Threshold Status
-
IBI status in relation to FQI threshold (based on most recent compiled survey)DNR Ecological and Water Resources


Section 6 Distribution
Publisher Minnesota Department of Natural Resources (DNR)
Publication Date 07/05/2016
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_lake_plant_ibi
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 06/30/2016
Contact Person Information Kristin Carlson, GIS Data Contact
Minnesota DNR - Division of Ecological and Water Resources
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
Metadata Standard Online Linkage http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm


This page last updated: 06/30/2016
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