Metadata: Aquatic Invasive Species Observations

Aquatic Invasive Species Observations

This page last updated: 09/01/2021
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

Title: Aquatic Invasive Species Observations

Abstract: A multi-partner effort to record the locations of aquatic invasive species in waterbodies throughout the state. Points indicate presence and/or approximate physical locations of the species. Data is downloaded from EDDMapS Midwest ( ). Data from EDDMapS includes all data previously collected by the Minnesota DNR and uploaded to EDDMapS in 2016. From 2016 forward data from MN DNR staff was collected directly into EDDMapS. EDDMapS also contains data from other organizations and individuals in Minnesota.

Purpose: To provide an inventory of selected invasive aquatic species in waters of the state of Minnesota. A multi-partner effort to collect consistent information. This will provide a planning tool to help identify problem infestations and coordinate an effective response to individual species and locations for prevention and control efforts. This layer is not a complete statewide survey for aquatic invasive species.

Time Period of Content Date: 02/26/2024

Currentness Reference: Time Period of Content date indicates the date which the user can be confident of accuracy and completeness of the dataset. Regularly updated as reports are made to EDDMapS.

Progress: Complete

Maintenance and Update Frequency: Continually

Spatial Extent of Data: Statewide

Bounding Coordinates: -96.574296


Theme Keywords: Aquatic Invasive Species, Plants, Animals, Mussels, Fish, Diseases, Invertebrates, AIS, alewife, bighead carp, curly-leaf pondweed, Eurasian watermilfoil, flowering rush, goldfish, grass carp, Heterosporis, Largemouth Bass Virus (LMBV), purple loosestrife, rainbow smelt, round goby, ruffe, sea lamprey, spiny waterflea, threespine stickleback, tubenose goby, white perch, zebra mussel

Theme Keyword Thesaurus:

Access Constraints: None.

Use Constraints: EDDMapS covers the United States and Canada. Some species are native to Minnesota but not native to other areas. EDDMapS pulls information from a variety of sources, such as herbarium records, so it may contain information on records of species that are native to Minnesota. When DNR distributes the EDDMapS data in ArcMap form, some of those records may be present. Do not use the list of species in this dataset as a definitive list of species that are not native to Minnesota.

Contact Person Information: Wendy Crowell, Aquatic Invasive Species Management Consultant
Minnesota DNR - Ecological and Water Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5085

Browse Graphic: Click to view a data sample.

Associated Data Sets: Terrestrial Invasive Species Observations

Section 2: Data Quality

Attribute Accuracy: EDDMapS pulls in data from a variety of sources, including research grade reports in iNaturalist. iNaturalist allows reporters to obscure the location of their records, and this can result in low accuracy, i.e. very high numbers in the “CoordAcc – Coordinate Accuracy” field.

Logical Consistency: N/A

Completeness: This layer is not a complete statewide survey for aquatic invasive species.

Horizontal Positional Accuracy: There are multiple origins of this data. The majority of the points were collected using hand-held GPS equipment with accuracy of +/- 15 meters. Some points were generated using the center of the waterbody. Some points were generated using systematically selected locations within water boundaries. An effort was made to prevent the points from overlapping. Also see the field CoordAcc or Coordinate Accuracy.

Vertical Positional Accuracy: Not Applicable

Lineage: Observation data is held by and processed through EDDMapS. MNDNR processes regular downloads from the EDDMapS database. Information on EDDMapS data can be found at

Source Scale: Source layer eco_aqinvsppt4: 100000

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

Field Name: Field Alias: Description.

id_number: Unique ID Number: EDDMapS Record ID.

scientificname: Scientific Name: Scientific name of the subject.

commonname: Common Name: Common name of the subject.

division: Division: Species grouping.

category1: Category 1: Species grouping.

category2: Category 2: Species grouping.

status: Status: positive or treated.

reporter: Reporter: Name of the person, agency, group, organization reporting the data.

recowner: Reporter Info: Affiliation of the reporter (state agency, county govt, etc.).

surveyor: Surveyor: Name or initials of surveyor other than Reporter.

obsdate: Observation Date: Date the subject was observed/recorded in the field.

dateent: date entered: Date record is entered into the database.

dateup: date updated: Date record information was updated.

county: County: The name of the county.

latitude: Latitude: Latitude in decimals.

longitude: Longitude: Longitude in decimals.

coordacc: Coordinate Accuracy: Measurement is in Meters. Large numbers are not necessarily errors; some people may attempt to deliberately obscure the data’s location. Also data from iNaturalist sets Obscured records to a very high coordinate accuracy value.

localownership: Local Ownership: State or regional ownership, description.

administratingdivision: Administrating Division: Division that administers the land.

administrator: Administrator: Organization that administers the land.

unittype: Unit Type: Type of state land.

unitname: Unit Name: Name of the state land.

locality: Locality Description: Description about the location of observation.

site: Site Name: Specific name of area by organization.

habitat: Habitat: Area type where the subject was located
waterbodyname: Water Body Name: Name of waterbody where subject was observed.

waterbodytype: Water Body Type: Type of water body for aquatic observations.

lakeidnumber: Lake ID Number: Lake ID number (formerly called DOW number) of the waterbody where the subject was observed.

comments: Comments: Anything that is relevant to the subject, environment, mapping.

abundance: Abundance: Distribution pattern and amount of plants, e.g. Single plant, Scattered plants. Dense monoculture, Dominant cover, or Linearly scattered.

infestedareainacres: Infested Area in Acres: Actual amount of infested area within the gross area.

grossareainacres: Gross Area in Acres: Entire area that a large or discontinuous infestation covers.

percentcover: Percent Invasive Cover: Percent cover of invasive species

density: Density: Number of plants, or abundant, common, rare, etc.

quantity: Quantity: Number of subjects observed.

quantityunit: Quantity Unit: Unit for number of subjects observed.

approxquantity: Approximate Quantity: Estimation of number of subjects observed.

numcollect: Number Collected: Number and/or description of species collected (not related to vouchers).

smallestobserved: Approx Size Observed: Smallest: Size of smallest subject observed.

largestobserved: Approx Size Observed: Largest:Size of largest subject observed.

incidence: Damage Severity: Percentage for measure of damage occurrence/presence on subject.

severity: Disease Impact: Percentage for measure of disease occurrence/presence on subject.

host: Host: Scientific Name of host as Genus Species Subspecies/Variety (to greatest specificity known).

hostdamage: Host Damage Severity: Describes the damage done to the host by biocontrol agents or PIPE species.

managestat: Management Status: May indicate if the area was treated.

visittype: Purpose of Visit: Purpose of visit to area.

datamethod: Data Method: How the animal was detected.

traptype: Trap Type: Type of trap utilized to capture insects, wildlife, etc.

numtraps: Number of Traps

targetname: Target Name: Name used to describe what was surveyed.

targetcount: Target Count: Count of targets surveyed.

targetrange: Target Range: Range or estimation of the count of targets surveyed.

phenology: Life Stage: Description of subject life stage and characteristics.

lifestatus: Life Status: Notes if subject is alive or dead.

sex: Sex: Sex of the subject, if known.

treatarea: Treatment Area: area treated if an attempt at control of invasive species was made.

planttreat: Plant Treatment

treatcomm: Treatment Comment

obsider: Observation Identifier

origname: Original Name

datereviewed: Date Verified: Date record is reviewed by a person or group for record information accuracy.

reviewer: Verifier: Name of Verifier

verifymethod: Verification Method

idcred: Identification Credibility: Review process, the reviewer making the call on record information accuracy.

reviewcomm: Verification Comments

museum: Museum

museumrec: Museum Record

voucher: Voucher

nativity: Nativity: Describes species nativity relative to United States, e.g. Native, Introduced, Native and Introduced, Exotic, Local Distribution, Widely Distributed, Cultivated.

recsrctyp: Record Source Type: Technological source of the record.

method: Method: Method of documenting coordinates.

pid: Persistent ID

uuid: Unique Record ID

collecttime: Collection Time: Time in Minutes to collect sample/observe/survey.

dateacc: Date Accuracy: Accuracy of the observation.
date in days. Not all data is provided with accurate date; sometimes data is just to the month and year or only to the year.

substrate: Substrate: Substrate of water body or material subject was observed on.

Table Detail:

Section 6: Distribution

Publisher: Minnesota Department of Natural Resources (DNR)

Publication Date: 09/08/2016

Contact Person Information: Wendy Crowell, Aquatic Invasive Species Management Consultant
Minnesota DNR - Ecological and Water Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5085

Distributor's Data Set Identifier: env_invasive_aquatic_obs

Distribution Liability: The Minnesota Department of Natural Resources General Geographic Data License Agreement is online:

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: 09/01/2021

Contact Person Information: Wendy Crowell, Aquatic Invasive Species Management Consultant
Minnesota DNR - Ecological and Water Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5085

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2

This page last updated: 09/01/2021
Go back to top

Created with MGMG stylesheet version 2017.04.25.1