Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Monitoring sites
    Started: 1991-10-30

    Browns River and Stevensville Brook are monitored at 1400 foot elevation on each.

  • Sample collection

    Duplicate samples of aquatic macroinvertebrates were collected using a standardized "kick-net" procedure. A sample consists of all the organisms and detritus dislodged from the substrate during two minutes of active substrate disturbance. Temperature, pH, alkalinity, and specific conductance of the water column are measured at the time the sample is collected. Organisms from the sample are separated from detritus and sorted into taxonomic groups.

    Software: Paradox software

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
IDID

Number of site

Measurement type: Nominal
SiteSite

Name of site location

Measurement type: Nominal
SiteIDSite ID

Codes for the sample collection sites

Measurement type: Nominal
LabIDLab ID

Identification code for lab samples

Measurement type: Nominal
OrderOrder

Taxonomic category (lower than class higher than family)

Measurement type: Nominal
GeneraGenus

Taxonomic category used with species to form the scientific name for a particular species

Measurement type: Nominal
SpeciesSpecies Name

Taxonomic category used with genus to form the scientific name of a particular species

Measurement type: Nominal
DensityDensity

Number of organisms collected per square meter using a standardized method.

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
PercentCompPercent Composition

The percent of the collected organisms that are in a major taxonomic group

Measurement type: Ratio
Unit: unavailable
Precision: 0.0001
CommonNameCommon Name

Non-scientific name of a species

Measurement type: Nominal
DateDate

Date sample was collected

Measurement type: DateTime
Date/Time Format: M/DD/YYYY hh:mm:ss

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

  • Net

    500 micron mesh D-frame net

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    The two sampling sites are located in the upper reaches of the Brown's River watershed- one on Stevensville Brook and one on the Brown's River upstream of its confluence with Stevensville Brook. Both sites are at an elevation of 1400 feet.

    Minimum Altitude: 1400

    Maximum Altitude: 1400