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

  • Sample collection
    Started: 2000-01-01

    Vermont DEC collects macroinvertebrate community samples during an annual index period that runs from September 1st through mid-October. Samples are collected from riffle habitats, and sorted and identified in the laboratory. DEC biologists use population data, as well as a number of community variables (called metrics) to assess stream health.

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
30DayMedian30DayMedian

Ratio Units:
Precision: 0.01
Annual Peak DischargeAnnual Peak Discharge

Interval Units:
Annual_Peak_DischargeAnnual_Peak_Discharge


CommunityAssessmentCommunityAssessment

Nominal
CPOMCPOM

Nominal
DateDate

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

Ordinal
DrainageAreaDrainageArea

Ratio Units:
Precision: 0.001
ElevationElevation

Interval Units:
LabIDLabID

Nominal
LatitudeLatitude

Ratio Units:
LocationLocation

Nominal
LongitudeLongitude

Ratio Units:
MeanBaetidae%MeanBaetidae%

Ratio Units:
MeanDensityMeanDensity

Ratio Units:
MeanEPT/EPT+ChiroMeanEPT/EPT+Chiro

Ratio Units:
MeanEPTRichnessMeanEPTRichness

Ratio Units:
MeanNew_BIMeanNew_BI

Ratio Units:
MeanOligochaeta%MeanOligochaeta%

Ratio Units:
MeanRichnessMeanRichness

Ratio Units:
MeanShredderDetritus%MeanShredderDetritus%

Ratio Units:
ModelTypeID1ModelTypeID1

Nominal
PMA-O1PMA-O1

Ratio Units:
PPCS-1PPCS-1

Ratio Units:
SiteIDSiteID

Nominal
StationStation

Nominal

Sampling Equipment

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

No sampling equipment recorded for this dataset

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 DEC (Vermont Department of Environmental Conservation) conducts long term monitoring within twelve "sentinel" streams in Vermont. These reference streams vary widely in size (4.6 - 510km^2). One of the longest running sentinel monitoring stations is at Ranch Brook near Stowe, VT. Ranch Brook has a drainage area of 10 km^2 and an elevation of 378m.

    Minimum Altitude: 33 meters

    Maximum Altitude: 585 meters