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

Past Methods (No longer in use)

  • Fish collection method
    Started: 1994-04-01
    Ended: 1994-10-03

    Fish collected from Branch, Bourn , Stratton and Grout Pond were collected for analysis for contaminants in edible tissue, using gill nets.

  • Fish species and location I
    Started: 1994-04-01
    Ended: 1994-10-03

    Brook trout were collected from Bourn, Branch and Stratton Ponds.

  • Fish species and location II
    Started: 1994-04-01
    Ended: 1994-10-03

    Brown bullhead, chain pickerel and smallmouth bass were analyzed from Grout Pond.

  • Tissue sample prep
    Started: 1994-04-01
    Ended: 1995-10-03

    Fish were collected by gill nets, and the lengths were recorded in the field. Whole fish were wrapped in aluminum foil and placed in plastic bags and transported on ice to an office where they were frozen. Fish were kept frozen until processed. Fish filets were prepared in the laboratory on a glass cutting board using a stainless steel knife. A 2-4 inch fillet from each fish was homogenized in a tissue grinder. Chain pickerel and smallmouth bass fillets were analyzed with the skin removed.

  • Analysis targets
    Started: 1994-04-01
    Ended: 1994-10-03

    Measurements included mercury, lead, polyaromatic hydrocarbons (PAH), PCB's and pesticides.

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
DateDate

Date of sample collection

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

Unique identifier for lab sample

Measurement type: Nominal
LocationLocation

Pond from which sample was collected

Measurement type: Nominal
ResultResult

Amount of contaminant found in fish tissue

Measurement type: Ratio
Units: mg/kg ww
Precision: 0.01
SymbolSymbol

Symbol for greater than, lesser than or null

Measurement type: Nominal
Test codeTest code

List of contaminant and organism (fish)

Measurement type: Nominal
UnitsUnits

Units of measure used in this study: (mg/kg)

Measurement type: Nominal

Sampling Equipment

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

Past Sampling Equipment (No longer in use)

  • Fish Collection
    Started: 1993-08-01
    Ended: 1995-09-30

    Six sections, (=sites), were sampled on 4 streams in the GMNF August through September 1993-1995. These sections represented the physical habitat of the stream reaches.

Site Characteristics

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

  • Site Description

    Bourn Pond, Branch Pond, Stratton Pond and Grout Pond.

    Minimum Altitude: 700 feet

    Maximum Altitude: 900 feet