LTE-TIDE-NassariusDenBio.csv

Nassarius obsoletus (Ilyanassa obsoleta) density measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.

Variables
Year
  • Label: Year
  • Definition: Year samples
  • Type: Date/time
  • Date format: YYYY
  • Missing values:
    • NA = not available
Month
  • Label: Month
  • Definition: Month sampled
  • Type: Nominal
  • Missing values: None specified
Years_Enriched
  • Label: Years enriched
  • Definition: Number of years of nutrient enrichment
  • Type: Nominal
  • Missing values: None specified
Nutrient
  • Label: Nutrient
  • Definition: Nutrient level of the creek
  • Type: Code list
  • Codes:
    • Enriched = Nutrient enriched
    • Reference = Reference
  • Missing values:
    • NA = not available
Creek
  • Label: Creek
  • Definition: Creek sampled
  • Type: Code list
  • Codes:
    • Sweeney = Nutrient Enriched
    • Nelson = Nutrient Enriched
    • West = Reference
    • Clubhead = Reference
  • Missing values:
    • NA = not available
Branch
  • Label: Branch
  • Definition: Branch Sampled
  • Type: Code list
  • Codes:
    • L = Left
    • R = Right
  • Missing values:
    • NA = not available
Habitat
  • Label: Habitat
  • Definition: Habitat sampled
  • Type: Code list
  • Codes:
    • MF = Mudflat
  • Missing values:
    • NA = not available
Quadrat
  • Label: Quadrat
  • Definition: Quadrat sampled
  • Type: Nominal
  • Missing values: None specified
Meter
  • Label: Meter
  • Definition: Meter mark
  • Type: Nominal
  • Missing values: None specified
Density
  • Label: Density
  • Definition: Density of snails
  • Type: Physical quantity
  • Unit: numberPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NA = not available
Biomass
  • Label: Biomass
  • Definition: Biomass of snails
  • Type: Physical quantity
  • Unit: gramsPerSquareMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NA = not available
Data Source Details

Header lines: 

1

Orientation: 

Column

Field delimiter: 

,

Record delimiter: 

\r\n

Number of records: 

580