Bacterial Enumeration

Summary

Abstract: 

An important part of the McMurdo Long Term Ecological Research (LTER) project is monitoring spatial and temporal patterns, and processes that control bacterial production in perennial ice covered lakes. This data set quantifies bacteria concentrations at specific depths in Dry Valley lakes.

Date Range: 

Tuesday, November 9, 2004 to Tuesday, March 25, 2008
BACT_ENUM data spreadsheet units and Column Descriptions

Variables: 

Dataset code
  • Label:
  • Definition: Code representing the data table, the Bacterial Enumeration table.
  • Type: Nominal
  • Missing values: None specified
LIMNO_RUN
  • Label: Limno Run
  • Definition: Code for lake's sampling location and date
  • Type: Nominal
  • Missing values: None specified
LOCATION NAME
  • Label: Location Name
  • Definition: Name of lake where measurement was made
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label:
  • Definition: Location in the lake where measurement was made
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Date_time
  • Definition: Date sample was collected
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values: None specified
COUNT_DATE
  • Label:
  • Definition: Date on which sample was analyzed
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
DEPTH (m)
  • Label: Depth (m)
  • Definition: Distance below piezometric water level from which sample was drawn
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 100
  • Minimum: 1
  • Precision: 1
  • Missing values: None specified
TOTAL_BACT (cells/ml)
  • Label:
  • Definition: Total Bacteria count in cells/mL
  • Type: Physical quantity
  • Unit: cells/ml
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
COCCOID (cells/ml)
  • Label:
  • Definition: Coccoid Bacteria count in cells/mL
  • Type: Physical quantity
  • Unit: cells/ml
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ROD (cells/ml)
  • Label:
  • Definition: Rod Bacteria count in cells/mL
  • Type: Physical quantity
  • Unit: cells/mL
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
FILAMENTOUS >5 um(cells/ml)
  • Label:
  • Definition: Filament Bacteria count in cells/mL
  • Type: Physical quantity
  • Unit: cells/mL
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
BACT COMMENTS
  • Label:
  • Definition: Helpful hints about the sample
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: Name of file in which data was submitted
  • Type: Nominal
  • Missing values: None specified
DEPTH MASL
  • Label: DEPTH MASL
  • Definition: Depth referred to the Sea level. Distance below Mean Average Sea water level reference from which sample was drawn
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
DYE
  • Label:
  • Definition: Name of the dye used during the counts<
  • Type: Nominal
  • Missing values: None specified
NON-FILAMENTOUS <5 um cell/ml
  • Label:
  • Definition: Filament Bacteria count in cells/mL
  • Type: Physical quantity
  • Unit: cells/ml
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified

Short name: 

LIMNO_BACT_ENUM

Data set ID: 

3002
Published in the EDI Data Repository

Data Citation: 

Priscu, J. 2015. McMurdo Dry Valleys LTER: Bacterial Enumeration. Environmental Data Initiative. DOI: 10.6073/pasta/884656569c951dceeccb916547b4b61b. Dataset accessed 18 August 2019.
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Crew
Lab Crew
Data Manager