Stream Algae Primary Productivity

Summary

Abstract: 

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the abundance and species distribution of algal mats in glacial meltwater streams of the region. This data set includes results from light and dark incubations of algae to calculate net and gross primary productivity of algal communities from selected streams in the Taylor Valley.

Date Range: 

January 15, 1995 to January 15, 1997
Data Citation
Mcknight, D.M. 2015. Stream Algae Primary Productivity. Environmental Data Initiative. DOI: 10.6073/pasta/0102376f4d0061bf2e70b343981b45a0. Dataset accessed 15 January 2025.
Dataset(s)

Variables (click to expand): 

Dataset code
  • Label:
  • Definition: Code representing stream algae primary productivity dataset
  • Type: Nominal
  • Missing values: None specified
Strmtrnsid
  • Label:
  • Definition: Code representing stream transect
  • Type: Nominal
  • Missing values: None specified
LOCATION
  • Label: Stream name
  • Definition: Area of stream / name of transect where samples are drawn
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Date/Time
  • Definition: Date of sample
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values: None specified
Algae Type
  • Label:
  • Definition: Type of algae invertebrate is associated with (red, black, green or orange)
  • Type: Nominal
  • Missing values: None specified
Incubation type
  • Label:
  • Definition: Light vs. dark incubation
  • Type: Nominal
  • Missing values: None specified
Replicate#
  • Label:
  • Definition: Replication number of sample
  • Type: Nominal
  • Missing values: None specified
Change in CO2 over time
  • Label:
  • Definition: Change in level of CO2 in a given hour
  • Type: Physical quantity
  • Unit: mg/cm2/hr
  • Maximum: 40
  • Minimum: -10
  • Precision: 0.1
  • Missing values:
    • Required entry = None given
Change in CO2 per AFDM
  • Label:
  • Definition: Change in level of CO2 per gram of ash-free dry mass in a given hour
  • Type: Physical quantity
  • Unit: mgC/gAFDM/hr
  • Maximum: 2.5
  • Minimum: -0.5
  • Precision: 0.01
  • Missing values:
    • Required entry = None given
Change in CO2 per Chl-A
  • Label:
  • Definition: Change in level of CO2 per mg of chlorophyll a in a given hour
  • Type: Physical quantity
  • Unit: mgC/mgchla/hr
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • Null = None given
STRMPRPR Comments
  • Label: Comments
  • Definition: Helpful hints regarding primary production measurements
  • Type: Nominal
  • Missing values: None specified
File name
  • Label:
  • Definition: Original file name in which this information was submitted
  • Type: Nominal
  • Missing values: None specified

File: 

strmprpr.csv (56.37 KB)

Short name: 

strmprpr.dat

Dataset ID: 

17
People

Principal Investigator(s): 

Diane M. McKnight

Contact: 

McMurdo Dry Valleys LTER
Related
Categories

Research Section: 

LTER Core Areas: 

MCM Keywords: 

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