Identification of taxa, counts, biomass and carbon biomass calculations for phytoplankton and ciliates from artic lakes near Toolik Lake LTER in summer 1998.

Abstract: 

Identification of taxa, counts, biomass and carbon biomass calculations for phytoplankton and ciliates from artic lakes near Toolik Lake LTER in summer 1998.

Project Keywords: 

Data set ID: 

10206

EML revision ID: 

3

Short name: 

1998ArcLTER_phyto

DOI: 

10.6073/pasta/3fbe8012f4b8a808a47a5e300a55b9d5
People

Keywords: 

Arctic LTER keywords: 

Dates

Date Range: 

Friday, May 1, 1998 to Tuesday, September 1, 1998

Publication Date: 

Tuesday, December 12, 2000

Methods: 

Samples were preserved in Lugol's solution before shipment to Sweden.
Identification to the level of taxa was made via light microscopy from known
volumes in settling chambers.

Reference Citations: Olrik, K., P. Blomqvist, P. Brettum, G. Cronberg, P. Eloranta and E. Herlitz.
1998. Methods for Quantitative Assessment of Phytoplankton in Freshwater, parts
I and II. Naturvardsverket, Stockholm.

Sampling Description.

None

Variable description: C= counted number of cells in all counting fields Ae= effective filter area (mm2) n= number of fields analyzed v= sample volume corrected for preservative addition As= area of counting filed (mm2) Biomass is based on geometric formulas, e.g., sphere volume V= p/6 x d3 cylinder V= p/4 x d2 x l ellipsoid V= p/6 x l x a x b (see reference) carbon biomass is calculated from volume biomass, where C= phytoplankton carbon (ug l-1 C) B= phytoplankton biomass (ug l-1 wet mass) Cyanophytes Thecate dinoflagellates Diatoms C= B x 0.22 C= B x 0.13 C= B x 0.11

N (cells/ml) = C*Ae/(n*v*As)

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

Use of the data requires acceptance of the data use policy --> Arctic LTER Data Use Policy

To cite this data set see the citation example on the LTER Network Data Portal page for this data set.

File 1998ArcLTER_phyto.csv

Identification of... File Details

File 1998ArcLTER_phyto.xlsx

Excel file with... File Details

Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Site Code
  • Label: Site Code
  • Definition: Site Code, LTER code
  • Type: Nominal
  • Missing values: None specified
Site
  • Label: Site
  • Definition: Site of measurement
  • Type: Nominal
  • Missing values: None specified
Depth
  • Label: Depth
  • Definition: Depth (m), 0m= surface water
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
Date
  • Label: Date
  • Definition: Date sampled
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values:
    • . = Missing or Not Measured
Family
  • Label: Family
  • Definition: Family of identified species
  • Type: Nominal
  • Missing values: None specified
Taxa
  • Label: Taxa
  • Definition: Taxa of identified species
  • Type: Nominal
  • Missing values: None specified
Size (um)
  • Label: Size (um)
  • Definition: Size of identified species in um
  • Type: Nominal
  • Missing values: None specified
Abundance (#/liter)
  • Label: Abundance (#/liter)
  • Definition: Number per liter
  • Type: Physical quantity
  • Unit: numberPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
Biomass (ug/liter)
  • Label: Biomass (ug/liter)
  • Definition: ug per liter
  • Type: Physical quantity
  • Unit: microgramPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
C biomass (mg C/liter)
  • Label: C biomass (mg C/liter)
  • Definition: ug carbon per liter
  • Type: Physical quantity
  • Unit: microgramPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured