Summer Phytoplankton Densities 1992-2001

Phytoplankton were collected over four austral summers (1991-92 through 1994-95) to examine seasonal and annual fluctuation in species composition and biovolume in Lakes Fryxell, Hoare, West Lake Bonney, and East Lake Bonney. All of these lakes are perennially ice-covered lakes located in the Dry Va...

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Bibliographic Details
Format: Dataset
Language:unknown
Published: McMurdo Dry Valleys LTERByrd Polar Research Center 108 Scott Hall1090 Carmack RdColumbusColumbusOH43210-1002USA(614) 292-4697 2011
Subjects:
lake
limnology
phytoplankton
density
phylum
Austral
Victoria Land
Canada
Taylor Valley
Bonney
Fryxell
Hoare
Lake Bonney
Lake Fryxell
Lake Hoare
Canada Glacier
Fryxell Lake
East Lake
Antarc*
Antarctica
glacier*
Online Access:http://hdl.handle.net/10255/dryad.14633
http://metacat.lternet.edu/knb/metacat/knb-lter-mcm.0048.2/xml
Description
Summary:Phytoplankton were collected over four austral summers (1991-92 through 1994-95) to examine seasonal and annual fluctuation in species composition and biovolume in Lakes Fryxell, Hoare, West Lake Bonney, and East Lake Bonney. All of these lakes are perennially ice-covered lakes located in the Dry Valleys of South Victoria Land, Antarctica. The phytoplankton consisted primarily of cryptophyte and chlorophyte flagellates, and filamentous cyanobacteria. Some common taxa were vertically stratified (Oscillatoria limnetica, Phormidium angustissimum, Pyramimonas sp., Oscillatoria sp.), while others showed no distinct vertical stratification (Chlamydomonas subcaudata, Cryptomonas sp.). The stratification of the phytoplankton reflects the gradients of nutrients and light, and the stability of the water column.

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