Abstract:
The distribution and biodiversity of algae was assessed to enable possible future predictions of the effects of global warming. Sites (5 in the first season, 4 in the second) were established around the Cape Hallett peninsula and samples of algae were collected from the ice at regular intervals. As far as possible these sites represented the range of conditions of sea ice in the region. CTD probes measured chlorophyll concentration, temperature and salinity. Algae samples were collected from ice samples, water samples (collected from 5, 25 and 50m depths) and from the sea floor and were used to determine chlorophyll concentration using fluorometry, for carbon and nitrogen concentrations, DNA content, MAA composition, biodiversity and cell numbers (algae and bacteria). PAM and PEA were used to assess photosynthetic capacity of algae extracted from the sea ice. This method was used to determine the response of the algal community to experimentally induced changes in salinity, temperature and light levels. Molecular biological techniques were used to characterise the prokaryotic community in the sea ice and in the water beneath the ice.
The data is contained in the publications. Existing samples are held at Victoria University of Wellington with a spreadsheet of sample numbers. All raw data is held by the investigator. Please contact Dr Ken Ryan for more information.
Name:
SHULAMIT
GORDON Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745 City:
Christchurch
Country:
New Zealand
Personnel
KEN
RYAN Role:
INVESTIGATOR
Phone:
+64 4 463 6083
Fax:
+64 4 463 5331
Email:
ken.ryan at vuw.ac.nz
Contact Address:
Victoria University of Wellington
School of Biological Sciences
PO BOX 600 City:
Wellington
Postal Code:
6140
Country:
New Zealand
SHULAMIT
GORDON Role:
DIF AUTHOR
Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745 City:
Christchurch
Country:
New Zealand
Creation and Review Dates
DIF Creation Date:
2005-09-22
Last DIF Revision Date:
2009-02-27
