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The rates of benthic photosynthesis of microbial mats at low irradiances in Lake Hoare and Lake Fryxell, Taylor Valley
Entry ID: K081_2006_2007_NZ_2

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Summary
Abstract: Photosynthesis rates of microbial mats were measured at a range of irradiances to determine the performance of mats at low irradiances at Lake Hoare and Fryxell. Underwater irradiance measurements were taken under the ice and through the water column. Photosynthesis was measured in situ using PAM fluorometry. Profiles along the depth gradient in Lake Hoare and Lake Fryxell were sampled with benthic microbial mats analysed for pigments (HPLC), species composition, O2 and H2S profiles and ash free dry mass. Water samples were analysed for DRP, NH4-N, NO3-N, TDN and TDP.
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Description: NIWA Antarctic research
Geographic Coverage
Spatial coordinates   
  N: -77.62   S: -77.63   E: 163.18   W: 162.85

Temporal Coverage
Start Date: 2006-11-10
Stop Date: 2006-12-11
ISO Topic Category
Data Set Progress
COMPLETE
Originating Center
Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand Supplemental Info
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
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
Role: TECHNICAL CONTACT
Phone: +64 3 343 7802
Fax: +64 3 348 5548
Email: b.sorrell at niwa.co.nz
Contact Address:
NIWA
PO BOX 11-115
City: Christchurch
Country: New Zealand
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Publications/References
Howards-Williams, C. And Hawes, I. 2007. Ecological processes in Antarctic inland waters: interactions between physical processes and the nitrogen cycle. Antarctic Science 19: 205-217.
Creation and Review Dates
DIF Creation Date: 2009-01-09
Last DIF Revision Date: 2009-01-13

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