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The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Granite Harbour
Entry ID: K043_2008_2009_NZ_3


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Summary
Abstract: In the 2008/2009 season, samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM rapid light curves to determine the response of the algae to changes they will encounter. In the 2009/2010 season, samples of the bottom ice bacteria were subjected to changes in the colour of light in an incubation chamber. Samples were filtered and stored in liquid nitrogen for analysis in NZ.

Related URL
Link: VIEW PROJECT HOME PAGE
Description: The Latitudinal Gradient Project homepage


Link: VIEW RELATED INFORMATION
Description: The investigators homepage


Geographic Coverage
 N: -77.015 S: -77.015  E: 162.89  W: 162.89
 Min Depth: 0  Max Depth: 3.2

Temporal Coverage
Start Date: 2008-11-15
Stop Date: 2008-11-27

Start Date: 2009-11-16
Stop Date: 2009-12-29


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > GRANITE HARBOUR
GEOGRAPHIC REGION > POLAR


Science Keywords
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >CHLOROPHYLL    [Definition]
OCEANS >SEA ICE    [Definition]
BIOLOGICAL CLASSIFICATION >BACTERIA/ARCHAEA    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MICROALGAE    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PLANKTON >PHYTOPLANKTON    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >GRAZING DYNAMICS/PLANT HERBIVORY    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >BIODIVERSITY FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PHOTOSYNTHESIS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PRIMARY PRODUCTION    [Definition]


ISO Topic Category
BIOTA
OCEANS


Platform
FIELD SURVEYS    [Information]
FIELD INVESTIGATION    [Information]


Instrument
CTD >Conductivity, Temperature, Depth    [Information]
ICE AUGERS    [Information]


Project
LGP >Latitudinal Gradient Project    [Information]
IPY >INTERNATIONAL POLAR YEAR    [Information]
EBA >Evolution and Biodiversity in the Antarctic    [Information]


Quality
Samples are all held at Victoria University of Wellington. Please contact the investigator for more information.


Data Set Progress
IN WORK


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
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
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


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
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


Publications/References
Rajanahally, M Convey, P, Davy, S and Ryan KG (2010). Physiological responses of sea ice microalgae to temperature, UV radiation and light. Polar Science submitted dec 2009

Ryan K.G., Cowie R., Liggins L., McNaughtan D., Martin A, and Davy S (2009). The short-term effect of irradiance on the photosynthetic properties of Antarctic fast-ice microalgal communities. J Phycology. 45, 1290-1298.

Rajanahally, M. Ecophysiology of Antarctic sea ice algae. . PhD thesis in progress, Victoria University of Wellington, New Zealand.

McMinn, A., Pankowskii, A., Ashworth C, Bhagooli R., Ralph, P., and Ryan, KG (2009). In situ net primary productivity and photosynthesis of Antarctic sea ice algal, phytoplankton and benthic algal communities. Marine Biology submitted

Rajanahally, M, Ryan, KG (2009) Exceptional Sea ice microalgae: Exploring physiological adaptations. Ant NZ conference July 2009

Rajanahally M, Davy S, Ryan, KG (2009) Exceptional defences of sea ice microalgae: Exploring physiological adaptations to light and UV. 9th International Phycological Congress July 2009

Rajanahally M, Davy S, Ryan, KG (2009) The exceptional defences of sea ice microalgae: Exploring physiological adaptations to light and UV Xth SCAR International Biology Symposium. 26 - 31 July,  Sapporo, Japan

Creation and Review Dates
DIF Creation Date: 2009-06-19
Last DIF Revision Date: 2010-09-20


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