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The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Terra Nova Bay

Entry ID: K043_2006_2008_NZ_4

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Summary

Abstract: 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 during the processes of ice formation at the start of winter and ice melting in summer. Brine algae are likely to be adapted to high light ...

Related URL

Link: GET DATA

Description: Andrew Martin PhD Thesis pdf

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: -74.83

S: -74.83

E: 164.5

W: 164.5

Temporal Coverage

Start Date: 2006-11-03

Stop Date: 2006-12-09

Start Date: 2007-11-10

Stop Date: 2007-12-10

Location Keywords

CONTINENT > ANTARCTICA

CONTINENT > ANTARCTICA > TERRA NOVA BAY

GEOGRAPHIC REGION > POLAR

Science Keywords

TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CHLOROPHYLL

BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA

ISO Topic Category

BIOTA

OCEANS

Platform

LABORATORY

FIELD INVESTIGATION

Instrument

PAM > PORTABLE FLUORESCENCE ANALYZERS

Project

LGP > Latitudinal Gradient Project

EBA > Evolution and Biodiversity in the Antarctic

Quality Existing samples are held at Victoria University of Wellington with a spreadsheet of sample numbers. All raw data is held by the investigators. Please contact Dr Ken Ryan for more information.

Data Set Progress

COMPLETE

Data Center

Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand

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

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

Martin, A., Hall, J.A., Ryan, K.G. 2009. Low salinity and high-level UV-B radiation reduce single-cell activity in Antarctic sea ice bacteria. Applied and environmental microbiology 75: 7570-7573 2009. doi:10.1128/AEM.00829-09

Martin, A. 2009. Microbial loop dynamics in Antarctic sea-ice. PhD Thesis Victoria University of Wellington. pp 177

Ryan, K.G., Cowie, R.O.M, Liggins, E., McNaughtan, D., Martin, A., Davey, S.K. 2009. The short-term effect of irradiance on the photosynthetic properties of Antarctic fast-ice microalgal communities. Journal of phycology. 10.1111/j.1529-8817.2009.00764.x

Koh, E. Biodiversity of prokaryotes in Antarctic sea ice. PhD thesis in progress, Victoria University of Wellington, New Zealand.

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

Ryan, K.G., Liggins, E., McNaughtan, D., Martin, A., Tay, M. & Davy S.K. (2008). Imaging PAM visualisation of sea ice algae and their response to environmental change. In: Rudenko, N.; Klepikov, A. (Eds.) SCAR/IASC IPY Open Science Conference “Polar Research - Arctic and Antarctic perspectives in the International Polar Year”: Abstract volume (pp. 264). State Scientific Center of the Russian Federation the Arctic and Antarctic Research Institute, Elektronsdart-Print Joint-Stock Company. ISBN 978-5-98364-013-09

Rajanahally, M, Bryant, L. Koh, EY, Davy S., Martin A, Ryan KG (2008) Antarctic sea ice productivity and ecophysiology. NZ Marine Sciences Society Conference Christchurch July 2008.

Rajanahally, M, Ryan KG and Davy S (2007). Antarctic microalgae: physiological responses to environmental changes. New Zealand Marine Sciences Society Annual Conference; Hamilton, New Zealand.

Cowie, R., Liggins L., McNaughtan D, Martin A, Davy S., and Ryan KG (2008) The effect of irradiance on Antarctic fast-ice microalgal communities Antarctic New Zealand Annual Conference, Dunedin July 2008.

Rajanahally, M, Bryant, L. Koh, EY, Davy S., Martin A, Ryan KG (2008). Antarctic sea ice productivity and ecophysiology. Antarctic New Zealand Annual Conference, Dunedin July 2008.

Ryan KG, Davy, SK, O’Toole, R, Martin, A, Ralph P (2006) Effects of Salinity and Light on the Microbial Community in Antarctic Sea Ice. SCAR XXIX/ COMNAP XVIII Conference Hobart 2006.

Creation and Review Dates

DIF Creation Date: 2005-09-22

Last DIF Revision Date: 2010-02-23

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