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The sensitivity of Antarctic marine amphipods to environmental pollutants and the effects of UV light exposure on amphipods exposed to toxins
Entry ID: K026_1997_1998_NZ_1


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Summary
Abstract: The sensitivities of three species of necrophagous marine amphipods to a range of reference toxicants in the water and the effect of UV light exposure on the sensitivity of fluroanthene exposed (a PAH compound derived from fuel oils and present in Winter Quarters Bay sediments) and Winter Quarters Bay (WQB) sediment exposed amphipods was investigated in laboratory exposure experiments. Adults and juveniles of three species of amphipods, Orchomene plebs, Orchomene pinguides and Paramoeia walkeri, were captured near Scott Base and used in the investigation. To determine the sensitivity to toxins, static toxicity tests using a range of 8 different types of toxicants with solution replacements were run for a durations of 4 to 14 days. Tests used 3 replicates at each exposure concentration and 5 control replicates. Up to six widely spaced concentrations were used for each test. To determine the effects of UV light exposure on PAH exposed amphipods, laboratory exposure to fluroanthene, as well as laboratory and in situ exposures to WQB sediments was conducted. In the laboratory, animals were exposed to a range of fluroanthene concentrations under identical test conditions to those outlined for reference toxicants but in reduced lighting. Appropriate solvent and non sunlight controls were conducted. Following four days of exposure to fluroanthene, animals were transferred to clean seawater and exposed to ambient sunlight for two hours. Animals were then returned to low light conditions. Mortality of UV exposed animals was assessed following sunlight exposure and after a further five hours in low light conditions. Concurrently, sediment was sampled from the heavily polluted WQB and animals were exposed in the laboratory and in situ in cages on the sea floor in WQB. At the completion of the exposures, animals were transferred to clean conditions and exposed to direct sunlight for 2 hours. Mortality was assessed as for reference toxicity tests. The determination of rates of toxicant uptake and elimination can enable predictions to be made regarding the potential for bio concentration of substances within organisms and the potential for bioaccumulation of substances in the Antarctica marine ecosystem.
Geographic Coverage
 N: -77.8478 S: -77.8478  E: 166.6683  W: 166.6683
 Min Depth: 0  Max Depth: 10

Temporal Coverage
Start Date: 1997-10-21
Stop Date: 1997-11-14


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >WATER MANAGEMENT    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >ENVIRONMENTAL ASSESSMENTS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >ARTHROPODS >CRUSTACEANS >AMPHIPODS


ISO Topic Category
BIOTA
ENVIRONMENT


Platform
LABORATORY    [Information]
FIELD INVESTIGATION    [Information]


Data Set Progress
COMPLETE


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
NICK LING
Role: INVESTIGATOR
Phone: +64 7 838 4466 Extn 6039
Fax: +64 7 838 4218
Email: n.ling at waikato.ac.nz
Contact Address:
Department of Biological Sciences
University of Waikato
Private Bag 3105
City: Hamilton
Postal Code: 3105
Country: New Zealand


CHRIS HICKEY
Role: INVESTIGATOR
Phone: +64 7 856 1713
Fax: +64 7 856 0151
Email: c.hickey at niwa.co.nz
Contact Address:
NIWA
PO BOX 11115
City: Hamilton
Postal Code: 3216
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



Creation and Review Dates
DIF Creation Date: 2009-05-21
Last DIF Revision Date: 2009-06-06


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