[Parent_DIF='K082_2001_2007_NZ']
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The occurrance of heavy metals in marine benthic organisms, Cape Evans and Terra Nova Bay Entry ID: K082_2001_2002_NZ_5 |
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Summary
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Abstract:
The distribution of heavy metals (such as Cd, Pb and Hg) in different areas of the Antarctic marine coastal ecosystems along a latitudinal gradient, and at sites characterised by different degrees of human impact were investigated at two sites, including Cape Evans and Terra Nova Bay. At Cape Evans marine samples of benthic organisms including the bivalve mollusc Laternula elliptica, the seastar Odontaster validus, the sea urchin Sterechinus neumayeri and the algae Phyllophora antarctic were collected, along with marine sediment samples. Samples of the fish Trematomus bernacchii were collected from a separate event and included in the analysis. The samples were immediately frozen in liquid nitrogen and transported to NZ for processing. The organisms were thawed and their body length and weight measured. A range of tissues were removed, weighed and lyophilized. A sub-sample of homogenized and freeze dried organisms was solubilized. Sediment samples were separated into two different granulometric fractions, dried, homogenized and solubilised. The solubilized samples had the metal fraction bound to the carbonates and organic labile materials extracted. Results from Cape Evans were compared with findings from a project on biogeochemical cycling of Cd, Pb and Hg in the area of Terra Nova Bay.
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Related URL
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Link:
VIEW PROJECT HOME PAGE
Link: VIEW PROJECT HOME PAGE Description: LGP-Latitudinal Gradient Project |
Parent DIF
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This data set description is a member of a collection. The collection is described in K082_2001_2007_NZ |
Geographic Coverage
| N: -77.6347 | S: -77.6347 | E: 166.4145 | W: 166.4145 |
| Min Depth: 15 | Max Depth: 25 |
Temporal Coverage
| Start Date: 2004-11-02 |
| Stop Date: 2004-11-04 |
Location Keywords
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CONTINENT
> ANTARCTICA
> CAPE EVANS
GEOGRAPHIC REGION > POLAR |
Science Keywords
| BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES [Definition] |
| BIOLOGICAL CLASSIFICATION >PLANTS [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >ECOTOXICOLOGY [Definition] |
ISO Topic Category
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BIOTA
OCEANS |
Project
| LGP >Latitudinal Gradient Project [Information] |
| EBA >Evolution and Biodiversity in the Antarctic [Information] |
Data Set Progress
| COMPLETE |
Originating Center
Data Center
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Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
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Personnel
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VONDA
CUMMINGS Role: INVESTIGATOR Phone: +64 7 856 7026 Fax: +64 7 856 0151 Email: v.cummings at niwa.co.nz Contact Address: NIWA PO Box 11-115 City: Hamilton Country: New Zealand |
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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:
1992-06-02
Last DIF Revision Date:
2012-02-01
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