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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
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.

Related URL
Link: VIEW PROJECT HOME PAGE
Link: VIEW PROJECT HOME PAGE
Description: LGP-Latitudinal Gradient Project


Parent DIF
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
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
BIOTA
OCEANS


Project
LGP >Latitudinal Gradient Project    [Information]
EBA >Evolution and Biodiversity in the Antarctic    [Information]


Data Set Progress
COMPLETE


Originating Center


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
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


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
Grotti, M., Soggia, F., Lagomarsino, C., Dalla Riva, S., Groessler, W. And Francesconi, K.A. 2008. Natural variability and distribution of trace elements in marine organisms from Antarctic coastal environments. Antarctic Science 20:39-51.

Creation and Review Dates
DIF Creation Date: 2005-10-11
Last DIF Revision Date: 2008-04-22


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