Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise

Researchers studied persistent organohalogen contaminants (POCs) in the eastern Antarctic sector. Samples were collected during January and February 2006 and originated from 12 sampling stations. They were analysed for greater than 100 organohalogen compounds including chlorinated pesticides, polychlorinated biphenyls (PCBs), polybrominated organic compounds and polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs). The suspected naturally occurring organohalogen, 2,4,6-tribromoanisole (TBA) as well as delta-HCH; o,p'- DDE; o,p'-DDD; p,p'-DDD; p,p'-DDT; penta-chlorobenzene (PeCB); HCB; heptachlor-exoepoxide; heptachlor; trans-nonachlor, mirex and toxaphene congeners Tox-26 (B8-1413), Tox-40+41 (B8-1414+ B8-1945) and Tox-50 (B8-2229) were quantified in all samples analysed whilst PCB-101, gamma-HCH, p,p'-DDE cis-nonachlor, Tox-42a (B8-806) and Tox-44 (B8-2229) were quantified in greater than or equal to 75% of samples analysed. Organochlorine pesticides dominated measured krill contaminant burdens with hexachlorobenzene (HCB) as the single most abundant compound quantified: 4.37 ng/glw (lipid weight) or 0.2 ng/gww (wet weight). HCB concentrations were comparable to those detected at this trophic level in both the Arctic and temperate northwest Atlantic, lending support to the hypothesis that HCB will approach global equilibrium at a faster rate than other POCs. Para, para'-dichlorodiphenylethene (p,p'- DDE) was detected at notable concentrations: 2.6 ng/glw 0.13 ng/gww. In contrast to the Arctic, PCBs did not feature prominently in contaminant burdens of Antarctic krill: 1.2 ng g- 1 lw and 0.05 ng/gww., dominant PCB congeners were PCB-18, PCB-28, PCB-31 and PCB- 153. The major commercial polybrominated diphenyl ether (PBDE) congeners -99 and -47 were quantified at low background levels (0.67 ng/glw , 0.03 ng/gww and 0.35 ng/glw, 0.007 ng/gww respectively) with clear concentration spikes observed at around 70 degrees E , in the vicinity of modern, active research stations. The suspected naturally occurring brominated organic compound, 2,4,6-tribromoanisole (TBA), was a ubiquitous contaminant in all samples 49 whereas the only PCDD/Fs quantifiable were trace levels of octachlorodibenzo-p-dioxin (OCDD) and 1,2,3,4,7,8/1,2,3,4,7,9-hexachlorodibenzofuran (HxCDF).


This work has been incorporated in AAS project 3115 (ASAC_3115), Persistent Organic Pollutants and Emerging Contaminants of Concern; System Input From Local and Distant Contamination Sources.

Simple

Identification info

Alternate title
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise
Date (Publication)
2011-12-09
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/5aea88ec99503

Originator

Bengston-Nash, S.

Publisher

Australian Antarctic Data Centre

Principal investigator

BENGTSON NASH, SUSAN
39 Kesels Road
Coopers plains
QLD4108
Australia

Collaborator

BENGTSON NASH, SUSAN
39 Kesels Road
Coopers plains
QLD4108
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/ECA032

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Custodian

UQ/ENTOX > National Reserach Centre for Environmental Toxicology, University of Queensland, Australia - BENGTSON NASH, SUSAN ()
39 Kesels Road
Coopers plains
QLD4108
Australia
Topic category
  • Environment
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2006-01-12 2006-02-27
Title
Persistent organohalogen contaminant burdens in Antarctic krill (Euphausia superba) from the eastern Antarctic sector: A baseline study.
Date (Publication)
2008
Citation identifier
407

Author

Bengtson Nash SM, Poulsen AH, Kawaguchi S, Vetter W, Schlabach M
Name
Science of The Total Environment
Issue identification
1
Page
304-314
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOTOXICOLOGY
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)
Keywords
  • krill
  • POCs
  • Southern Ocean ecosystem
  • BROKE-West
NASA/GCMD Earth Science Keywords
  • GC-MS > Gas Chromatograph/Mass Spectrometry
NASA/GCMD Earth Science Keywords
  • R/V AA > R/V Aurora Australis
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • AMD
  • CEOS
NASA/GCMD Earth Science Keywords
  • CONTINENT > ANTARCTICA
  • GEOGRAPHIC REGION > POLAR
  • OCEAN > SOUTHERN OCEAN

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
A copy of the dataset is publicly available for download from the provided URL. A copy of the referenced publication is available for download to AAD staff only at the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ECA032 when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Distributor

UQ/ENTOX > National Reserach Centre for Environmental Toxicology, University of Queensland, Australia - BENGTSON NASH, SUSAN ()
39 Kesels Road
Coopers plains
QLD4108
Australia

Distributor

Fees
Free
Planned available datetime
2011-12-09T00:00:00

Distributor

Fees
Free
Planned available datetime
2011-12-09T00:00:00
Units of distribution
kb
Transfer size
13
Distribution format
  • Excel

Units of distribution
kb
Transfer size
610
Distribution format
  • pdf

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download point for the data

OnLine resource
PROJECT HOME PAGE

Public information for ASAC project 3115

OnLine resource
VIEW RELATED INFORMATION > PUBLICATIONS

Download point for the paper

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
See the referenced paper for more information.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2011-12-09 - record updated by Dave Connell after consultation with Susan Bengtson-Nash. 2018-05-03 - record updated by Dave Connell - basic updates. 2020-07-29 - record updated by Dave Connell - basic updates.

Metadata

Metadata identifier
string/ECA032

Language
English
Character encoding
UTF8

Author

BENGTSON NASH, SUSAN
39 Kesels Road
Coopers plains
QLD4108
Australia

Sponsor

Australian Antarctic Division

Owner

AADC
Title
Parent Metadata Record
Citation identifier
BROKE-West

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
02fc565d-0e38-48f2-92c7-410c76ba2604

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2020-07-29T14:13:53

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/ECA032

Point of truth for the metadata record

Date info (Creation)
2010-06-24T00:00:00
Date info (Last Update)
2020-07-29

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


Provided by

Share on social sites

Access to the record in catalogue

Associated resources

Not available