Assessing the impact of contaminated sediments on hard-substrate Antarctic marine communitiesEntry ID: ASAC_2691
Abstract: Metadata record for data from ASAC Project 2691
See the link below for public details on this project.
Contaminants may persist in marine sediments and be re-suspended during storms or by the activity of animals. This project will assess the impact of contaminated sediments on plants and animals that live directly above the sediment. Rocky-reef organisms form a large component of Antarctica's ... biodiversity and include algae as well as filter feeding animals such as sponges, lace corals, and fanworms. Many of these plants and animals live on boulders embedded within sediments. Information on the response of individuals, populations and communities to contamination will be used to develop sediment quality guidelines appropriate for the protection of the Antarctic environment.
The toxicity of aqueous metals and metal-contaminated resuspended sediment to the spirorbid polychaete Spirorbis nordenskjoldi Ehlers, 1900 was assessed in assays conducted during the 2005/6 and 2006/7 field seasons. A more detailed description of the design of experiments and the methods used can be found in Hill et al, 2009. Spirorbids were exposed to aqueous solutions of copper, lead and zinc singularly, and in mixtures. Spirorbids were also exposed to resuspended metal-spiked sediments.
Spirorbids attached to the brown alga Desmarestia sp were collected from Beall Island, Windmill Islands, East Antarctica, a clean site located approximately 2 km from Casey Station. Algae and animals were kept in the aquarium facility on station, in seawater maintained at 1 C and a 12-h light:dark photoperiod. Seawater was constantly aerated and changed every 5
to 6 d. Spirorbids were used within two weeks of their collection and fed once per week with plankton. Spirorbids were removed from the surface of algal blades 24 h before the start of a test, and allowed to recover in a constant-temperature chamber (CTC) at 0.5 C. Immediately before the start of tests, spirorbids were examined, and only healthy individuals were selected for tests. Spirorbids were determined to be healthy if their tentacular crown (fan) was extended and retracted quickly in response to stimuli.
The download file contains further information on the data.
Start Date: 2005-10-01Stop Date: 2007-03-31
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
OCEANS > MARINE ENVIRONMENT MONITORING
OCEANS > MARINE SEDIMENTS
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ROUNDWORMS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > CNIDARIANS > ANTHOZOANS/HEXACORALS > SEA ANEMONES
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ECHINODERMS
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SEGMENTED WORMS (ANNELIDS)
BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SPONGES
BIOLOGICAL CLASSIFICATION > PLANTS > ALGAE
BIOLOGICAL CLASSIFICATION > PLANTS
BIOLOGICAL CLASSIFICATION > PLANTS > MACROALGAE (SEAWEEDS)
BIOSPHERE > AQUATIC ECOSYSTEMS > BENTHIC HABITAT
BIOSPHERE > AQUATIC ECOSYSTEMS > MARINE HABITAT
Quality The latitudes and longitudes provided in spatial coverage are approximate only.
See the word document in the download file for more information.
Access Constraints The data are currently not publicly available.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2691 when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 90 kb
Distribution Format: Excel, Word
Role: TECHNICAL CONTACT
Phone: +61 2 9385 1825
Email: e.johnston at unsw.edu.au
School Of Biological Sciences University Of New South Wales
Province or State: NSW
Postal Code: 2052
Role: TECHNICAL CONTACT
Phone: +61 3 6227 7289
Fax: +61 3 6227 8035
Email: Nicole.Hill at utas.edu.au
Tasmanian Aquaculture and Fisheries Institute (TAFI) University of Tasmania Private Bag 49
Province or State: Tasmania
Postal Code: 7001
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: dave.connell at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Hill, N.A., King, C.K., Perrett, L.A. and Johnston, E.L. (2009), Contaminated suspended sediments toxic to an Antarctic filter feeder: Aqueous and particulate-phase effects, Environmental Toxicology and Chemistry, 28, 2, 409-417
Hill, N., King, C. and Johnston, E. (2008), Particulate metals add to the toxicity of resuspended marine sediments, SETAC 5th World Congress - Program and Abstracts, Sydney, NSW, 3-7 August, 2008
Hill, N., King, C. and Johnston, E. (2008), Resuspension of contaminated sediments: impacts on a filter feeder, NZMSS & Australian Marine Sciences Association Conference 2008 - Program and Abstracts, Christchurch, New Zealand, 6-10 July 2008 20
Hill, N., King, C., Perrett, L. and Johnston, E. (2008), Resuspension of contaminated sediments: impacts on an Antarctic filter feeder, NZMSS & Australian Marine Sciences Association Conference 2008 - Poster, Christchurch, New Zealand, 6-10 July 2008
Hill, N.A., King, C.K. and Johnston, E.L. (2007), Toxicity of metals and resuspended sediments to an Antarctic spirorbid, SETAC North America - Poster, Milwaukee, Wisconsin, 11-15 November 2007
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-07-27
Last DIF Revision Date: 2016-01-27