Survey of soft sediment assemblages around Casey Station (Winter grab samples), June-Sept 1998
Entry ID: ASAC_2201_Casey_benthic_survey3

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Summary
Abstract: Marine soft-sediment assemblages were sampled from shallow (5 - 35m) nearshore regions around Casey Station, Windmill Islands, East Antarctica in winter 1998, using a van-Veen grab (surface area 20 x 25 cm). Samples were seived through a 1 mm mesh and sorted to species where possible. A hierarchical, spatially nested sampling design was used with locations (km's apart), sites (100s of metres apart). Two potentially impacted, polluted locations (Shannon Bay - adjacent to a sewage outfall; and Brown Bay - adjacent to an old garbage tip) were compared with a control location in O'Brien Bay. Data were analysed using both multivariate and univariate statistical methods. Significant differences in assemblages were found between locations and between sites within locations.

Significant differences in the abundances of taxa at several taxonomic levels (species, family, order, phylum) were also found at both spatial scales. Significant differences were also detected between the polluted and control locations.

These samples were collected as part of a larger program examining human impacts in marine benthic assemblages at Casey Station. These samples were used in an analysis of temporal changes in soft-sediment assemblages at Casey. A total of 30 grab samples were collected in this survey.

The fields in this dataset are:

Location
Site
Date
Site/Replicate
Species

Related URL
Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 2201


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 1100


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Geographic Coverage
 N: -66.27913 S: -66.2941  E: 110.53687  W: 110.0
 Min Depth: 5 M  Max Depth: 35 M

Temporal Coverage
Start Date: 1998-06-05
Stop Date: 1998-09-18


Location Keywords
OCEAN > SOUTHERN OCEAN
CONTINENT > ANTARCTICA > East Antarctica
CONTINENT > ANTARCTICA > Casey Station
CONTINENT > ANTARCTICA > Brown Bay
CONTINENT > ANTARCTICA > O'Brien Bay
CONTINENT > ANTARCTICA > Shannon Bay
GEOGRAPHIC REGION > POLAR


Data Resolution
Vertical Resolution: 1 m


Science Keywords
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >CONTAMINANT LEVELS/SPILLS    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >HEAVY METALS CONCENTRATION    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >SEWAGE DISPOSAL    [Definition]
OCEANS >MARINE ENVIRONMENT MONITORING >MARINE OBSTRUCTIONS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >ARTHROPODS >CRUSTACEANS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >ECHINODERMS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >MOLLUSKS    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >SEGMENTED WORMS (ANNELIDS)    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >COASTAL HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >POPULATION DYNAMICS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >SPECIES DOMINANCE INDICES    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA
ENVIRONMENT
OCEANS
TRANSPORTATION


Instrument
GRAB SAMPLERS    [Information]
MICROSCOPES    [Information]


Quality
Gammarid, Isopod, gastropod faunas identified at the Australian Museum. Remaining faunas identified by J. Stark.


Access Constraints
Please contact investigators before using data.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).


May only be used if principal investigators acknowledged.


Keywords
ASSEMBLAGE
BENTHIC
COMMUNITY
DATE
GRAB SAMPLES
HUMAN IMPACT
LOCATION
MACROBENTHOS
POLLUTION
SITE
SITE/REPLICATE
SPECIES
WINTER


Data Set Progress
COMPLETE


Originating Center
Australian Antarctic Division


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia



Distribution
Distribution_Media: HTTP
Distribution_Size: 7 kb
Distribution_Format: excel
Fees: free


Personnel
MARTIN J. RIDDLE
Role: INVESTIGATOR
Phone: +61 3 6232 3573
Fax: +61 3 6232 3351
Email: martin.riddle at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


JONATHAN SEAN STARK
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3589
Fax: +61 3 6232 3158
Email: jonny.stark at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


Publications/References
Stark J. S. (2001) Human impacts and assemblages in marine soft-sediments at Casey Station, Antarctica. Ph.D. thesis, University Of New England.

Creation and Review Dates
DIF Creation Date: 2001-05-01
Last DIF Revision Date: 2014-08-29

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