Soft sediment assemblages at Casey Station: (core samples: Nov 1998 - Jan 1999)

• Other Authors: RIDDLE, MARTIN J. (hasPrincipalInvestigator), STARK, JONATHAN SEAN (hasPrincipalInvestigator), STARK, JONATHAN SEAN (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: biota; environment; oceans; transportation; CONTAMINANT LEVELS/SPILLS; EARTH SCIENCE; HUMAN DIMENSIONS; ENVIRONMENTAL IMPACTS; HEAVY METALS CONCENTRATION; SEWAGE DISPOSAL; MARINE OBSTRUCTIONS; MARINE ENVIRONMENT MONITORING; ANIMALS/INVERTEBRATES; BIOLOGICAL CLASSIFICATION; CRUSTACEANS; ARTHROPODS; ECHINODERMS; MOLLUSKS; SEGMENTED WORMS (ANNELIDS); EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC; COASTAL; MARINE ECOSYSTEMS; POPULATION DYNAMICS; BIOSPHERE; ECOLOGICAL DYNAMICS; SPECIES/POPULATION INTERACTIONS; SPECIES DOMINANCE INDICES; COMMUNITY DYNAMICS; COMMUNITY STRUCTURE; ASSEMBLAGE; COMMUNITY; CORE SAMPLES; LOCATION; HUMAN IMPACT; MACROBENTHOS; SITE/REP; POLLUTION; SPECIES; SPATIAL VARIATION; CORING DEVICES; MICROSCOPES; FIELD INVESTIGATION; FIELD SURVEYS; OCEAN > SOUTHERN OCEAN; CONTINENT > ANTARCTICA > East Antarctica; Casey Station; O'Brien Bay; Wilkes; Sparkes Bay; GEOGRAPHIC REGION > POLAR; Antarctic; Southern Ocean; Antarc*; Antarctica
• Online Access: https://researchdata.ands.org.au/soft-sediment-assemblages-jan-1999/699759; https://doi.org/10.4225/15/55F7818C8EC56; https://data.aad.gov.au/metadata/records/ASAC_2201_Casey_benthic_survey4; http://nla.gov.au/nla.party-617536

A survey of macrobenthic assemblages in soft-sediments was done at Casey Station, East Antarctica. Samples were taken by divers using hand-held corers (core size - 10 cm diameter by 10 cm deep). This was the final component of a large nested sampling survey extending over a three year periods with samples taken in three summers and one winter period. The aims were: 1) To examine spatial variation at several scales in these assemblages; 2) To determine if there were differences between potentially impacted areas and control areas; 3) To determine the level of replication, taxonomic resolution and data transformation that are appropriate to studies of human impacts in Antarctic soft-sediment assemblages. Cores were collected by divers in a hierarchical, spatially nested design incorporating 4 scales: Locations (1000s of metres apart), Sites (100s of metres), Plots (10s of metres) and among replicates within plots (~1 metre). This data set consists of 48 core samples from three locations, O'Brien Bay, Sparkes Bay and Wilkes. Samples are sorted mainly to species. Links to ASAC 1100. The fields in this dataset are: Location Site/Rep Species