Sediment cores from 7m to 22m depths document the composition of infaunal invertebrate communities in the Windmill Islands near Casey Station. The Australian Antarctic Data Centre collected data during the 2006/07 summer from two sites, McGrady Cove and O'Brien Bay 1, as part of project ASAC 2201. Organisms were sieved, preserved, and identified to species or morphospecies.
Use Cases
- Analyze species richness and community composition changes across the 7m, 11m, 17m, and 22m depth gradient.
- Compare benthic faunal assemblages between the two study sites, McGrady Cove and O'Brien Bay 1.
- Model relationships between water depth and the abundance of specific invertebrate species or morphospecies.
- Establish baseline data on Antarctic infaunal communities for monitoring long-term ecological change.
Strengths
- Data collected from a structured sampling design with 4 depths across 3 transects at 2 sites.
- Fauna identified to species level or established morphospecies, supporting taxonomic analysis.
Limitations
- Sample size is limited to a single summer season (2006/07) and two geographic sites.
- Data scope is restricted to fauna retained on a 500-micron mesh, missing smaller organisms.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC) via NASA Earthdata.
- Collection Method
- Sediment cores collected by hand, sieved through 500-micron mesh, and fauna preserved in formalin for later counting and identification.
- Time Range
- Summer 2006/07.
- Freshness
- null
- Geography
- Windmill Islands, East Antarctica (specifically McGrady Cove and O'Brien Bay 1 near Casey Station).