56 recruitment samples were collected from a manipulative field experiment at Casey Station, East Antarctica, examining the effect of location, depth, and sediment contamination on soft-sediment infauna. The study was conducted by the Australian Antarctic Data Centre, with data collected from March to November during the Austral winter. It includes species counts and measurements of metal concentrations like arsenic, cadmium, copper, lead, silver, and zinc.
Use Cases
- Analyze the relationship between metal concentrations (Arsenic, Cadmium, Copper) and Species recruitment counts across different Locations and depths.
- Compare assemblage diversity metrics (e.g., richness, evenness) between Treatment types (polluted vs. control sediment) and depths (15m vs. 25m).
- Model the influence of environmental factors like Toxicity, Lead, and Zinc levels on the abundance of specific taxa such as gammarids and isopods.
- Assess spatial variability in recruitment by analyzing data grouped by Site and replicate within the Brown Bay and O'Brien Bay locations.
Strengths
- Includes 56 field-collected recruitment samples with detailed species identification.
- Provides measurements for 6 specific metal contaminants (Arsenic, Cadmium, Copper, Lead, Silver, Zinc) and total organic carbon.
- Experimental design compares two distinct locations (polluted vs. control), two depths, and two sediment treatments.
Limitations
- Sample size is limited to 56 total recruitment samples, which may constrain statistical power for multivariate analysis.
- Data is temporally stale, collected during a single Austral winter season ending in November 1997.
- Geographic scope is restricted to two bays near Casey Station, East Antarctica, limiting generalizability.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC), linked to ASAC 1100.
- Collection Method
- Manipulative field experiment using defaunated sediment trays placed at 15m and 25m depths, with samples sieved at 500 micrometers and sorted to species.
- Time Range
- Austral winter from March to November (likely 1997).
- Freshness
- null
- Geography
- Casey Station, East Antarctica; specifically Brown Bay (polluted) and O'Brien Bay (control).