Temperate Heart Urchin Toxicity Bioassay Data from Antarctic Sediment

ASAC_2201 project data describes the toxicity of marine sediment spiked with contaminated soil from the Thala Valley tip site at Casey to the temperate heart urchin Echinocardium cordatum. The dataset includes daily observations over up to 10 days, with fields for Date, Time, Urchin, Buried, Alive, Salinity, Dissolved Oxygen, pH, and Temperature. The data was last updated on August 8, 2001.

Use Cases

• Modeling burial behavior as a toxicity endpoint based on the 'Buried' field.
• Analyzing survival rates in contaminated sediment based on the 'Alive' field.
• Correlating environmental parameters like 'Salinity', 'Temperature', and 'pH' with observed biological effects.
• Training classifiers to predict sediment toxicity levels from physicochemical measurements.

Strengths

• Includes multiple environmental parameters (Salinity, Dissolved Oxygen, pH, Temperature) per observation.
• Data collection was part of a structured umbrella project (ASAC_2201).
• Observations were recorded daily over a defined 10-day exposure period.

Limitations

• Last updated 2001-08-08 23:59:59.999000; freshness should be verified.
• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

AU_AADC

Collection Method

Laboratory bioassay exposing the urchin Echinocardium cordatum to spiked sediment with daily observations.

Time Range

Data collection period is not specified; last update was in 2001.

Freshness

Last updated 2001-08-08 23:59:59.999000

Geography

Thala Valley tip site at Casey Station, Antarctica.