March 2012 data captures a large-scale early-autumn phytoplankton bloom off Cape Darnley, East Antarctica. The dataset includes protist species counts, pigment analyses, dissolved nutrient concentrations, and calibrated underway fluorometer data, collected opportunistically from the RSV Aurora Australis. Analysis was conducted by researchers from the Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC).
Use Cases
- Correlate protist species abundances from microscopy counts with HPLC-derived pigment groups to identify key phytoplankton community members.
- Calibrate satellite-derived chlorophyll estimates using the linear relationship established between underway fluorometer and HPLC chlorophyll a measurements.
- Analyze dissolved nutrient concentrations (e.g., nitrates, phosphates) to assess environmental conditions driving the bloom.
- Map the spatial extent and intensity of the bloom using georeferenced underway data and associated map files.
Strengths
- Data covers a specific, significant biological event from March 2012.
- Integrates multiple measurement types: microscopy, HPLC, nutrient analysis, and underway fluorometry.
- Includes calibration data linking fluorometer readings to HPLC chlorophyll a for improved accuracy.
Limitations
- Sample size is limited to a single bloom event in March 2012.
- Spatial coverage is restricted to the region off Cape Darnley, East Antarctica.
- Data recency is over a decade old, limiting analysis of recent trends.
Provenance
- Source
- Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC), data hosted by AU_AADC.
- Collection Method
- Opportunistic ship-based sampling from RSV Aurora Australis, analyzed via microscopy and HPLC; bloom initially detected by MODIS satellite.
- Time Range
- March 2012
- Freshness
- null
- Geography
- Ocean region off Cape Darnley, East Antarctica.