Antarctic Phytoplankton Photosynthetic Health from FRRF Measurements, October 2004

Southern Ocean data collected from the RV L'Astrolabe between Hobart and Dumont d'Urville from October 19 to 24, 2004. The dataset contains continuous Fast Repetition Rate Fluorometry (FRRF) measurements of phytoplankton photosynthetic efficiency (Fv/Fm) and related parameters at one-minute intervals. Data were provided by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Modeling primary production based on chlorophyll concentration and PSII absorption cross-section mentioned in the description
• Assessing phytoplankton community health and stress responses based on the Fv/Fm parameter
• Analyzing high-frequency temporal variability in photosynthetic efficiency from one-minute interval measurements
• Correlating phytoplankton photochemical efficiency with physical and chemical oceanographic properties

Strengths

• Data collected at a high temporal resolution of one-minute intervals
• Measurements focus on a key physiological parameter (Fv/Fm) widely used in phytoplankton research
• Covers a specific transect in the Southern Ocean over a 6-day period in October 2004

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic/temporal bias inherent to the single ship track and time period

Provenance

Source

Australian Ocean Data Network

Collection Method

Continuous seawater sampling from 3m depth via ship's clean seawater line, measured with FRR fluorescence in dark-adapted state.

Time Range

19/10/2004 to 24/10/2004

Freshness

Last updated 2026-06-04 06:36:50.936600; freshness should be verified

Geography

Southern Ocean, transect from Hobart, Australia to Dumont d'Urville, Antarctica