Antarctic Phytoplankton Photosynthetic Health from FRRF Measurements, December 2003

Maximum photochemical efficiency of photosystem II (Fv/Fm) data collected continuously at 1-minute intervals from the RV L'Astrolabe during a voyage from Hobart to Dumont d'Urville. These measurements, representing the potential photochemical efficiency of phytoplankton, were made on dark-adapted seawater samples from 3 meters depth. The data were aggregated by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Modeling primary production based on Fv/Fm, absorption cross-section, and chlorophyll concentration mentioned in the description
• Analyzing phytoplankton health responses to physical and chemical property variations based on the described sensitivity of Fv/Fm
• Studying diurnal or short-term physiological cycles in Antarctic phytoplankton based on continuous 1-minute interval measurements

Strengths

• Data collected at a high temporal resolution of 1-minute intervals
• Specific measurement protocol described, including 15-minute dark-adaptation and detailed flash sequence parameters
• Clear temporal coverage from December 5 to 11, 2003, and geographic context of a voyage between Hobart and Dumont d'Urville

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is from a single, short voyage in 2003, which may limit generalizability

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Continuous FRR fluorometry measurements from the ship's clean seawater line at 3 m depth

Time Range

2003-12-05 to 2003-12-11

Freshness

Last updated 2026-06-27 16:33:21.387463; freshness should be verified

Geography

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