Phytoplankton Photosynthetic Health Measurements from the Southern Ocean, 2007-2008

Southern Ocean data collected from the RV L'Astrolabe between December 31, 2007, and January 5, 2008, on a voyage from Hobart to Dumont d'Urville. The dataset contains Fast Repetition Rate Fluorometry (FRRF) measurements, including the maximum photochemical efficiency of photosystem II (Fv/Fm), taken at one-minute intervals from a continuous seawater supply at 3 meters depth. It was aggregated by the Australian Ocean Data Network.

Use Cases

• Modeling phytoplankton primary production based on Fv/Fm, absorption cross-section, and chlorophyll concentration mentioned in the description.
• Assessing phytoplankton community health and stress responses based on continuous Fv/Fm measurements.
• Analyzing diurnal or short-term physiological variability based on one-minute interval time-series data.
• Correlating phytoplankton photochemical efficiency with physical oceanographic conditions during the transit.

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 and potentially data-sparse region (Southern Ocean transit route).

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 a single, short research voyage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Continuous FRR fluorescence measurements from the ship's clean seawater line, with dark-adapted samples.

Time Range

2007-12 31 to 2008-01-05

Freshness

Last updated 2026-04-28 13:24:10.656368; freshness should be verified.

Geography

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