FRRF Phytoplankton Health Measurements from RV L'Astrolabe, October 2004

FRRF data collected from 19/10/2004 to 24/10/2004 on a voyage from Hobart to Dumont d'Urville. The dataset contains continuous measurements of the maximum photochemical efficiency of photosystem II (Fv/Fm), a key indicator of phytoplankton health, taken at 1-minute intervals from seawater at 3 meters depth. It was collected by the Australian Ocean Data Network via the ship's clean seawater line.

Use Cases

• Modeling primary production based on Fv/Fm, absorption cross-section, and chlorophyll concentration mentioned in the description.
• Assessing phytoplankton community stress responses based on continuous Fv/Fm measurements.
• Analyzing diurnal or short-term variability in photosynthetic efficiency based on 1-minute interval time-series data.
• Correlating phytoplankton photochemical health with physical oceanographic conditions during a transect voyage.

Strengths

• Data collected at a high temporal resolution of 1-minute intervals.
• Measurements focus on Fv/Fm, a widely utilized and diagnostically significant fluorescence parameter.
• Includes a specific time range (19-24 October 2004) and geographic transect (Hobart to 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 may reflect geographic/temporal bias inherent to a single, short voyage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Continuous FRR fluorometry measurements from the ship's clean seawater line at 3m depth, with dark-adapted samples.

Time Range

19/10/2004 to 24/10/2004

Freshness

Last updated 2026-06-27 19:34:06.002038; freshness should be verified

Geography

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