FRRF Measurements of Phytoplankton Health from RV L'Astrolabe Voyage, October 2005

Maximum photochemical efficiency (Fv/Fm) data for phytoplankton was collected continuously at one-minute intervals from seawater at 3 m depth on the RV L'Astrolabe from October 18 to 23, 2005, during a voyage from Hobart to Dumont d'Urville. The data, provided by the Australian Ocean Data Network, includes measurements taken in a dark-adapted state using Fast Repetition Rate Fluorometry (FRRF). These fluorescence parameters can be used alongside absorption cross-section and chlorophyll concentration to estimate primary production.

Use Cases

• Modeling primary production based on Fv/Fm, absorption cross-section, and chlorophyll concentration mentioned in the description.
• Assessing phytoplankton community health and stress responses to environmental changes using the Fv/Fm parameter.
• Analyzing high-frequency temporal patterns in photosynthetic efficiency during a ship transect.
• Calibrating satellite ocean color data with in-situ measurements of phytoplankton photophysiology.

Strengths

• Data was collected at a high temporal resolution of one-minute intervals.
• Measurements were taken under controlled dark-adapted conditions with a 15-minute adaptation period.
• The dataset covers a specific Antarctic research voyage over a 6-day period in October 2005.

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 and temporal bias inherent to a single ship voyage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Continuous sampling from the ship's clean seawater line at 3 m depth, analyzed with Fast Repetition Rate Fluorometry.

Time Range

2005-10-18 to 2005-10-23

Freshness

Last updated 2026-06-27 21:08:45.129783; freshness should be verified.

Geography

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