Phytoplankton Photosynthetic Health Measurements from RV L'Astrolabe

Maximum photochemical efficiency of photosystem II (Fv/Fm) data collected continuously at 1-minute intervals from seawater at 3 m depth on the RV L'Astrolabe. The dataset likely contains fluorescence yields measured using a Fast Repetition Rate Fluorometry (FRRF) instrument with a specific flash sequence. It was published by the Australian Ocean Data Network and last updated on 2026-06-16.

Use Cases

• Diagnose phytoplankton community health based on Fv/Fm measurements.
• Model primary production by combining Fv/Fm with chlorophyll concentration and absorption cross-section.
• Study phytoplankton's instant response to variations in physical and chemical water properties.
• Monitor photosynthetic potential in marine environments using continuous, high-frequency fluorometry.

Strengths

• Data collected at high temporal resolution (1-minute intervals).
• Measurements are dark-adapted, following a standardized 15-minute protocol.
• Uses a detailed and specified FRRF flash sequence (100 subsaturation and 20 relaxation flashlets).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Freshness

Last updated 2026-06-16 22:00:40.947670; freshness should be verified.

Geography

Voyage area of RV L'Astrolabe (specific region unknown).