IN2021_V01 TEMPO Voyage: Phytoplankton Distribution in the Antarctic Ocean

Phytoplankton distribution and abundance data were collected during the RV Investigator research voyage IN2021_V01 from 29 January to 24 March 2021. The voyage sailed from Hobart to Hobart as part of the 2021 TEMPO survey, with the primary objective of estimating Antarctic krill biomass. Data were surveyed along six north–south transects spanning 55°E to 80°E, extending from approximately 62–63°S to the sea-ice edge.

Use Cases

• Modeling krill habitat suitability based on phytoplankton abundance mentioned in the description
• Analyzing spatial patterns of primary productivity along Antarctic transects
• Comparing ecosystem conditions over time by overlapping with 2006 BROKE-West survey lines
• Supporting updates to CCAMLR precautionary catch limits for krill based on prey availability

Strengths

• Data collection occurred during a dedicated research voyage from 29 January to 24 March 2021
• Surveys covered six north–south transects spanning a longitudinal range from 55°E to 80°E
• Several transects overlap with 2006 BROKE-West survey lines, enabling temporal comparisons

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 the specific voyage and survey lines

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Collected during the Marine National Facility RV Investigator research voyage IN2021_V01.

Time Range

29 January 2021 to 24 March 2021

Freshness

Last updated 2026-06-25 08:38:23.851834; freshness should be verified

Geography

Southern Ocean, transects from 55°E to 80°E, extending from approximately 62–63°S to the sea-ice edge off the Australian Antarctic Territory.