3D Trajectories and Positioning of Antarctic Krill from 2021 TEMPO Survey

January to March 2021 observations from the RV Investigator voyage IN2021_V01. The dataset contains 3D coordinates for individual Antarctic krill, including head and tail positions for 305 krill and coordinate tracks from video frames, collected to support krill biomass estimates.

Use Cases

• Analyze individual krill behavior by modeling 3D trajectories from video frame coordinate tracks.
• Estimate krill swarm biomass and density using horizontal distance and 3D coordinate data.
• Study krill orientation and movement patterns using head and tail coordinate pairs for 305 individuals.
• Validate swarm behavior models by replicating methods from Burns et al. (2023) with this coordinate data.

Strengths

• Includes 3D positioning data for 305 individual krill with head and tail coordinates.
• Data collected using an array of 10 GoPro Hero-8 cameras deployed into natural krill swarms.
• Part of the 2021 TEMPO survey designed to update catch limits for CCAMLR's Division 58.4.2-East.

Limitations

• Sample size is limited to 305 krill for orientation data, which may restrict statistical power for population-level inferences.
• Data derived from video frames may contain measurement noise or gaps in tracking continuity.
• Geographic scope is restricted to the voyage path between Hobart and the Australian Antarctic Territory.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Collected using an array of 10 GoPro Hero-8 cameras deployed into krill swarms during the RV Investigator research voyage.

Time Range

29 January to 24 March 2021 (AEST)

Freshness

Last updated March 2026.

Geography

Voyage from Hobart (TAS) to Hobart, targeting the Australian Antarctic Territory (CCAMLR Division 58.4.2-East).