3D Trajectories of Individual Antarctic Krill from 2021 TEMPO Survey

Encompassing 3D coordinates of individual Antarctic krill, including head and tail coordinates for 305 krill and coordinate tracks from video frames. Data was collected during the RV Investigator voyage IN2021_V01 from 29 January to 24 March 2021 using an array of 10 GoPro Hero-8 cameras deployed into krill swarms. The primary goal was to support krill biomass estimates for updating catch limits in CCAMLR's Division 58.4.2-East.

Use Cases

• Analyze 3D coordinates and horizontal distances to model krill swarm density and structure.
• Use head and tail coordinates from the TEMPO_Orientation data to study individual krill orientation and movement vectors.
• Process coordinate tracks from video frames to reconstruct 3D trajectories and individual behavior patterns.
• Correlate camera details and frame references with 3D coordinates to calibrate and validate underwater photogrammetry methods.

Strengths

• Data includes 3D coordinates for 305 individual krill with head and tail positions.
• Collection used an array of 10 GoPro Hero-8 cameras for multi-angle observation.
• Data supports a specific scientific goal: updating krill catch limits for CCAMLR's Division 58.4.2-East.

Limitations

• Sample size is limited to 305 krill from specific swarms, which may not represent the broader population.
• Data collection is tied to a single voyage and time period (Jan-Mar 2021), limiting temporal generalizability.
• The dataset's structure and available variables (beyond coordinates) are not fully detailed.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Collected using an array of 10 GoPro Hero-8 cameras deployed into krill swarms, replicating methods from Burns et al. (2023).

Time Range

29 January to 24 March 2021 (AEST)

Freshness

Data was last updated on 2026-03-20, indicating recent maintenance.

Geography

Off the Australian Antarctic Territory, specifically CCAMLR's Division 58.4.2-East.