Environmental DNA sequence data and video observations were collected during the 2021 TEMPO voyage in the East Antarctic sector of the Southern Ocean. The dataset comprises 110 eDNA samples and video footage from surface and near-seafloor depths, acquired via the Marine National Facility RV Investigator voyage IN2021_V01 between January 29 and March 24, 2021. A euphausiid-specific metabarcoding marker was applied to detect Southern Ocean krill species.
Use Cases
- Detect and characterize Southern Ocean krill species based on eDNA metabarcoding data.
- Correlate krill presence with environmental context using concurrent video observations.
- Analyze spatial distribution of euphausiids across surface and near-seafloor depths.
- Study krill swarm dynamics by combining eDNA data from seawater intake samples with video footage.
Strengths
- 110 eDNA samples collected from specific depths and around krill swarms.
- Data collection is paired, with both eDNA sequences and video footage from the same stations.
- Voyage details are specific, including the vessel (RV Investigator), voyage code (IN2021_V01), and precise date range.
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 the single 2021 voyage.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Collected via CTD-mounted seawater filtration for eDNA and a CTD-mounted camera system for video during a research voyage.
- Time Range
- January 29 to March 24, 2021
- Freshness
- Last updated 2026-06-16 21:00:07.542127; freshness should be verified.
- Geography
- East Antarctic sector of the Southern Ocean