Southern Ocean data collected during the RV Investigator voyage IN2021_V01 from Hobart between 29 January and 24 March 2021. The dataset comprises 110 environmental DNA (eDNA) samples from surface and near-seafloor depths, analyzed with a euphausiid-specific metabarcoding marker, alongside video footage captured by a CTD-mounted camera system.
Use Cases
- Detect and characterize Southern Ocean krill species based on euphausiid-specific metabarcoding data.
- Analyze krill swarm distribution and behavior by correlating eDNA results with video observations.
- Study marine biodiversity at different ocean depths using paired surface and near-seafloor samples.
- Validate eDNA sampling methods for Antarctic ecosystems using concurrent visual data.
Strengths
- 110 eDNA samples provide a substantial genetic dataset for analysis.
- Data collection integrates two modalities: genetic sequencing and approximately 5-minute video clips per station.
- Samples were collected from specific, documented locations: CTD stations and around krill swarms.
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 voyage.
Provenance
- Source
- Australian Ocean Data Network, collected via the Marine National Facility RV Investigator.
- Collection Method
- eDNA samples filtered from 5L seawater; video data captured by CTD-mounted camera.
- Time Range
- 29 January to 24 March 2021 (AEST).
- Freshness
- Last updated 2026-05-05 04:10:22.112224; freshness should be verified.
- Geography
- East Antarctic sector of the Southern Ocean, voyage from Hobart (TAS) to Hobart.