RV Investigator IN2022_V09: eDNA Sampling in Gascoyne Marine Park

Environmental DNA data from the RV Investigator voyage IN2022_V09, which took place from November 19 to December 19, 2022, departing from and returning to Fremantle. The study compared three eDNA processing methods—filtering OCD water, extracting from sponge pieces, and filtering sponge rinse water—and validated fish detections against trawl survey data. The dataset is cataloged by CSIRO Marlin Data Catalogue.

Use Cases

• Compare eDNA detection efficacy based on the three processing methods described (filtering OCD water, sponge extraction, sponge rinse).
• Validate eDNA-based fish species identification against the bottom trawl survey data mentioned in the description.
• Assess marine biodiversity in the Gascoyne Marine Park region using integrated eDNA samples from deep-water transects.

Strengths

• Voyage dates and location (Fremantle to Fremantle, Nov-Dec 2022) are explicitly defined.
• Methodology for comparing three distinct eDNA processing techniques is described.
• Validation approach using concurrent trawl survey data and a known regional species pool is documented.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data scale are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the single voyage.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

eDNA samples collected via a custom deep-water transect sampler on the RV Investigator voyage IN2022_V09.

Time Range

November 19, 2022 to December 19, 2022

Freshness

Last updated 2026-05-02 10:10:56.878611; freshness should be verified.

Geography

Gascoyne Marine Park, Australia; voyage departed from and returned to Fremantle.