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Earth Science Services | Environmental Advisories | Marine Advisories | Marine Biology

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  • This dataset is focusing on using environmental DNA (eDNA) to measure offshore marine biodiversity in Southeast Australia. The eDNA samples were collected during two SEA-MES voyages aboard the RV Investigator: IN2023_V05 (July 2023) and IN2024_V03 (May 2024). Sampling sites spanned the continental shelf, from Tasmania to Batemans Bay, NSW, with water collected from both surface and bottom depths via Niskin bottles and a deep-tow camera system. A total of over 100 CTD deployments were conducted across these sites, providing comprehensive spatial coverage. The dataset includes processed eDNA metabarcoding results, containing sequence read counts and taxonomic data derived from DNA sequences, with a focus on fish but extending across the full tree of life, including bacteria, invertebrates, and vertebrates. Over 180 million sequences were generated, using a variety of markers such as mtDNA 16S (fish), mtDNA COI Leray (metazoans), and V4 18S (eukaryotes). This dataset is valuable for understanding marine biodiversity in southeast Australia and advancing offshore eDNA techniques.

  • This catch dataset comprises specimen-based occurrence records collected by the Western Australian Museum from the Indian Ocean during a series of marine research voyages. Specimens were obtained aboard the RV Investigator during voyages IN2021_V04 and IN2022_V08 (Biodiversity Assessment of Australia’s Indian Ocean Territories) and IN2022_V09 (Valuing Australia’s New Gascoyne Marine Park), and aboard the RV Falkor during voyage FK200308 (Illuminating Biodiversity of the Ningaloo Canyons) in 2020. The dataset includes taxonomic identifications and associated collection metadata such as date, geographic location, and voyage information.

  • This dataset comprises the Multi-net plankton sampling collected during the SEA-MES program across four RV Investigator voyages (IN2023_V05, IN2024_V03, IN2024_V05, IN2025_V04). A total of 173 Multi-net operations were conducted, using 100 µm and 500 µm mesh nets to collect depth-stratified samples through the water column, capturing both day and night to assess diel vertical migration. The dataset includes 560 samples from 100 µm nets and 140 samples from 500 µm nets, providing information on zooplankton composition, biomass, and community structure, including 58,246 individuals from 105 genera and 70 families identified to date. These data provide a detailed view of pelagic biodiversity across the south-eastern continental shelf and upper slope of Australia.