Organic Geochemistry of Surface Seabed Sediments in Jervis Bay, NSW (2008-2009)

50 samples of surface seabed sediments from Jervis Bay, NSW, collected in August 2008 and February 2009. The dataset includes percentages of total organic carbon (%TOC) and total nitrogen (%TN), TOC/TN ratios, and carbon and nitrogen isotopic ratios. Data were acquired by Geoscience Australia during marine surveys focused on mapping seabed bathymetry and characterising benthic environments.

Use Cases

• Modeling carbon and nitrogen cycling in coastal ecosystems based on isotopic ratios.
• Assessing sediment organic matter sources and quality based on TOC/TN ratios.
• Correlating seabed geochemistry with benthic habitat types observed via underwater video.
• Establishing baseline biogeochemical conditions for environmental monitoring in Jervis Bay.

Strengths

• 50 surface sediment samples with paired biogeochemical measurements.
• Data collection is colocated with bathymetric mapping and benthic habitat observations.
• Samples cover two distinct time periods (August 2008 and February 2009).

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 bias inherent to the specific 3x5 km survey grid in Jervis Bay.

Provenance

Source

Geoscience Australia Data

Collection Method

Samples acquired using the MV Kimbla during marine surveys (GA303, GA305, GA309, GA312). Surface sediments (0.0 to 2.0 cm) were collected for biogeochemical analysis.

Time Range

August 2008 and February 2009 (surveys conducted 2007-2009).

Freshness

Last updated 2026-05-26 19:24:31.929105; freshness should be verified.

Geography

Jervis Bay, New South Wales, Australia, concentrated in a 3x5 km survey grid (Darling Road Grid) and additional representative habitat types.