Seabed Sediment Physical and Geochemical Variables from Eastern Bonaparte Gulf

124 seabed samples provide baseline data on 74 physical and chemical variables from a 2009/2010 survey in the eastern Bonaparte Gulf. Geoscience Australia collected this data to characterize sediment properties and their influence on benthic biodiversity, with analysis presented at the AMSA2013 conference.

Use Cases

• Apply clustering methods like UPGMA to the 74 physical and chemical variables to discriminate infauna communities.
• Analyze cross-shelf transitions in sediment composition using variables like Mn, As, and P enrichment.
• Model the influence of sediment clusters, defined by variables such as grain-size and Si-Al relations, on benthic biodiversity patterns.
• Investigate relationships between sponge/gorgonian occurrences and geochemical signatures like Nd/Sr ratios and δ15N.

Strengths

• Dataset comprises 74 distinct physical and chemical variables per sample, offering multidimensional sediment characterization.
• Analysis is grounded in 124 seabed samples collected during a dedicated seabed mapping survey.
• Clustering results showed a high cophenetic correlation of 0.82, indicating reliable structure in the data.

Limitations

• Sample size of 124 may limit statistical power for fine-grained spatial or ecological modeling.
• Data is from a single survey in 2009/2010, representing a specific snapshot in time for the eastern Bonaparte Gulf.
• Primary data formats are HTML and PDF, requiring extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Seabed mapping surveys collecting physical, chemical, and biological property data.

Time Range

Survey conducted in 2009/2010.

Freshness

null

Geography

Eastern Bonaparte Gulf, Australia.