Epifaunal assemblages of the eastern Great Australian Bight: Effectiveness of a benthic pr

A study of 797 species across 10 phyla collected from 65 sampling tows in the eastern Great Australian Bight. The research, provided by Parks Australia, analyzes epifaunal macro-invertebrate assemblages in relation to water depth and sediment type to assess the effectiveness of a Benthic Protection Zone. The dataset was last updated in July 2026.

Use Cases

• Modeling species richness and biomass relationships based on depth and sediment mud percentage mentioned in the description
• Identifying distinct epifaunal assemblages correlated with environmental factors like depth and sediment type
• Evaluating the representativeness of a Benthic Protection Zone for regional biodiversity based on the 54% species coverage finding
• Analyzing the dominance of sessile, suspension-feeding organisms (poriferans, ascidians, bryozoans) in soft-sediment ecosystems

Strengths

• Includes data on 797 species and 10 phyla from 65 sampling tows, providing a substantial taxonomic inventory
• Quantifies biomass and species richness relationships with environmental variables like depth and sediment mud percentage
• Identifies six distinct epifaunal assemblages, offering a structured view of community composition

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 data_gov_au, focusing on a specific region of the Australian shelf

Provenance

Source

Parks Australia, referencing a source publication

Collection Method

Sampling via a 1.8 m wide epibenthic sled with a 50 mm mesh bag over 65 five-minute tows

Freshness

Last updated 2026-07-16 22:51:59.862112; freshness should be verified

Geography

Continental shelf of the eastern Great Australian Bight, including the western Eyre Peninsula and Head of the Bight