Diatom Nutrient Fluxes in St. Georges Basin, Southeast Australia

Diatoms preferentially sink and deliver the most labile organic matter fraction to the sediment, significantly contributing to the removal of bioavailable nutrients. The dataset contains benthic nutrient and gas fluxes, water column and sediment properties from a coastal lagoon study in south-eastern Australia. It was published by Geoscience Australia Data and last updated in May 2026.

Use Cases

• Modeling phosphorus limitation in oligotrophic water bodies based on high DIN:DIP benthic flux ratios.
• Analyzing the coupling of silicon and carbon cycles based on congruent TCO2:Si benthic flux ratios.
• Studying the fate of organic matter and nutrient burial in sediments based on diatom sinking and decomposition processes.

Strengths

• Focuses on a specific, well-described temperate estuary (St. Georges Basin, southeast Australia).
• Examines detailed biogeochemical coupling mechanisms, including benthic nutrient and gas fluxes.

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/temporal bias inherent to data_gov_au.

Provenance

Source

Geoscience Australia Data

Collection Method

Field study measuring benthic nutrient and gas fluxes, water column and sediment properties.

Time Range

Study conducted during late spring; specific years are not provided.

Freshness

Last updated 2026-05-14 03:09:20.913268; freshness should be verified.

Geography

St. Georges Basin, a coastal lagoon in south-eastern Australia.