Seven benthic incubation chambers deployed at four sites in Port Phillip Bay measured bio-irrigation rates using deuterium and caesium tracers. Modelling from the Australian Ocean Data Network indicates advection of overlying water occurs at depths of 20-50 cm below the sediment-water interface at rates between 150 and 700 mL h-1. The data was last updated on 2026-06-27.
Use Cases
- Modeling pore-water solute transport based on deuterium tracer incubation time series.
- Comparing bio-irrigation rates across different regions of a bay based on sediment type and depth.
- Estimating whole-bay water column turnover through sediments based on measured advection rates.
- Assessing the consistency of infauna distribution using results from multiple chambers in the same region.
Strengths
- Data is derived from seven incubation chambers deployed at four distinct sites, providing spatial replication.
- Modelling provides specific quantitative ranges for irrigation depth (20-50 cm) and rate (150-700 mL h-1).
- Multiple chambers deployed in the same region showed consistent results, suggesting methodological reliability.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The description notes that adsorption of caesium tracer onto sediment particles increases model uncertainty.
Provenance
- Source
- Australian Ocean Data Network via data_gov_au
- Collection Method
- Benthic incubation chamber experiments with deuterium and caesium tracers.
- Freshness
- Last updated 2026-06-27 16:38:07.440381; freshness should be verified.
- Geography
- Port Phillip Bay, Australia