The Australian Ocean Data Network provides a dataset modelling bio-irrigation rates in Port Phillip Bay sediments. It contains results from benthic chamber deployments using deuterium and caesium tracers to measure pore-water advection depths and rates. The data was last updated on April 16, 2026.
Use Cases
- Modeling pore-water solute transport across the sediment-water interface based on tracer incubation data.
- Comparing bio-irrigation rates and depths across different regions of a bay based on sediment type.
- Estimating whole-bay water column turnover through sediments based on advection rate measurements.
- Assessing the consistency of infauna distribution and activity within defined sediment regions.
Strengths
- Data is derived from seven benthic chambers deployed at four distinct sites.
- Modeling indicates specific advection depths (20-50 cm) and rates (150-700 mL h-1).
- Multiple chambers within the same region show consistent results, suggesting reliable local measurements.
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 uncertainty in model results for the caesium tracer due to adsorption onto sediment particles.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Data gathered from benthic incubation chambers with deuterium and caesium tracer injections.
- Freshness
- Last updated 2026-04-16 09:41:00.154710; freshness should be verified.
- Geography
- Port Phillip Bay