Benthic Nutrient Flux and Denitrification Measurements in Port Phillip Bay, 1995-1996

Australian Ocean Data Network provides benthic flux studies from February 1995 to January 1996 in Port Phillip Bay. The dataset focuses on spatial and temporal consistency of nutrient fluxes, chamber calibration, bio-irrigation, and direct N2 measurements for denitrification assessment. Key results include repeated seasonal flux patterns, evidence of denitrification via gas chromatography and mass spectrometry, and analysis of microbial processes.

Use Cases

• Modeling seasonal denitrification efficiency based on measurements at specific sites like the Yarra Estuary.
• Analyzing the relationship between nutrient flux ratios and denitrification activity based on N:C flux ratio data.
• Studying the spatial consistency of benthic processes based on flux data from key sites in the bay.
• Investigating microbial microniche activity based on observations of simultaneous organic carbon oxidation, ammonification, nitrification, and denitrification.

Strengths

• Data collection spans a full annual cycle from February 1995 to January 1996.
• Includes direct measurements of N2 fluxes using Gas Chromatography and mass spectrometry to confirm denitrification.
• Study design addresses multiple factors: spatial/temporal flux consistency, chamber calibration, bio-irrigation, and denitrification.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Benthic chamber studies with direct measurements of nutrient and N2 fluxes.

Time Range

February 1995 to January 1996

Freshness

Last updated 2026-04-10 21:28:13.025462; freshness should be verified.

Geography

Port Phillip Bay, Australia, with specific sites including the Yarra Estuary and central basin.