Microbial Community Data from Antarctic Hydrocarbon Degradation Experiment

Microbial community structure data from a 2006 sub-Antarctic soil experiment investigating hydrocarbon degradation under different oxygen regimes. The Australian Antarctic Data Centre collected measurements at the experiment's start and after 4, 8, and 12 weeks of incubation. This work was part of AAS projects 2672 and 1163.

Use Cases

• Analyze shifts in microbial community structure over 12 weeks using terminal restriction fragment length polymorphism data.
• Correlate oxygen consumption and carbon dioxide production measurements with changes in specific gene abundances (e.g., alkane mono-oxygenase).
• Model the relationship between nitrate and ammonium concentration data and the quantification of nitrous oxide reductase genes.
• Investigate the link between total petroleum hydrocarbon degradation measurements and real-time PCR data for naphthalene dioxygenase genes.
• Compare baseline microbial community data with time-series data at 4, 8, and 12 weeks to assess incubation effects.

Strengths

• Time-series measurements captured at 4 distinct time points (start, 4, 8, and 12 weeks).
• Data includes multiple microbial analysis methods: terminal restriction fragment length polymorphism and real-time PCR for 4 specific genes.

Limitations

• Sample size and row count are unknown, limiting statistical power assessment.
• Data is from a single 2006 experiment at one location (Macquarie Island), reducing generalizability.
• The dataset contains only microbial community data, excluding the associated physicochemical measurements like oxygen consumption.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC) via NASA Earthdata.

Collection Method

Microcosm experiment using a respirometry system and 14C-labelled hexadecane on soil from Macquarie Island.

Time Range

2006 (experiment year).

Freshness

2006-12-24

Geography

Sub-Antarctic Macquarie Island.