Southern Ocean data from shipboard incubations of intercepted sinking particles at depths of 200-500 meters. The dataset likely contains Apparent Respiratory Quotients (ARQ) measurements from short-term (12h) and long-term (36h+12h) incubations conducted at subantarctic and polar sites. It was published via the Australian Ocean Data Network and last updated in April 2026.
Use Cases
- Modeling particulate organic carbon (POC) flux attenuation based on depth-dependent ARQ measurements.
- Analyzing temporal sequences of microbial substrate degradation based on short-term and long-term incubation comparisons.
- Investigating stoichiometric changes in microbially-altered POC substrates based on ARQ trends.
- Studying limits of microbially-mediated POC degradation in the mesopelagic zone based on conceptual exploration data.
Strengths
- Data captures a critical global process: microbial attenuation of >90% of 10 billion tonnes of sinking POC.
- Includes measurements from distinct incubation types (short-term 12h and long-term 36h+12h) enabling temporal analysis.
- Spatial coverage includes a subantarctic and two polar sites in the Southern Ocean.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified as the last update date is projected to April 2026.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Data collected using particle interceptors/incubators (C-RESPIRE) and shipboard incubations.
- Freshness
- Last updated 2026-04-29 00:18:14.075269
- Geography
- Southern Ocean, including subantarctic and polar sites.