Oxygen Flux Data for Intertidal Mudflat Cores Under Nutrient Treatments

Experimental data from 5-6 replicate sediment cores per treatment, measuring dissolved oxygen fluxes in response to nutrient addition and low-nutrient water exchange. The study, part of NESP MaC 3.4 and conducted by Griffith University, expanded previous research to include estuaries in northern Australia such as Adelaide, Daly, Flinders, and Norman Rivers. Incubations were conducted over 2 days at 30°C under ambient light, with oxygen measured using Presens® fiber-optic sensors.

Use Cases

• Modeling the relationship between nutrient availability and estuarine primary production based on oxygen flux measurements.
• Comparing the effects of nutrient addition versus low-nutrient water exchange on mudflat sediment metabolism.
• Substantiating previous findings on nutrient impacts in Gulf of Carpentaria and Northern Territory estuaries.
• Assessing the potential impact of water extraction and catchment development on coastal ecosystems.

Strengths

• Includes 5-6 replicate cores for each of three distinct experimental treatments.
• Specifies precise nutrient addition concentrations (1.8 mg N L-1 ammonium, 0.25 µmol P L-1 phosphate).
• Documents controlled incubation conditions (2 days, 30°C, ambient light).
• Expands on prior research by including four estuary systems in northern Australia.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the selected northern Australian estuaries.

Provenance

Source

Australian Ocean Data Network, Griffith University (NESP MaC 3.4)

Collection Method

Sediment cores were collected from mudflats, incubated with treatments (control, nutrient addition, low-nutrient water exchange), and oxygen fluxes were measured using Presens® fiber-optic sensors.

Freshness

Last updated 2026-07-10 17:27:54.229110; freshness should be verified.

Geography

Estuaries in northern Australia, including Adelaide, Daly, Flinders, and Norman Rivers.