Project information
TRULL, Dr Thomas (Tom)
CSIRO Marine & Atmospheric Research
Marine Science
Project aim
The project will deploy deep ocean moorings with automated “traps” that will obtain a week by week record of the amount of sinking particles that fall from the surface to the deep sea. A wide range of analyses will be performed on the particles after the moorings are recovered, including microscopic studies of their biological origin, and determinations of their chemical composition, particularly for nutrient elements such as carbon, nitrogen, phosphorous and silica. The research is important to understanding the role of the Sub-Antarctic ocean in controlling atmospheric CO2 levels including moderating industrial inputs, and the relations between surface and deep ecosystems.
Related publications
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Reduction in size of the calcifying phytoplankton Calcidiscus leptoporus to environmental changes between the Holocene and modern Subantarctic Southern Ocean Frontiers in Marine Science, 2023
(Ref: 16846)
Category 1: Peer-reviewed literature
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Indices based on silicoflagellate assemblages offer potential for paleo-reconstructions of the main oceanographic zones of the Southern Ocean Geo-Marine Letters, 2016
(Ref: 15766)
Category 1: Peer-reviewed literature
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Seasonality of biological and physical controls on surface ocean CO2 from hourly observations at the Southern Ocean Time Series site south of Australia Global Biogeochemical Cycles, 2015
(Ref: 15627)
Category 1: Peer-reviewed literature
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Latitudinal and temporal distributions of diatom populations in the pelagic waters of the Subantarctic and Polar Frontal zones of the Southern Ocean and their role in the biological pump Biogeosciences, 2015
(Ref: 15767)
Category 1: Peer-reviewed literature
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Seasonal variations, origin, and fate of settling diatoms in the Southern Ocean tracked by silicon isotope records in deep sediment traps Global Biogeochemical Cycles, 2015
(Ref: 15768)
Category 1: Peer-reviewed literature