Dissolved organic phosphorus speciation in the waters of the Tamar estuary (SW England)

P Monbet; ID McKelvie; PJ Worsfold

Journal article

Dissolved organic phosphorus speciation in the waters of the Tamar estuary (SW England)

P Monbet, ID McKelvie, PJ Worsfold

Geochimica Et Cosmochimica Acta | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2009

DOI: 10.1016/j.gca.2008.11.024

Abstract

The speciation of dissolved organic phosphorus (DOP) in the temperate Tamar estuary of SW England is described. Eight stations from the riverine to marine end-members were sampled during four seasonal campaigns in 2007 and the DOP pool in the water column and sediment porewater was characterized and quantified using a flow injection manifold after sequential enzymatic hydrolysis. This enabled the enzymatically hydrolysable phosphorus (EHP) fraction and its component labile monoester phosphates, diester phosphates and a phytase-hydrolysable fraction that includes myo-inositol hexakisphosphate (phytic acid), to be determined and compared with the total DOP, dissolved reactive phosphorus (DRP) ..

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University of Melbourne Researchers

Ian McKelvie Author

Grants

Funding Acknowledgements

We would like to thank the associate editor Joe Werne and the anonymous reviewers for their constructive comments. This project "P-DIAGENEX" has been supported by a Marie Curie Outgoing International Fellowship of the European Community programme "Structuring the European Research Area" under contract MOIF-CT-2005-008073 for P.M.