From Geoscience Australia
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Oxygen Demand and Nutrient Release from Sediments in the Upper Swan River Estuary

Created 17/10/2025

Updated 17/10/2025

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The upper Swan River estuary located in the eastern suburban area of Perth in Western Australia experiences periods of poor water quality in the form high nutrient levels, anoxic bottom water conditions and occasional nuisance algae blooms. It has long been suspected that oxygen uptake and nutrient release from estuarine sediments are major drivers for these poor water quality conditions. Geoscience Australia in conjunction with the Department of Water in Western Australia investigated water quality in the upper Swan River estuary through water and sediment quality studies in October 2006, September 2007 and May 2008. The objectives of these studies were (1) to characterise the distribution of sediments, in particular to identify areas of high nutrient release, (2) to better understand conditions leading to high oxygen consumption and nutrient release, and (3) to determine the influence of the bottom water oxygen status on nutrient release from sediments.

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Additional Info

Field Value
Title Oxygen Demand and Nutrient Release from Sediments in the Upper Swan River Estuary
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d5f7d444-56fa-4457-9404-a344468221fa
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Oxygen Demand and Nutrient Release from Sediments in the Upper Swan River Estuary". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/oxygen-demand-and-nutrient-release-from-sediments-in-the-upper-swan-river-estuary1