Reduced water nutrient concentrations
Nutrient concentration refers to the amount of a nutrient within a waterway. Nutrient concentrations can be increased by human activity. Major sources of nutrients include runoff from agricultural areas (e.g. fertilisers), urban stormwater and wastewater (including sewage), eroded soils and aquaculture (OZCoasts 2010)#. Nutrient load is an important determinant of water quality.
Suggested indicators: Nitrates in water+, Phosphates in water+
Reduced water nutrient load may be associated with:
|Potential associated impacts||Suggested indicators+|
|Reduced potential for algal blooms||
|Changed abundance fish and invertebrates||
Changed health of terrestrial fauna that rely on water source
|Changed vegetation (aquatic and terrestrial) composition and condition||
|Reduced shellfish contamination|
# OZCoasts 2010, Coastal indicators factsheets, Geoscience Australia, http://www.ozcoasts.org.au/indicators/index.jsp (accessed July 6, 2010).
+Descriptions of indicators (PDF, 76K)* provides a brief description of each indicator including techniques and purpose.
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Last updated 7 September 2010