Author:Drew Lohrer, Ivan Franco Rodil
Source:Auckland Council Research, Investigations and Monitoring Unit, RIMU
The Auckland Council requires easily understandable but scientifically defensible indicators of the ecological integrity of its estuarine and coastal areas. A functional indicator developed in New Zealand in 2010 with local knowledge, called the NIWACOOBII, was responsive to strong gradients of mud and heavy metal contaminants in the sediments of Auckland area estuaries. The NIWACOOBII performed better than available indices that had been developed overseas and showed promise as a potential ecological indicator for use in State of the Environment reporting. However, further testing and validation of the NIWACOOBII with independently collected data was deemed necessary prior to adoption and use by the Auckland Council.
Auckland Council technical report TR2011/004
National Institute of Water and Atmospheric Research Ltd, NIWA. Report number HAM2011-013