Kaipara Sediment Mitigation Study
Streamlined Environmental is leading a consortium of researchers that will develop a model of Kaipara Harbour and its catchment for assessing costs and benefits of sediment mitigation. The model will predict the extent to which various objectives framed in terms of sediment “attributes” will be achieved by different sediment mitigation strategies, and the associated costs to the public, landowners and sector groups.
The sediment attributes will be sedimentation rate and seabed muddiness in the harbour, and suspended-sediment concentration, euphotic depth and water clarity in streams and rivers.
We will also develop a tool that will be used to assist in the development of consistent farm-scale sediment mitigation plans. The project is funded by Northland Regional Council, Auckland Council and the Ministry for the Environment. The team consists of Malcolm Green, Ngaire Phillips and Ashlee Dunsmuir (SEL), Adam Daigneault, John Dymond, Les Basher and Alexander Herzig (Landcare Research), Andrew Swales, Andrew Hughes and Drew Lohrer (NIWA), and Christoph Matthaei (University of Otago).