Electronic field form templates have been developed to support community-based monitoring (CBM) groups to capture stream health observations and measurements in an efficient and standardised way.
NIWA has released two booklets to provide advice on the cultivation of native submerged macrophytes to help rehabilitation initiatives in freshwater and saltwater environments.
Alligator weed was introduced to Northland, New Zealand in the 1880s-1900s, and is now well established in the region and further south to the Waikato.
Eutrophication refers to increasing levels of plant nutrients in a water body, and increasing risks that algae and aquatic plants will growth to nuisance levels and degrade water quality.
A new programme at NIWA will focus on finding ways to protect our freshwater species now and in the future.
A project to explore whether kākahi (native freshwater mussels) can be used to help clean up New Zealand lakes has taken a step forward, with the launch of bioremediation rafts in Lake Ohinewai in the Waikato.
NIWA’s recently commissioned autonomous hydroacoustic boat has been used to survey lakes for Auckland Council, including Lakes Rototoa and Tomarata. Hydroacoustic surveys provide detailed information about the underwater environment for lake management.
The Lake Restoration Handbook: A New Zealand Perspective addresses this need through a series of chapters that draw on recent advances in modelling and monitoring tools, citizen science and First Peoples’ roles, catchment and lake-focused restoration techniques, and policy implementation.