Freshwater restoration

A team of NIWA freshwater ecologists are researching the use of biodegradable plant mats to help reintroduce native aquatic plants to degraded freshwater lakes in Aotearoa-New Zealand.

NIWA is using biodegradable “life rafts” to reintroduce native plants to degraded lakes. 

Effective systems to manage contaminant losses

A NIWA-led programme to develop effective, and culturally attuned strategies for managing the freshwater gold clam.

Investigating the effectiveness of an acoustic bubble-screen in minimising the movement of pest fish

Developing the monitoring and evaluation approaches that respond to the hauanga kai aspirations of Ngaati Mahuta

Constructed wetlands a natural solution to reduce agricultural pollution.

About 76 per cent of indigenous freshwater fish species, that’s 39 out of 54, are threatened with extinction or at risk of becoming threatened.

Can native freshwater algae help restore the mauri of local waterways? Lawrence Gullery investigates.

These booklets help provide guidance on the cultivation and restoration of native submerged macrophytes.

Alex Fear looks at the Cultural Keystones Species research programme, a research partnership that grew out of the vision of a Ngāti Hau kaumatua.

NIWA is helping to ensure that New Zealand’s unique and iconic freshwater species are healthy, abundant and thriving.