On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Ecological monitoring

Monitoring the health of freshwater lakes and streams.

  • Estuary monitoring by communities

    These guidelines outline a recommended minimum set of methods for a community group interested in following habitat changes in an estuary.
  • NZ estuaries

    Over the past decade, NIWA has published many popular articles that deal with estuaries - this overview is intended to bring together and make whole sense of the information published to date in the various popular articles.