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No.10 2006

All you ever wanted to know about estuaries...

Avon-Heathcote fish surveyed

Workshop explores coastal

Making the most of a little iron

All you ever wanted to know about estuaries...

All you ever wanted to know about estuaries ...

Most New Zealanders live near an estuary, but how many of us know what estuaries do for us, and the issues that affect them?
NIWA has gathered together information on New Zealand estuaries in a single resource, designed to inform our communities about how estuaries work, problems that affect estuaries, and some solutions to those problems.

Making the most of a little iron

Making the most of a little iron

Deploying the CTD (Conductivity, Temperature, Depth) instrument, which captures water samples at depth.

A NIWA-led study has shed light on the role of iron in controlling plankton productivity, and points to dust as a source of this important element in the New Zealand EEZ.
Iron is essential to life in the oceans, where it’s used by microscopic plants (phytoplankton) living in the surface layer to convert sunlight to energy.

Workshop explores coastal

Workshop explores coastal

Parliamentary Commissioner for the Environment Dr Morgan Williams (centre) with NIWA’s General Manager Coasts and Freshwater Dr Clive Howard-Williams (left) and Centre Leader for the National Centre for Coasts & Oceans Dr Ian Wright (right).

Nearly 100 participants attended our two-day workshop on ‘Effects of land-based activities on the coastal environment’ in May.

Research subject: Oceans