Coasts

NIWA aims to provide the knowledge needed for the sound environmental management of our marine resources.

  • Critter of the Week: The tropical slate pencil urchin

    The NIWA Invertebrate Collection mainly consists of samples collected in the deepsea, but occasionally we find shallow exceptions like this stunning sea urchin.
  • Beautiful Browns

    News article
    Do you know where in New Zealand to find Neptune’s necklace or rimurapa? Or how to tell apart Carpophyllum from Cystophora?
  • Beautiful Browns

    An interactive guide to the large brown seaweeds of New Zealand.
  • Te Mahere Kāinga Koiora - Habitat Mapping Module

    This Habitat Mapping module will show you how to collect useful information to describe and monitor habitats in estuaries.
  • Ngā Parangatanga - Sediment Module

    The type of sediment that is deposited in your estuary, be it mud or sand, and how quickly it is deposited, has a big influence on what your estuary will look like, how clear the water will be, and the types of plants and animals that can live in it. Download 7 guides for this module.
  • Critter of the Week: The flowering seapen

    Anthoptilum grandiflorum (Verrill, 1879) is a species of Pennatulacea, or sea pen, in the octocoral group of Cnidaria. Octocorals are so named because they have 8 tentacles to each of their polyps.
  • The decline of New Zealand’s sea lions

    Research Project
    The main breeding population of New Zealand sea lions at the Auckland Islands has halved in size since the late-1990s; NIWA scientists are working with the government and experts from around New Zealand and overseas to understand why.
  • Critter of the Week: All about sea hares and their eggs

    A sea hare is a type of opisthobranch or sea slug in the phylum Mollusca, with soft bodies, a reduced internal shell and two tall rhinophores coming out of their heads that resemble the ears of a hare.
  • From high seas to estuaries

    Feature story
    While Tangaroa might be considered its flagship, NIWA’s extensive range of maritime work could not be completed without the support vessels Kaharoa and Ikatere.
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    NIWA scientist recognised for outstanding achievements

    News article
    A NIWA scientist with an international reputation as an outstanding leader in marine ecological field experiments was last night awarded the prestigious New Zealand Marine Sciences Society (NZMSS) Award.
  • Scientists meet to discuss marine future

    Media release
    Marine scientists are proving they know that it takes good bait to catch a big audience.
  • Mysterious sounds in New Zealand’s Cook Strait

    NIWA has just deployed six acoustic moorings to eavesdrop on mysterious noise makers in the Cook Strait, New Zealand.