Oceans

Kaikōura Canyon reveals its muddy secrets

The ear bone of a snapper holds a wealth of information. However, it is not until you look at thousands of them that the picture of a population reveals itself. So where do you get 10,000 snapper ear bones from?

A break in the clouds in a remote Fiordland valley and a chance encounter with a jellyfish under the Antarctic ice provide just some of the highlights from this year’s NIWA Staff Photography competition.

New NIWA-led research shows increasing flood risk is going to be what leads people to make changes to adapt to sea-level rise.

With cascading waterfalls and native bush tumbling down mountainous terrain, Fiordland is one of the most eye-catching parts of the country. But peer beneath the waves and you'll see that Fiordland's marine invertebrate and seaweed communities are every bit as remarkable and awe-inspiring.

A project is under way to determine whether Aotearoa New Zealand’s long defunct rock oyster industry can be revived.

After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes. Everything known and ichthyological that appears in our waters is referenced in the voluminous tome.

An interactive guide to the marine biota of the Fiordland (Te Moana o Atawhenua) Marine Area.

The Inner Hauraki Gulf/Tīkapa Moana ecosystem is facing proliferations of algae, de-oxygenation, reduced pH (acidification), reduced water clarity, and muddier sediments arising from historical and future land-derived contaminant inputs.

Developing innovative, non-invasive alternatives for surveying scallops and harvesting.

Susan Pepperell looks at how high-resolution forecasting is driving sharper decision making – from deep in the back country to the finish line of the America’s Cup.

NIWA Chief Executive John Morgan looks at the growing role data technology plays in environmental research.