Oceans

We don’t clearly understand the ecological effects of commerical toothfish fishing in the Ross Sea region. To improve our knowledge, we conducted a survey of demersal (bottom-dwelling) fish species on the Ross Sea slope - particularly grenadiers and icefish - during the 2015 Antarctic Ecosystems Voyage.

The yellow octopus is large and clearly abundant, with about one million being eaten a year by sea lions in the Auckland Islands alone

One of the ocean’s most elusive critters is about to meet its match as NIWA scientists voyage south hoping to film them in action – and bring a few samples home.

New Zealand’s answer to ocean acidification is a model of the ‘best team’ approach – when organisations pool talent and resources to find solutions to national, or global, issues.]

Everyone knows they’re out there, but how well do you know your sharks? NIWA looks at four of the most common sharks you’re likely to spot this summer.

Scientists are beginning a voyage to the middle of the marine food web today to find out more about one of the most complex networks on the planet.

The Southwestern Pacific OBIS Node site is a gateway to marine biodiversity data from Antarctica to as far north as Fiji.

An interactive guide to the common coastal crabs of New Zealand.

A successful electronic tagging project means scientists have made some important discoveries about spinetail devilrays.

A tiny community of New Zealand sea lions on the Otago Peninsula is helping scientists solve the mystery of why some populations are doing better than others.

Another colossal squid is under examination in Wellington, but this one could fit in the palm of your hand.

Ocean acidification conditions around the New Zealand coast are being measured to establish baseline conditions and to quantify future change.