Marine Invertebrates

Latest news

A worm that feeds on bacteria and has no eyes is one of the standout stars of almost 600 unfamiliar and potentially new ocean species identified at NIWA in the past year.
NIWA’s Marine Invertebrate Collection has welcomed two extremely rare octopus that have only just been provisionally identified.

Pollen from New Zealand pine forests has been shown to travel more than 1500km through wind and ocean currents, and sink thousands of metres into the ocean to reach some of the world’s deepest ecosystems.

A voyage to the Kermadec Islands has resulted in the discovery of many species either new to science or not previously found in the area.

Our work

NIWA is conducting a five–year study to map changes in the distribution of plankton species in surface waters between New Zealand and the Ross Sea.

Latest videos

Ocean acidification - what is it?

The on-going rise of carbon dioxide (CO2) in the atmosphere is not only changing our climate—it is also changing our oceans. Take a look at the work of the NIWA-led CARIM project into what these changes may mean for the delicate balance of marine life.

NIWA Blake Ambassadors Vlog 3: its bongo time! TAN1810
18 Nov 2018. NIWA Blake Ambassador—Lana Young—explains how bongo nets are deployed to collect plankton around the clock on board the RV Tangaroa.
NIWA Blake Ambassadors Vlog 3: Fishing for water!

7 November 2018. In this Vlog 2 update live from Tangaroa, NIWA Blake Ambassador Siobhan O’Connor shares a typical shift, starting at 2.30am, collecting water samples from different ocean depths which are carefully analysed in the lab. 

In the past half century, mangroves have increased in extent in estuaries and tidal creeks throughout the upper half of the North Island.

The decorator crabs, or camouflaged crabs, are very different creatures from the paddle crab. They’re slow movers that rely on disguise to evade predators, decorating their shells with whatever flotsam and jetsam comes to claw.

Ever had a crab nip your toe at the beach? The culprit is most likely the paddle crab.

Estuarine restoration research is relatively new in New Zealand and has been largely instigated by community groups that have become increasingly concerned with the decline of plant and animal species.

Specimens can be loaned to universities, colleges, museums and other research or education institutions for the use of resident research staff.

Welcome to the newsletter for NIWA's National Centre for Aquaculture & Biotechnology. Here we'll bring you news of research discoveries, new initiatives, courses, and events in these exciting and commercially-orientated fields.

Ocean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere.

First we must be able to recognise if a species is new to science. There are several steps to the process.

NIWA is conducting a five–year study to map changes in the distribution of plankton species in surface waters between New Zealand and the Ross Sea.

Inshore and onshore biodiversity sampling activity is about to commence in the Bay of Islands as the Bay of Islands Ocean Survey 20/20 project enters its next phase.

Census of Marine Life-affiliated scientists, plumbing the secrets of a vast underwater mountain range south of New Zealand, captured the first images of a novel “Brittlestar City” that colonized against daunting odds the peak of a seamount – an underwater summit taller than the world’s tallest building.

These endemic freshwater crustaceans are truly living fossils that originated in Gondwana at least 325 million years ago and have changed little morphologically since that time.

The giant squid (Architeuthis), the world’s largest invertebrate, has never been seen alive – until now. A new Discovery Channel special joins an international expedition team in the waters off New Zealand as they succeed in capturing living juvenile specimens for the first time. The juveniles were found in the larval stage, ranging in size from 9 to 13 millimetres. The expedition, fully funded by the Discovery Channel, was undertaken in cooperation with NIWA and led by marine biologist Dr Steve O’Shea.

Recent underwater surveys of the Tonga Island Marine Reserve are revealing the benefits of marine protection.

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All staff working on this subject

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Principal Scientist - Marine Ecology
Senior Regional Manager - Wellington
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Marine Invertebrate Systematist
Principal Scientist - Marine Ecology
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Marine Ecology Technician
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Marine Ecology Technician
Principal Technician - Marine Biology
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Marine Biologist
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