Oceans

Recording old oceans centre tag.

Latest news

A chance discovery off the Gisborne coast five years ago is prompting a NIWA scientist to find out more about the link between a field of methane seeps bubbling out of the sea floor and submarine landslides.

The on-going rise of atmospheric carbon dioxide (CO2) that is fuelling climate change is also driving significant changes in the waters off our coasts.

The most detailed seafloor mapping of a coastal region off New Zealand has been completed in Marlborough.
A decade of scientific research into how ocean acidification is affecting New Zealand waters has led to far greater understanding of the vulnerability of our marine ecosystems, according to a newly published review.

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.
Ocean acidification conditions around the New Zealand coast are being measured to establish baseline conditions and to quantify future change.
Our oceans are expected to become more acidic as carbon dioxide concentrations rise. This will likely have impacts on the plankton, which play a major role in ocean ecosystems and processes.
Where and when do white sharks occur in New Zealand waters, and how can fisheries bycatch be reduced?

Latest videos

Ocean Acidification
This video has been produced to highlight ocean acidification as a potential issue affecting the NZ shellfish aquaculture industry
Echo, Echo: Scanning the Seafloor on R.V. Tangaroa

NIWA ocean geologist Dr Joshu Mountjoy explains how the R.V. Tangaroa's multibeam system is used for bathymetric (seabed) mapping, and some of the benefits which come out of this mapping.

Seabed Frontier: A Brief History of Bathymetry

NIWA marine geologist John Mitchell gives a brief history of bathymetric (seabed) charting, and how it's been carried out over the last few hundred years. (01:18) 

Big Fish, Calm Sea - White Shark Tagging off Stewart Island

Tagging White Sharks off Stewart Island, NZ Scientists from DOC, NIWA, and the University of Auckland are building a unique picture of New Zealand's great white shark population.

We manufacture items such as cables and circuit boards through to subassemblies for both standard and specialized systems.

We develop custom environmental monitoring and irrigation flow-control solutions.

We design instruments and systems of instruments. We have full mechanical and electronic CAD capability.

Rob Bell's analysis of the tsunami signature.
Contacts for NIWA Invertebrate Collection staff.

Instrument Systems offers a number of services, including: design, development, manufacture, supply, installation, service and support, calibration, evaluation, hire, training and service contracts.

A cost-effective water level recorder. Comprises a water surface float-driven shaft encoder and internal data logger with rainfall input. Connects directly to compatible communications devices.

When deployed underwater, this self-contained instrument records and analyses water waves. It can trigger other instruments and send alarms via a communications link.

NIWA’s 28-metre research vessel Kaharoa will spend Christmas at sea. Kaharoa will be in the midst of the Indian Ocean, on an epic journey deploying over 100 ocean-profiling ‘Argo’ floats.

Australian Antarctic Division seal biologists were the first to photograph several large icebergs off the coasts of Macquarie Island. Since the beginning of November these icebergs have been pushed north by winds and ocean currents to be within 250 km of New Zealand.

Icebergs approach New Zealand’s sub-Antarctic islands every few years.

NZ scientists endured the dark polar winter to find what drives the dramatic growth of sea ice

Useful information and resources on New Zealand's marine flora and invertebrate fauna.
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.

Multibeam echo sounders emit a fan of sound beams to the seafloor to scan a wide swath of the seabed in great detail. 

Our oceans are expected to become more acidic as carbon dioxide concentrations rise. This will likely have impacts on the plankton, which play a major role in ocean ecosystems and processes.
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.
Understanding the complexity of tidal resources in New Zealand’s coastal waters and examining how extracting tidal energy would influence and be influenced by this variability.
Satellite images can be used to measure phytoplankton biomass in the ocean around New Zealand in order to understand ocean ecosystems, fish populations and greenhouse gas absorbtion.
A survey of valuable ore deposits and ecosystems along the volcanic Kermadec Ridge north of New Zealand, designed to inform both potential development and management of seabed resources in the area.
In 2004, scientists added iron salts to surface Sub-Antarctic waters east of New Zealand's South Island to determine whether this stimulated phytoplankton growth, and to examine the exchange of carbon dioxide (CO2) and trace gases between the atmosphere and ocean.
This research aims to provide better predictions of changes in the ocean and climate system, particularly the way in which the ocean around New Zealand regulates greenhouse gases and clouds.

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All staff working on this subject

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Principal Scientist - Marine Geology
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Marine Biogeochemistry Technician
Marine Mammal Acoustician
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Coastal and Estuarine Physical Processes Scientist
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Fisheries Acoustics Scientist
Principal Scientist - Marine Geology
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Regional Ocean Modelling System (ROMS) Numerical Modeller
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Marine Sedimentologist
General Manager - Operations
Principal Scientist - Fisheries
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Marine Invertebrate Systematist
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Marine Physics Modeller
Principal Scientist - Marine Ecology
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Physical Oceanographer
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Marine Biologist (Biosecurity)
Principal Scientist - Fisheries
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Freshwater Fish Ecologist
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Principal Technician - Marine Geology
Algal Ecologist
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