Ecosystems

Latest news

Scientists mapping the Hauraki Gulf seafloor have discovered huge colonies of tubeworms up to 1.5 metres high and collectively covering hundreds of metres providing vital habitats for plants and animals.
Microplastics are being fed to snapper, New Zealand’s most popular recreational fish species, at NIWA’s aquaculture research facility near Whangarei in a bid to establish some baseline data about how fish are being affected.
Christchurch’s Red Zone is to be the focal point of a scientific experiment involving street lights and insects over summer. 
NIWA scientists have found signs of recovery in the Kaikōura Canyon seabed, 10 months after powerful submarine landslides triggered by the November earthquake wiped out organisms living in and on the seabed.

Our work

NIWA hosted an IPBES workshop entitled “Visions for nature and nature’s contributions to people for the 21st century” held from 4-8 September 2017 in Auckland.
Seagrass beds form an important undersea habitat for small fish, seahorses and shellfish in New Zealand.
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.
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.

Latest videos

Taking the pulse of Antarctica’s ocean ecosystem
Niwa scientists have anchored an echosounder to the sea floor of Terra Nova Bay that could reveal the mystery of silverfish reproduction under the Antarctic ice.
Southern Blue Whiting Fishery

NIWA fisheries scientist Dr Stuart Hanchet describes the history and management of the southern blue whiting fishery, centred around New Zealand's subantarctic islands.

Kaikoura Canyon Seabed Life

The video represents a number of clips that have been spliced together to illustrate the abundant life associated with the muddy seabed sediments in Kaikoura Canyon at 1000m.

The different kinds of social survey methods are detailed below.

Glossary of social research terminology

Two pieces of social research were undertaken in the Waitao catchment.

A survey or interview is essentially a way to collect data from people.

A restoration project must 'fit' within a local community. In other words, it must align with local values, goals and vision for the future in order to be supported by the community.

An introduction to the use social research methods to aid aquatic restoration projects.

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.

The Continuous Plankton Recorder is a plankton sampling instrument designed to be towed from ships at normal cruising speeds. This allows it to be deployed opportunistically from commercial vessels, enabling sampling of plankton across whole oceans.

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.
Some of the useful methods, guidelines and modelling tools we've developed to assist with management of freshwaters.

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All staff working on this subject

Hydro-ecological Modeller
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Principal Scientist - Ecosystem Modelling
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Population Modeller
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Marine Biogeochemistry Technician
Marine Mammal Acoustician
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Riparian and Wetland Scientist
Assistant Regional Manager - Christchurch
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Principal Scientist - Marine Ecology
Principal Scientist - Fisheries
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Marine Physics Modeller
Principal Scientist - Marine Ecology
Fisheries Acoustics Scientist
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Marine Biologist (Biosecurity)
Principal Scientist - Aquatic Pollution
Principal Scientist - Fisheries
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Freshwater Ecologist
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Freshwater Fish Ecologist
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