Ecosystems

Latest news

A project is under way to determine whether Aotearoa New Zealand’s long defunct rock oyster industry can be revived.
A combination of artificial intelligence and scientific ingenuity looks set to be the next step forward in protecting Aotearoa New Zealand’s lakes and rivers from invasive aquatic weeds.
A joint NIWA and Department of Conservation (DOC) project is extending New Zealand’s ocean acidification monitoring network to include marine reserves.
Sadie Mills has come a long way from scaring the inhabitants of Scottish rock pools. Sarah Fraser explains.

Our work

The Whatawhata Integrated Catchment Management (ICM) Project is the longest continuously monitored before-after-control-impact (BACI) catchment-scale study in New Zealand.
Maniapoto Māori Trust Board and NIWA worked collaboratively during 2018-19 to support Ngāti Maniapoto whānau to reconnect with and participate in the assessment of their freshwater according to their values.
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.

Latest videos

Dive into the alien world of plankton in the Ross Sea

Plankton are the base of the oceans food web and are vital to our survival. But as our world changes will they be able to continue to play this essential role? Join us as we follow a group of NIWA scientists investigating various aspects of this question in the ocean around Antarctica.

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.

Dive into the alien world of plankton in the Ross Sea

Plankton are the base of the oceans food web and are vital to our survival. But as our world changes will they be able to continue to play this essential role? Join us as we follow a group of NIWA scientists investigating various aspects of this question in the ocean around Antarctica.

This project aims to increase our knowledge of aquatic ecosystems and their restoration, and apply this to degraded streams, rivers, lakes and estuaries.
A project is under way to determine whether Aotearoa New Zealand’s long defunct rock oyster industry can be revived.
A combination of artificial intelligence and scientific ingenuity looks set to be the next step forward in protecting Aotearoa New Zealand’s lakes and rivers from invasive aquatic weeds.
A joint NIWA and Department of Conservation (DOC) project is extending New Zealand’s ocean acidification monitoring network to include marine reserves.
Sadie Mills has come a long way from scaring the inhabitants of Scottish rock pools. Sarah Fraser explains.
Peter Sperlich needs a strong south-westerly and a cast iron stomach for his next scientific mission.
Maniapoto Māori Trust Board and NIWA worked collaboratively during 2018-19 to support Ngāti Maniapoto whānau to reconnect with and participate in the assessment of their freshwater according to their values.
NIWA researchers are heading out from Tasman early next week to survey an area thought to be home to important juvenile fish nurseries.
Five specialist NIWA divers were left ‘gasping’ during their recent plunge under the ice near Scott Base.
These are some recent publications related to the freshwater species ecology and management programme.

The abundance and diversity of life in our rivers, lakes and estuaries is the ultimate indicator of the health and wellbeing of our aquatic ecosystems. NIWA is helping to ensure that New Zealand’s unique and iconic freshwater species are healthy, abundant and thriving.

Constructed wetlands are a water quality restoration tool that can reduce levels of sediment, nutrients and microbes such as E. coli.
The Whatawhata Integrated Catchment Management (ICM) Project is the longest continuously monitored before-after-control-impact (BACI) catchment-scale study in New Zealand.
NIWA’s flagship research vessel Tangaroa will sail out of Wellington Harbour on Sunday for the first scientific voyage since the lockdown.
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.
Research shows how fish are being affected by microplastics.

Freshwater Update 81 brings you the latest information from our Freshwater & Estuaries Centre, with articles ranging from how NIWA scientists are solving the longfin eel migration mystery, how we're taking you diving with us at Fieldays, and a word from one of the editors of the new Lakes Restoration Handbook.

Christchurch’s Red Zone is to be the focal point of a scientific experiment involving street lights and insects over summer. 

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All staff working on this subject

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Principal Technician - Marine Ecology
Hydro-ecological Modeller
Principal Scientist - Ecosystem Modelling
Principal Scientist - Marine Ecology
Population Modeller
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Marine Biogeochemistry Technician
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Riparian and Wetland Scientist
Principal Scientist - Freshwater Ecology
Manager - Coasts and Oceans
Regional Manager - Christchurch
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Strategy Manager - Coasts & Estuaries
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Principal Scientist - Marine Ecology
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Marine Physics Modeller
Principal Scientist - Marine Ecology
Principal Scientist - Aquatic Pollution
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