Fish

Latest news

Some of the first research into how microplastics are affecting New Zealand fish species has revealed that microplastic fragments can find their way through the gut lining and into muscle tissue.
Sadie Mills has come a long way from scaring the inhabitants of Scottish rock pools. Sarah Fraser explains.
A lack of information about New Zealand oceanic shark populations is making it difficult to assess how well they are doing, says a NIWA researcher.
New Zealand’s native fish are doing their best to climb up ramps in a NIWA laboratory so scientists can learn how to better help them navigate our tricky waterways.

Our work

NIWA has a number of projects that are allowing us to better understand the interaction between snapper and their environment over their life cycle.
NIWA is looking for people who have had a long association with the Hauraki Gulf or Marlborough Sounds to help them with a research project on juvenile fish habitats.
NIWA is in its third year of a 5-year phased project on the deepwater line fishery in Tonga funded by the NZ Aid Programme’s Partnership for International Development Fund. The aim of the project is to deliver the improved governance, management, and economic and biological sustainability of the fishery focusing on deepwater snapper and bluenose in the Tonga EEZ.
The New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage.

Latest videos

The world's most mysterious fish

A video about The world's most mysterious fish. NIWA researchers are working with iwi to try to unlock the secrets of New Zealand tuna—freshwater eels. Every year tiny, glass eels wash in on the tide at river mouths along our coast. But where do they come from and how do they get there?

 

Science on the high seas

Sustainable fisheries depend on good scientific data about fish stocks. NIWA scientists head out into Cook Strait on Research Vessel Kaharoa to survey the hoki fishery and advise officials on catch rates.

Freshwater fish swim their all for science
The tiny inanga have been plucked from Waikato streams and held in a darkened laboratory for the last month, undertaking highly advanced testing to find the strongest, fittest and fastest fish.
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.

Scientific records of at least 104,000 samples of New Zealand’s freshwater fish, invertebrates, algae and other aquatic plants are now available at the click of a mouse.

A technique that collects chemical ‘fingerprints’ from the ear bones of fish to help scientists identify which estuaries they originated from could have important implications for the management of New Zealand’s local fisheries, said an article in the latest issue of Fisheries & Aquaculture Update, published by NIWA’s National Centre for Fisheries and Aquaculture.

If you hook yourself a tagged blue cod, NIWA would like to hear from you.

New tags that are attached by a tough nylon thread could finally solve the mystery of where New Zealand‘s freshwater eels spawn.

The same technique used to create the frighteningly life-like dinosaurs in the BBC documentary 'Walking with Dinosaurs' is now being used to help monitor New Zealand’s fish populations.

An agreement in principle has been reached for the sale of the Glenariffe Salmon Hatchery currently owned by NIWA, to Rakaia Salmon Limited. The new company wishes to raise salmon for the market by using the hatchery raceways. Initial concerns by environmental groups over potential capture of young salmon for the farm from the Rakaia River will not be an issue.

The abundance and sizes of fish within the Kapiti Marine Reserve have impressed research divers who have just completed a survey to assess how well the marine environment has recovered since it was protected in 1992.

French researchers are now, or soon to be, closely involved in a range of New Zealand environmental and marine studies taking in such diverse activities as migratory problems of fish including eels, the foraging habits of royal albatross in southern oceans, and the potential tsunami impact of undersea landslides.

Crayfish living along the Abel Tasman National Park coastline will be introduced to the silicon chip age later this month.

New findings by scientists at the National Institute of Water and Atmospheric Research (NIWA) have revealed that the death of kina, starfish, and possibly other fishes, in late January and early February off the Kaikoura coast appears to be linked to toxic algae.

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All staff working on this subject

Hydro-ecological Modeller
Principal Scientist - Fisheries
Population Modeller
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Principal Scientist - Fisheries Modeller
Assistant Regional Manager - Christchurch
Fisheries Acoustics Scientist
Fisheries Data Manager
Fisheries Scientist
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Principal Technician - Fisheries
Freshwater Fish Ecologist
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Marine Ecology Technician
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Principal Technician - Fisheries
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Environmental Scientist
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