Fish

Latest news

A new study has identified seven freshwater species native to Aotearoa-New Zealand that will likely be highly or very highly vulnerable to climate change.
NIWA scientists have made a breakthrough that may underpin expansion of the high-value New Zealand salmon farming industry.
NIWA researchers are heading out from Tasman early next week to survey an area thought to be home to important juvenile fish nurseries.
This award-winning kingfish sashimi dish is creating quite a splash – but it doesn’t come from the sea. We look at NIWA’s latest aquaculture success story and the new opportunities it’s on path to deliver.

Our work

Māori communities around the country note that the abundance, size and/or distribution of tuna, kōura and kāeo/kākahi is declining and that current populations aren’t sufficient to meet their needs.
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 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.
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.

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.

Te Papa has released a publication containing information, including pictures, distribution maps for all 1,262 known fish species found in our waters.
CASAL2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.
Identifying creepy crawlies in your local stream just got a whole lot easier and faster, thanks to a new 3D identification system developed by a NIWA researcher.
NIWA researchers have produced a series of calendars to inform people when New Zealand's native freshwater and sport fish are migrating and spawning.
NIWA's publication "Freshwater Fish Spawning and Migration Periods" is designed to help people working near freshwater to minimise effects of their work on freshwater fish species.
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.
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.
Now back on dry land, Voyage Leader Richard O'Driscoll reflects on the final days of RV Tangaroa's 2015 Antarctica expedition.
A NIWA study has shown that environmental factors influence the level of mercury in fish and other organisms in lakes in New Zealand's North Island geothermal area
Next week, NIWA scientists will showcase the latest version of the National Freshwater Fish Database at an international conference in Hamilton.

Scientists are starting to get a better picture of how recreational fisheries change over time, thanks to a few web cameras and a bit of help from the public.

A Different Kettle of Fish
Take a look inside NIWA's facilities - the species, the science and the future of our aquaculture industry.
NIWA has a number of projects that are allowing us to better understand the interaction between snapper and their environment over their life cycle.

Paua is a New Zealand summer delicacy.

When someone says "paua fritter" they are usually referring to something made from blackfoot paua. The blackfoot paua (Haliotis iris) species is endemic to New Zealand and found throughout the country. It is most abundant on shallow reefs.

The mako shark is fast and fascinating. The shortfin mako, Isurus oxyrinchus, has been recorded swimming at speeds of about 100km/h. It's the fastest of the world's shark species. Mako sharks are found in waters right around New Zealand. Only occasionally are they found close inshore.

Recently, Australian and New Caledonian shark scientists downloaded data from acoustic receivers deployed off the east coast of Australia and in the Coral Sea and discovered that great white sharks acoustically tagged in New Zealand had been visiting.

NIWA scientists trawled deep – deeper than ever before – down to 2,730 metres, and found new-to-science fish close to the deep ocean seafloor during their latest research voyage.

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All staff working on this subject

Hydro-ecological Modeller
Principal Scientist - Fisheries
Population Modeller
Principal Scientist - Fisheries
Assistant Regional Manager - Christchurch
Fisheries Acoustics Scientist
Fisheries Data Manager
Principal Scientist - Fisheries
Principal Scientist - Fisheries
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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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