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.

Inputs into stock assessment

Scientists from around the globe are meeting in Nelson next week to discuss the latest advances in fisheries technology.

Boaties in Tasman and Golden Bays are likely to notice a larger than usual vessel working close to shore over the next few days.

Effects of climate change on fish are being studied at NIWA's Northland Marine Research Centre.
A voyage to the Kermadec Islands has resulted in the discovery of many species either new to science or not previously found in the area.
Exploring the deepsea

Despite many centuries of maritime exploration, only a fraction of our planet's seafloor has been observed. NIWA Deepsea Scientist Di Tracey tells us what it feels like to probe deep beneath the waves to see what's living on the ocean floor.

NIWA scientists are asking for help from people who have had a long association with East Northland, Hauraki Gulf or Marlborough Sounds.
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.
Over the last few days the “dive team” have been recording corals, fishes, urchins and other invertebrates from the shallow waters (0-30m) surrounding Raoul Island to complement the biodiversity records from the deeper ocean collected by the other scientists onboard.
Mesopelagic trawl from the RV Tangaroa October 2016 Kermadec Voyage
Using a very wide net to complete a 960m deep mesopelagic trawl near the Kermadec Islands has brought up a large number and diverse range of deep water species.
The Quota Management System, which some say saved New Zealand fisheries, is 30 years old today. The system is founded on science that studies fish biology, abundance and distribution, and estimates how many can be caught and still keep the population healthy.
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

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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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