Acoustics

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Scientists have discovered an extensive body of freshwater off the Canterbury coast between Timaru and Ashburton.
NIWA researchers are out on Lake Whakatipu for the next week mapping the lake floor for the first time.
The findings of the most complex underwater coastal survey of the seafloor undertaken in New Zealand, including previously undiscovered natural features and sunken boats, are to be formally presented to the Marlborough community tomorrow.

The critically endangered Māui dolphin is getting a helping hand from scientists this month who are beginning a year-long research project to listen in on them.

Latest videos

Marine Acoustician Dr Yoann Ladroit is leading research into using acoustics to find underwater gas bubble flares and then compare these to the chemical composition of water samples taken at the same locations.
NIWA marine geologist Arne Pallentin is looking for telltale gas bubble 'flares"—using a multi-beam echo sounder—that indicate new volcanic activity in the Calypso Vent Field.
Marine geologist - Dr Joshu Mountjoy - is mapping the seafloor landscape around Whakaari/White Island to understand how much sediment was dislodged in the eruption and where it has gone.
Marlborough Sounds Seabed Survey

Hidden under the surface of the Marlborough Sounds is a fascinating underwater world of shipwrecks and seabed ridges the size of sand dunes in the Sahara Desert.

Marine Acoustician Dr Yoann Ladroit is leading research into using acoustics to find underwater gas bubble flares and then compare these to the chemical composition of water samples taken at the same locations.
NIWA marine geologist Arne Pallentin is looking for telltale gas bubble 'flares"—using a multi-beam echo sounder—that indicate new volcanic activity in the Calypso Vent Field.
Marine geologist - Dr Joshu Mountjoy - is mapping the seafloor landscape around Whakaari/White Island to understand how much sediment was dislodged in the eruption and where it has gone.
During the TAN2007 voyage NIWA scientists head to the waters around Whakaari/White Island in the Bay of Plenty to survey changes to the seafloor since the volcanic eruption in December 2019. They will also survey the chemical composition of gases released by the hydrothermal vents on what is known as the Calypso vent field in the Bay of Plenty.
Fisheries researchers combine technologies to collect more data at a lower cost.
Nick Eton, electronics support, knows a thing or two about fixing things at sea!
Scientists have discovered an extensive body of freshwater off the Canterbury coast between Timaru and Ashburton.
NIWA researchers are out on Lake Whakatipu for the next week mapping the lake floor for the first time.
Marlborough Sounds Seabed Survey

Hidden under the surface of the Marlborough Sounds is a fascinating underwater world of shipwrecks and seabed ridges the size of sand dunes in the Sahara Desert.

The findings of the most complex underwater coastal survey of the seafloor undertaken in New Zealand, including previously undiscovered natural features and sunken boats, are to be formally presented to the Marlborough community tomorrow.
Marlborough Sounds Survey

NIWA in association with Discovery Marine Limited, carried out the hydrographic survey on behalf of the Marlborough District Council and Land Information New Zealand.

NIWA's research vessels Ikatere and Rukuwai spent more than nine months on the water using the latest multibeam echo sounder technology to gather more than 5 billion data points and reveal exactly what lies beneath the surface.

The critically endangered Māui dolphin is getting a helping hand from scientists this month who are beginning a year-long research project to listen in on them.

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

Unique research records rare whale species in Cook Strait

The sounds of whales and dolphins rarely seen in New Zealand waters have been recorded by NIWA scientist in a pioneering underwater sound project. In 2016 NIWA marine ecologist Dr Kim Goetz led a programme to deploy seven acoustic moorings in Cook Strait that recorded the sounds of marine mammals for six months until they were retrieved in December.

The sounds of whales and dolphins rarely seen in New Zealand waters have been recorded by a NIWA scientist in a pioneering underwater sound project.

Earthquake's unseen impact

NIWA scientists on board RV Ikatere have been surveying the coastal area around Kaikoura for the first time since November's magnitude 7.8 earthquake in 2016. Their work has revealed significant changes to the sea floor...

2017 joint meeting of the International Council for the Exploration of the Sea (ICES) - ICES Working Group on Fisheries Acoustics, Science and Technology (WGFAST), the ICES-FAO Working Group on Fishing Technology and Fish Behaviour (WGFTFB).

NIWA researchers have spent part of the last month keeping a close eye on the bottom of Lake Tekapo to find out what it looks like and what is going on below the lake bed.
NIWA scientists use the latest multibeam echo-sounding technology to generate new charts of the seafloor around Kapiti island.
Kapiti multibeam survey

NIWA scientists use the latest multibeam echo-sounding technology to generate new charts of the seafloor around Kapiti island. The new information enables better management of the marine reserve environment as well as much improved identification of gas seeps and other undersea features.

A team of marine geoscientists from New Zealand’s National Institute of Water and Atmospheric Research begins mapping the submarine landscape of Kapiti Island and Coast on Friday, 5 June.
A list of current voyage reports in downloadable formats.

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All staff working on this subject

Marine Mammal Acoustician
Assistant Regional Manager - Christchurch
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Fisheries Acoustics Scientist
Principal Scientist - Fisheries
Fisheries Acoustics Scientist
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Freshwater Ecologist
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Coastal Technician
Environmental Monitoring Technician
Principal Technician - Marine Geology
Regional Manager - Wellington
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