Oceans

A tsunami reporting station situated in the Pacific Ocean that is currently off line is to be upgraded in a joint operation involving New Zealand and United States government agencies.

A decade of scientific research into how ocean acidification is affecting New Zealand waters has led to far greater understanding of the vulnerability of our marine ecosystems, according to a newly published review.

It is well known that earthquakes can trigger tsunami but they can also be caused by landslides – with devastating effects.

Tropical cyclones forming in the south-west Pacific are becoming less frequent but those that do form are likely to be more severe.

A leopard seal pup born off St Kilda beach, Dunedin, on Tuesday has been found to have only had 10 per cent of normal lung capacity.

A leopard seal has spent so much time in New Zealand waters she has prompted a NIWA scientist to challenge conventional thinking about the species.

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

Māui dolphins, a subspecies of Hector’s dolphins, are listed as nationally critical in New Zealand with a population estimate between 57 and 75 dolphins over one year old.

Pilot whale (Globicephala sp.) calls detected by acoustic recorder stationed in Cook Strait, New Zealand from December 2016 to January 2017.

Cuvier’s beaked whale (Ziphius cavirostris) calls detected by acoustic recorder stationed in Cook Strait, New Zealand from December 2016 to January 2017.