TechNew elusive 'ghost shark' species discovered off New Zealand coast

New elusive 'ghost shark' species discovered off New Zealand coast

Shark, illustrative photo
Shark, illustrative photo
Images source: © Unsplash
Mateusz Tomczak

25 September 2024 06:03

The British station BBC has reported that New Zealand scientists have discovered a new species of "ghost shark" – a rare type of fish that is extremely difficult to detect.

Also known as "phantoms" or "chimeras," ghost sharks are closely related to sharks and rays. They do not have scales, and their skeletons are made entirely of cartilage. For the scientific community, they are a mystery primarily because of the environment they inhabit – usually at great depths, up to nearly 2,600 metres. The new species described by scientists from New Zealand's National Institute of Water and Atmospheric Research (NIWA) is no different – Harriota avia.

A new species of "ghost shark"

"Their habitat makes them hard to study and monitor, meaning we don't know a lot about their biology or threat status, but it makes discoveries like this even more exciting," said Dr. Brit Finucci in an interview with the BBC.

Scientists from the National Institute of Water and Atmospheric Research (NIWA) reported that they found a Harriota avia specimen east of the New Zealand coast in an area of the Pacific Ocean floor known as the Chatham Rise.

Initially, scientists thought that the observed fish belonged to a previously known species found worldwide. However, later studies revealed that it genetically differs from its cousins and lives exclusively in waters near Australia and New Zealand.

Harriota avia

The most distinctive feature of Harriota avia is its exceptionally long snout, which can make up half the length of the fish's body.

Dr. Brit Finucci admitted that the name she devised for the species also has personal significance for her.

"Avia means grandmother in Latin; I wanted to give this nod to her because she proudly supported me through my career as a scientist. Chimaeras are also rather ancient relatives — the grandmas and grandpas — of fish and I thought the name was well suited," explained the researcher.