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C0RI0LANUS

(1,337 posts)
Thu Sep 26, 2024, 02:55 AM Sep 26

New Ghost Shark Species with Unusually Long Nose Discovered in Deep Seas off New Zealand



A new species of ghost shark, with an unusually long nose and a whip-like tail, has been discovered in the inky depths of New Zealand waters.

Scientists at New Zealand’s National Institute for Water and Atmospherics (Niwa) initially believed the creature was part of an existing species found around the world, but further investigation revealed it was new, genetically distinct, species. The newly described Australasian narrow-nosed spookfish is only found in New Zealand and Australian waters.

Ghost sharks – also known as chimaeras and spookfish - are a group of cartilaginous fish closely related to sharks and rays. They have smooth skin, beak-like teeth, and feed off crustaceans such as shrimp and molluscs. They are sometimes referred to as the ocean’s butterflies for the way they glide through the water with their large pectoral fins.

The mysterious fish are typically found at great ocean depths – up to 2,600 metres - and little is known about their biology or the threats they face.

The new ghost shark was found in the Chathams Rise, roughly 750km east of New Zealand’s coast. It is distinctive for its very elongated snout that can make up half of its entire body length and has likely evolved to aid its hunt for prey. The chocolate-brown fish can grow up to a meter long, has large milky-coloured eyes, and a serrated dorsal fin to deter predators.

Roughly 55 species of ghost shark have been discovered globally, with about 12 of those found in New Zealand and South Pacific waters.

Source:

https://www.theguardian.com/world/2024/sep/25/ghost-shark-new-species-spookfish-discovered-new-zealand



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