Kōrero: Deep-sea creatures



The pearlside (Maurolicus muelleri) is a common fish on the Chatham Rise. Vulnerable to predators, they hide in the dark mesopelagic zone during daylight, then with many other organisms they move several hundred metres up to the euphotic layer, where food is more abundant. Echo sounder surveys from the research vessel Tangaroa discovered this phenomenon in the late 1990s. The sounders picked up a ‘false sea floor’, which was actually the echo from the swim bladders of the numerous pearlsides, moving towards the surface at night.

Te whakamahi i tēnei tūemi

Fathom Digital Graphics
Artwork by David Batson

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Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Paddy Ryan, 'Deep-sea creatures - The mesopelagic zone', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/artwork/5366/pearlside (accessed 22 June 2024)

He kōrero nā Paddy Ryan, i tāngia i te 12 Jun 2006