An icefish colony discovered in Antarctica is world's largest fish breeding ground

A breeding colony of 60 million fish has been discovered in Antarctica's ice-covered Weddell Sea -- a unique and previously unknown ecosystem that covers an area the size of Malta. The fascinating find shows how little is known about the ocean depths. The vast colony, believed to be the world's largest, is home to the remarkable icefish (Neopagetopsis ionah), which has a see-through skull and transparent blood. Icefish are the only vertebrates to have no red blood cells.

To survive at such low temperatures, it has evolved an anti-freeze protein in its transparent blood that stops ice crystals from growing. The breeding colony was discovered in February 2021 by the German polar research vessel Polarstern, which was surveying the seabed about half a kilometer below the ship. It used a car-sized camera system attached to the stern of the ship that transmits pictures up to the deck as it's being towed…

https://edition.cnn.com/2022/01/13/world/icefish-colony-discovery-scn/index.html


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