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Fish 'chock-full' of antifreeze protein found in iceberg habitats off Greenland

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Posted (IP: Staff) ·

New research based on an expedition to the icy waters off Greenland reveals soaring levels of antifreeze proteins in a species of tiny snailfish, underlying the importance of this unique adaptation to life in sub-zero temperatures. The study, led by scientists at the American Museum of Natural History and the City University of New York (CUNY), and published today in the journal Evolutionary Bioinformatics, also warns that warming oceanic temperatures in the Arctic could pose a threat to these highly specialized fishes.

Gruber and co-author John Sparks, a curator in the museum's Department of Ichthyology, decided to investigate the antifreeze proteins of the juvenile variegated snailfish, Liparis gibbus, after encountering a separate exceptional ability of the tiny fish—biofluorescence.





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