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Polar giants

作者:石蘼    发布时间:2019-03-08 05:02:11    

MARINE invertebrates in polar regions dwarf tropical species thanks to a copious supply of oxygen. Gauthier Chapelle of the Royal Institute of Sciences in Brussels and Lloyd Peck of the British Antarctic Survey in Cambridge examined records of 1853 species of amphipod crustaceans from habitats around the world. They found that size is limited by oxygen availability, which is greater in chilly waters around the poles (Nature, vol 399, p 114). Global warming threatens these giant species, however, as it will reduce levels of dissolved oxygen. “The giants are going to go,

 

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