Scientists plumb depths to ask how many fish in the sea

(The Guardian): It has been the biggest and most comprehensive attempt ever to answer that age-old question – how many fish are there in the sea? Published today, a 10-year study of the diversity, distribution and abundance of life in the world’s oceans attempts just that. The Census of Marine Life, which hopes to paint a baseline of marine life, estimates there are more than 230,000 species in our oceans. A team of more than 360 scientists around the world have spent the past decade surveying 25 regions, from the Antarctic through the temperate and tropical seas to the Arctic to count the different types of plants and animals.

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