Census of Marine Life ends

Gretchen Hofmann, Nancy Knowlton, Enric Sala

Published on October 18, 2010

photo: Larry Madin, WHOI

The Census of Marine Life ended on October 4 after 10 years of work by researchers from 80 nations, including Nancy Knowlton (1999), Enric Sala (2005), and Gretchen Hofmann (2009). The census brought estimates of the total number of marine species from 230,000 to 250,000. Discoveries range from 600-year-old worms to hairy "yeti crabs" living miles below the ocean surface.