Giant Pacific Octopus Census

27 Feb 2015 by Matthew Kwan, No Comments »

In Puget Sound, divers have conducted a census of the giant octopi population off the Northwest coast to check on the health of the octopi. From the waters of Seattle to Canada, divers searched for the giant Pacific octopus last month around 11 sites in Puget Sound. The census is taken annually to show how the population of the octopi changes.

The divers were from the Seattle Aquarium and the aquarium told the divers to note specific things. Things included how many octopi were seen, the depth of the divers’ finding and the type of hiding spot.

The census this year came to be a total of 28 octopi found, where 11 less were found last year. This type of octopus can weigh up to 150 pounds (70 kilograms), and can span up to 20 feet (6 meters.)

This type of octopus is the largest octopus in the world, and is found in many parts of the Pacific Ocean including the waters off of Seattle, Washington. These octopi consume scallops, crabs and shrimp which they hunt at night. The octopi stay hidden in their dens during the day, therefore the divers need to search the waters in the dark. The divers use flashlights to guide themselves through the darkness and look for the octopi.

In this still Oct. 5, 2014 image taken from video provided

Photo by: Andrea Petersen

 

Sources:

http://www.azcentral.com/story/news/weird/2015/02/05/us-divers-conduct-underwater-octopus-census/22936837/

http://www.techtimes.com/articles/31413/20150206/scientists-conduct-octopus-census.htm

 

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