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Pelagic octopus and giant squid bit identification (Ogasawara, Japan)


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#1 echeng

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Posted 23 October 2009 - 03:19 PM

While we were in Ogasawara, we photographed the carcasses of three large cephalopods spit up by sperm whales. The first was some sort of pelagic octopus, the second, a very large squid (arm segment floating in the water, body in the mouth of a sperm whale), and the third, a 351-cm giant squid arm, which was photographed and then recovered for research (they got this after I left -- have yet to see photos).

This is probably a stretch, but does anyone have any idea what these critters are? As a reminder, Ogasawara is where the footage of a live Architeuthis was taken back in 2006.

Pelagic octopus (Tony Wu surmises that it might be a (Haliphron atlanticus) seven-arm octopus):

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For scale, here's Tony floating above it:

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Squid arm segment. Coloration looks similar to the coloration of the arms of the Architeuthis in the Ogasawara video from 2006.

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Squid chunk in sperm whale mouth. We think it's the same squid, because they were in the same area:

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eric cheng
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#2 danielandrewclem

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Posted 23 October 2009 - 06:33 PM

I forwarded this post to Steve O'Shea, the renowned teuthologist. I imagine he'll be able to help.
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