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By Danna Staaf | October 28th 2009 11:06 AM | 2 comments | Print | E-mail | Track Comments
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About Danna Staaf

Cephalopods have been rocking my world since I was in grade school. Now I'm a graduate student at Stanford University's Hopkins Marine Station, where I study the development and dispersal of Humboldt... Full Bio

The squid family Ommastrephidae includes my favorite Humboldt squid, along with a lot of other big-time commercial fishery species. How do they sustain the largest invertebrate fisheries in the world? Well, ommatrephids are large, muscular, and abundant, which means each squid you catch has a lot of meat, and there are a lot of squid to catch.

Humans are only the most recent predator to figure this out. Ommastrephid squid have been showing up prominently, and sometimes exclusively, in the diets of fish, sharks, dolphins, whales, and seabirds, as long as anyone's been looking.

Perhaps not surprisingly, they take exception to being every big predator's favorite snack, and have a variety of defenses at their disposal. Ink is the cephalopod classic, and they've got plenty of that. Counter-shading and color-changing camouflage also help them to avoid predators, even as they disguise themselves to fool their own prey.

Ommastrephids have one more trick up their sleeves, that no other cephalopod as far as I know has figured out.

They can fly.



Comments

Hey! Way to leave a person hanging, wanting more!

I can see three ways of flying. The first is ballistic, kinda like some fish. The get up speed under water, launch themselves into the air, and have no control after that. Perhaps they can modify their flight/trajectory with their flippers/wings, but do not truly fly. Third would be real flight -- being able to climb in height while in the air. Which of these do they do?

Where do these squid live, especially on the Atlantic coast?

Sorry to pepper you with questions, perhaps you can suggest a link?

Thanks,

Danna Staaf's picture
Hi Tom! I'm glad you enjoyed the cliffhanger. ;) I'm about to post about squid flight in a little more detail, and I'll address your questions then. I've got a couple of links too . . .

Also, there was supposed to be a picture at the end of that post, but I can't see it now. In case other people are having the same problem, here it is again (in closeup!):



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