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Long-finned Squid attack sequence

Monkeywrench

Cuttlefish
Registered
Joined
Jan 22, 2005
Messages
15
#1
I just found this randomly. Thought I'd share it. My apologies if this is link is ancient. From the page:

Photographs of selected frames from a high-speed ciné sequence of the capture of prey (a penaeid shrimp) with the tentacles by Loligo pealei. The elapsed time (ms) from the start of the sequence is indicated in the upper left-hand corner of each frame and corresponds to the time indicated by the abscissa of the plots in Fig. 2. The grid spacing in the background is 0.02m.




 

Phil

TONMO Supporter
Supporter
Joined
Nov 19, 2002
Messages
3,034
#2
Thanks Monkeywrench, that's a very interesting set of photos. I've never seen this set before though have stumbled across a similar cuttlefish set. The absolute symmetry maintained in the sequence is quite astounding.
 

Squidman

Vampyroteuthis
Registered
Joined
Dec 24, 2004
Messages
296
#3
Wow!

Phil said:
The absolute symmetry maintained in the sequence is quite astounding.
Astounding, indeed. Coordinating those tentacles with such unimaginable symmetry and speed must be incredible to witness in person.

Not to mention coordinating the chromatophores, the suckers, the fin movements, and the possible photophores!
 

Steve O'Shea

TONMO Supporter
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Nov 19, 2002
Messages
4,668
#4
It is a stunning set of pics, but beware, not all squid use their tentacles like this (propel them out), and even if they do this on occasion, they don't always do it. There's another series of published pics, and a nice paper to accompany it, looking at ommastrephid prey-capture techniques. I'll get pics online shortly.
 

Melissa

Larger Pacific Striped Octopus
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Joined
Apr 3, 2003
Messages
1,137
#6
The squid moves like that tool for getting the last olive out of the jar!

I'm looking forward to seeing the other series with less symmetrical movement.

Melissa
 

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