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How to measure a live octopus

Nancy

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#1
We were discussing this over on Ceph Care - Jean thought you might know the answer, Steve....(or Kat)

Is the only accurate way to measure a live octopus by the distance between the eyes? If this is so, how do you take this measurement?

I can measure Ollie and get a different answer for arm length and mantle each time I try!

Thanks,

Nancy
 

Steve O'Shea

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#2
Hi Nancy. Probably the only reliable way to do it would be to measure the volume of water little Ollie displaced at any point in time; how to relate that back to 'body mass/weight' I don't know. They are such contortionists that none of arm length, mantle length or inter-ocular distance will give the same measurement twice.
Cheers
O
 

tonmo

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#3

Nancy

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#4
I don't think little Ollie would appreciate being measured by displacing water, so I'll just have to guess how big he is.

I had forgotten about the chart at the end of your excellent article - It seems that Ollie must be a moderate sized octopus now, and that will have to do :)

Nancy
 

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