Shortest lived octopus species?

tonmo

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#2
Thanks for joining TONMO! As @OctoNation noted in his early reply on FB :smile:, factors such as water quality and enrichment can certainly have effects, so it's hard to know. If you are asking about tank-kept, in otherwise (or seemingly) healthy conditions, there are MANY examples of cephs that were kept for only 6 months to a year, but no particular species stand out as being less robust than others.

In situ, I believe one animal has been observed in the same location over a period of at least 5 years... someone may be able to correct me on that. But that's not your question :smile:

Shortest span is tough because there's so much we still don't know about these animals and tank-kept cephs have SO many variables.

Other thoughts??
 

DWhatley

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#3
I'm not sure that information is available. Generally speaking, the smaller the animal, the shorter the lifespan so you are very likely looking for a dwarf species, something the size of Octopus micropyrsus (mantle about an inch and arms about 3,5 inches). There are likely smaller in Japanese waters.
 

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