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[Octopus]: Onn - O. briareus

DWhatley

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Urban Legends - We have several references to stories of animals escaping their tanks (this is NOT one) and returning with supper pilfered from a near by tank. Muctopus has started a thread to collect the stories and any solid evidence we find or observe and can document (See Midnight tank escapes- fact or fiction?). My own experiences with tank escapes does not indicate that they #1 find water and #2 return, however, species habit may play a part in the validation of the stories. One factor, may be the propensity of a species to return to their home dens (or to even have home dens).

Onn is often in his den at feeding time and wakes up to eat so he is on the left side of the tank when he accepts his meal. Generally, he will take the offering, slide it into his we with his suckers then reach to the feeding hand and investigate (interacting or looking for additional food is unclear but we suspect the former). The evening of the video we were late bringing supper and he was out on the glass. I played with him a little while his food was thawing and he eventually exited the play side (a signal to remove my hand) but remained out on the right side. The significance of the story is that after coming to take his dinner, he returns to his normal den, a possible + point to the possibility of returning to a home tank after collecting food from an outside source.

 

tonmo

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Great video! I really like your technique playing with the food... Realistic movements! Reminds me of playing with the kids... puppets, stuffed animals... funny!
 

DWhatley

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LOL, sorry Tony but that is not playing. In spite of some of the reports on octopus vision, this species seems to be very far sighted and cannot see anything close up. They can, however, detect food by movement and chemical receptors so the food wiggling is to produce a motion and a "smell" so he can locate it. Where it LOOKS like I am not giving it to him right away is also a misnomer. The food is held very loosely and if you look you will see that it is fully in his suckers but he is pulling on my fingers making it look like I am tugging on the food.
 

sedna

Larger Pacific Striped Octopus
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Abe always returns to his den to eat. Sometimes he goofs off a little before eating, dancing on the glass for whatever reason, but he never eats anywhere but in his den. I don't remember ever having an octopus that ate anywhere but in its den!
 

DWhatley

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He is aging (9 months + in the tank) and Neal and I can feel the loss of muscle tissue but his color is still bright white and peach (vs the dull grey they often acquire in senescence) and he is still eating, albeit often every other day in stead of everyday. He seems to have some difficulty with getting the meat out of crab claws and no longer fully disassembles them. One a recent occasion, we saw where he had drilled the claw, not his usual method but he still managed to clean out the meat.
 

DWhatley

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Thanks Rhodi, I'll tell him that :biggrin2:. I have often said this is arguably one of the most beautiful species but also say they are the dumb blondes of the octo world (having grown up blonde, I can say that where others are NOT allowed :wink:)

This is my very favorite Octopus briareus photo (so far. Sadly, it is not one of my own) and you would be pressed to find competition for glamour.
 

DWhatley

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Onn passed on Friday (2013/02/20 - 2014/01/03). He has been in languishing senescence for about 2 weeks and it had gotten to the point where looking in on him meant we were checking to see if he was still alive. He was never as robust as most of my other O.briareus so I was not terribly surprised that he entered senescence in less than a year in the tank. The breakfast/tank room seems lonely without an octopus.
 

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