[Coral-List] Octopus punches fishes

Steve Mussman sealab at earthlink.net
Tue Jan 5 23:08:24 UTC 2021



There were eight separate incidents that I viewed and it’s hard to tell because I’m not sure they all centered on cooperative hunting. I’m wondering if there aren’t eggs in the vicinity in some frames. Nonetheless, the octopus is establishing/maintaining dominance. Did you see that fish vacate that hideout as soon as the octopus approached? He wanted no part of her. Of course all this is just speculation on my part. I’ve observed and interacted with lots of octopuses, but Eduardo would have the inside track on this one’s behaviors. I’d love to hear everyone’s theory.

Steve

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On 1/5/21, 3:39 PM, Beki Thomson <beki.thomson at gmail.com> wrote:

Thanks for the link, Steve.

By cognitive, do you mean purposeful?

If so, what do you imagine the purpose might be? (Not that I don't have my own theories.)

Best,

Beki

❦

On Tue, Jan 5, 2021 at 11:22 AM Steve Mussman via Coral-List <coral-list at coral.aoml.noaa.gov (mailto:coral-list at coral.aoml.noaa.gov)> wrote:

More on octopuses as vertebrates.

https://loweringthebar.net/2015/05/octopus-honorary-vertebrate.html

p.s. I still maintain that the octopus’s punch was an example of cognitive behavior.

Regards,

Steve Mussman

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On 12/29/20, 10:10 AM, Eduardo Sampaio via Coral-List <coral-list at coral.aoml.noaa.gov (mailto:coral-list at coral.aoml.noaa.gov)> wrote:

Hi Francesca,

Sorry, I continued the conversation in private with Bill, Steve, and David,

and I guess I ended up not making it clear what I meant on the list server.

I copy it here:

About the vertebrate/octopus issue, what I meant is that I don't think that

octopuses should be looked at as a special case 'among animals'. We should

definitely take better care of all animals that we use for our benefits,

and raise the ethical cares of handling, be it livestock, aquaculture, or

any other industry!

All the best

On Tue, 29 Dec 2020 at 15:02, frahome at yahoo.com (mailto:frahome at yahoo.com) wrote:

> I guess you meant to say "they should NOT be treated as vertebrates are".

> Such kind of statements makes me wondering: are we actually all aware how

> we are treating vertebrates? Fish, pigs, chickens, cows and calfs, goats,

> sheep, lambs not to mention all sort of wildlife up to primates?

> Let's have a look a little beyond the plate sitting in front of us,

> especially during holiday season.

> The octopous are amazing, so they are all other animals (even if not all

> punch).

> Francesca

>

> On Tuesday, December 22, 2020, 09:04:40 PM GMT+1, Eduardo Sampaio via

> Coral-List wrote:

>

>

> Hi David,

>

> Glad you liked it!

> There is also a rising interest on (and feasibility of) octopus aquaculture

> which is bringing some ethical questions into light. Personally, I think

> they should be treated as vertebrates are.

> Regarding the train track, I'm actually not sure (researchers from Eilat

> that are part of this list will know better), but maybe it was related with

> the underwater 'habitat' that was active there some years ago under Hans

> Fricke? If someone can answer, I would love to know as well.

>

> On Tue, 22 Dec 2020 at 11:54, David Blakeway <

> fathom5marineresearch at gmail.com (mailto:fathom5marineresearch at gmail.com)> wrote:

>

> > Great! Thanks Eduardo. They are quite beautiful and mysterious.

> > It makes me a little depressed that our Western Australian government has

> > just approved a large scale wild catch fishery of the local O. tetricus

> > without, as far as I can see, any ethical considerations. The title of

> the

> > government report says it all:

> > Octopus resource of Western Australia harvest strategy 2018-2022.

> > What is the train-track looking thing in video 1?

> >

> >

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