Octopus living in groups and more stuff

DWhatley

Certified Ceph Head For Life
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,054
Location
Gainesville, GA
Octlantis, a new site with octopuses living in groups! See @pgs ' latest MetaZoan blog for an insight to the new paper, A second site occupied by Octopus tetricus at high densities, with notes on their ecology and behavior

Abstract
We report wild octopuses (Octopus tetricus) living at high density at a rock outcrop, the second such site known. O. tetricus are often observed as solitary individuals, with the species known to exist at similar densities and exhibiting complex social behaviors at only one site other than that described here. The present site was occupied by 10–15 octopuses on eight different days. We recorded frequent interactions, signaling, mating, mate defense, eviction of octopuses from dens, and attempts to exclude individuals from the site. These observations demonstrate that high-density occupation and complex social behaviors are not unique to the earlier described site, which had been affected to some extent by remains of human activity. Behavior at this second site confirms that complex social interactions also occur in association with natural substrate, and suggest that social interactions are more wide spread among octopuses than previously recognized.

 

tonmo

Titanites
Staff member
Webmaster
Joined
May 30, 2000
Messages
9,319
Location
Pennsylvania
^^this is getting a lot of play in the press, and for good reason.

It would seem, at least with this species, we've learned enough about the traits of these spots that they could be manufactured for the same purpose -- to allow a colony to thrive. It sets the stage for Jane Goodall-like studies!
 

DWhatley

Certified Ceph Head For Life
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,054
Location
Gainesville, GA
I have to admit I cringe a little every time I hear the camera bump the rock ;)
 

tonmo

Titanites
Staff member
Webmaster
Joined
May 30, 2000
Messages
9,319
Location
Pennsylvania

DWhatley

Certified Ceph Head For Life
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,054
Location
Gainesville, GA
Unfortunately, forum software removes the staring points for YouTube videos. I watched much of it and noted the octo spottings:
A pair of very small (possibly babies) at 2:30:xx and 2:39:xx
A dumbo at 7:37:xx
The best shots and almost 10 minutes of continuous video of 2 dumbos at 8:49:xx
 

tonmo

Titanites
Staff member
Webmaster
Joined
May 30, 2000
Messages
9,319
Location
Pennsylvania
Forgot about that. Thank you D!
 

tonmo

Titanites
Staff member
Webmaster
Joined
May 30, 2000
Messages
9,319
Location
Pennsylvania

DWhatley

Certified Ceph Head For Life
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,054
Location
Gainesville, GA
Here is another reporting (via @haggs). This group talked to @pgs for suggestions as to why this might be happening.

I remember something somewhat similar being reported with the extreme cold in 2010 with O. briareus which anecdotally fits the thought that there is something up with the water. I wonder if these octopuses are common to the area or if they migrated to temporarily warmer waters and were caught in a normal fall cooling.

Another article with thoughts by @ceph trying to analyse the bazaar behavior.
 
Last edited:

tonmo

Titanites
Staff member
Webmaster
Joined
May 30, 2000
Messages
9,319
Location
Pennsylvania

DWhatley

Certified Ceph Head For Life
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,054
Location
Gainesville, GA
More octopuses living in groups
Amazing Octopus - Most Intelligent Animal - Series Of Tests - Must Watch- Documentary HD 2017 (35 min 9 seconds) Capri


 
Last edited:

Members online

No members online now.

Forum statistics

Threads
19,283
Messages
201,437
Members
8,211
Latest member
cmvp0609

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak

About the Monty Awards
Top