baby clams?

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,995
I could not find any tiny clams but I contacted my normal shrimp supplier and asked about any small bi-valves they might have. They sent me a nice cluster of live mussles and some hermits with my order (I had given permission to add to my charge card for these, no freebees). So far the mussles are doing well in with my fiddler crabs (I chose this tank thinking the crabs would eat any dead ones). Octane has eaten some that I opened for her, investigated but not eaten a cluster of closed ones (the stars opened and ate those) but ignored the third batch I opened and put in the tank (the stars had a ball with them though).

If mussles are of interest, they are not on the website but you can call or email Phyllis (office manager) or Mike (owner) to see if they have any in stock and what the cost of purchase and shipping will set you back ;>)

http://www.livebrineshrimp.com/
 

Nancy

Titanites
Staff member
Moderator
Joined
Nov 20, 2002
Messages
5,800
I've read that octopuses have to teach themselves how to drill shells. I wonder if they won't try if they have other food.

How do you keep your fiddlers, D?

Nancy
 
Joined
Sep 16, 2005
Messages
4,935
I found an interesting article on bivalve predation by the Giant Pacific Octopus. Of course, I only have access to the abstract...

The packaging problem: Bivalve prey selection and prey entry techniques of the octopus Enteroctopus dofleini.

Anderson, Roland C.; Mather, Jennifer A. , 2007. Journal of Comparative Psychology. Vol 121(3) 300-305.

Abstract
Many predators face a complex step of prey preparation before consumption. Octopuses faced with bivalve prey use several techniques to penetrate the shells to gain access to the meat inside. When given prey of mussels Mytilus trossulus, Manila clams Venerupis philippinarum, and littleneck clams Protothaca staminea, Enteroctopus dofleini solved the problem differently. They pulled apart V. philippinarum and M. trossulus, which had the thinnest shells and the least pulling resistance. P. staminea were eaten after the shells had been chipped or had been penetrated by drilling, presumably to inject a toxin. Likely because of these differences, octopuses consumed more V. philippinarum and M. trossulus than P. staminea when the mollusks were given to them either 1 species at a time or all together. However, when the shells were separated and the penetration problem removed, the octopuses predominantly chose P. staminea and nearly ignored M. trossulus. When V. philippinarum were wired shut, octopuses switched techniques. These results emphasize that octopuses can learn on the basis of nonvisual information and monitor their body position to carry out feeding actions.
 

SandV

Wonderpus
Registered
Joined
Oct 16, 2007
Messages
220
Rigby doesn't like mussels either... i just buy clams at the grocery store, they are live when the shell is still tight, they actually said they can't sell them if they aren't alive still... the ones I get are Mannilla Clams (not sure on the spelling)
 

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,995
CG,
Thanks for the find! We have been looking for alternates for Octane and she is only mildly interested in the mussles so we will give the clams a go if the *&^# paypal system will finish my order!
 

Nancy

Titanites
Staff member
Moderator
Joined
Nov 20, 2002
Messages
5,800
How large are the clams and how does Rigby eat them?

I'm trying to find out more about how octopuses eat bivalves and which ones they'll actually eat. Maybe it depends on the individual octopus, too.

Nancy
 

Latest Posts


Top