Do bi-valves get up and move on there own?

[shogun1964]

I had a bi-valve hitchhiker on a piece of live rock for about 6 months now. This morning I woke up and it was gone and nowhere to be found. My question is do they move on there own?

 

[malacoda]

Yep, many bivalves can move. For example, all a clam or mussel has to do is relax its foot (clam) or beard (mussel) and it can move to whatever new location makes it happy.

 

[saltyfilmfolks]

Yep. Clams walk.

 

[Donovan Joannes]

Some has the ability to climb rocks as well.

 

[BrettMallette]

If you have a sandbed youd be surprised how much they can move even the big ones. Bare bottom limits movement somewhat but only if bottom isnt coated in coralline then they can grip it nice and easy and cruise around to wherever they want to go.

 

[saltyfilmfolks]

If you have a sandbed youd be surprised how much they can move even the big ones. Bare bottom limits movement somewhat but only if bottom isnt coated in coralline then they can grip it nice and easy and cruise around to wherever they want to go.

One of mine climbed into a birdsnest.

 

[BrettMallette]

One of mine climbed into a birdsnest.

I have 3 or 4 in my birdnest and they seem to group up on my big clam every once and a while. It has 2 resident clams an oyster and a mystery bivalve that seem to attract the others here and there.

 

[saltyfilmfolks]

I have 3 or 4 in my birdnest and they seem to group up on my big clam every once and a while. It has 2 resident clams an oyster and a mystery bivalve that seem to attract the others here and there.

Weird awsome little critters aren't they? I have a bunch !

 

[Donovan Joannes]

Some hitchhikers are not bi-valve but they belong to clam family. I have at least four clams without the valves and these are excellent rocks climber with sticky foot.

 

[saltyfilmfolks]

My two new ones. I guess they like each other.