Yes I was looking back at the pictures and it does look like that is part of the foot - almost looks like he is trying to push those pieces of rock that are blocking the rear of the opening for the foot out of the way to attach. I wonder how those pieces of rock got there. The clam was sold as aqua-cultured ('cultured' to be exact which I am taking to mean aqua-cultured). I suppose at some point in it's long life it was raised on rock and the rock was cut away to free it? If you look at the picture of the base where I am holding it it appears that those are porous rock pieces and do not seem to be where the clam has tried to overgrow the byssal opening. The base is quite flat there so maybe it was cut with a band saw? I am not going to even try to remove them however.
You're right - I can see through the gap underneath to inspect - that's part of the reason I put him there although I now think I should have mounted him more horizontal to provide a more even spread of light to the mantle. Oh well, maybe he will adjust that on his own? I can also see that the softer exposed (brown) part of the (byssal foot?) which appears to be made of many threads is now extended out and is touching the rockwork so I believe he is starting to attach. Mantle was also further extended today and the shell was slightly more open so I could just see the inhalant syphon for the first time. I will of course be looking for evidence of new growth over the coming weeks.
I will not move him if I can help it. Interesting news about bristleworms - it is mentioned in Prof. Fatherree's book that they can predate on clams but I suppose there may be certain species of worms that 'specialise'.
The clam is over 5 inches, maybe 6" top to tail - it probably weighs about half a kilo - about a pound. I wish I had measured it when it was out of the tank now. I'm very keen not to interfere so I won't. Maybe I'll measure it in the tank once he is more settled.
Thanks again!
You're right - I can see through the gap underneath to inspect - that's part of the reason I put him there although I now think I should have mounted him more horizontal to provide a more even spread of light to the mantle. Oh well, maybe he will adjust that on his own? I can also see that the softer exposed (brown) part of the (byssal foot?) which appears to be made of many threads is now extended out and is touching the rockwork so I believe he is starting to attach. Mantle was also further extended today and the shell was slightly more open so I could just see the inhalant syphon for the first time. I will of course be looking for evidence of new growth over the coming weeks.
I will not move him if I can help it. Interesting news about bristleworms - it is mentioned in Prof. Fatherree's book that they can predate on clams but I suppose there may be certain species of worms that 'specialise'.
The clam is over 5 inches, maybe 6" top to tail - it probably weighs about half a kilo - about a pound. I wish I had measured it when it was out of the tank now. I'm very keen not to interfere so I won't. Maybe I'll measure it in the tank once he is more settled.
Thanks again!




