Emergency Crinoid help!!!!!
- Thread starter CuttleKid
- Start date
Bongo Shrimp
P. ceratophthalma
Not really sure what's going on here but if it is falling apart more than just like one or two arms than he is likely a goner.
Bongo Shrimp
P. ceratophthalma
Oh ok I think I know what you're talking about. Never heard of that happening but I doubt it's good. Sorry but I don't know if there is anything to do here.
Aquabacs
New member
If you have a chance, take a picture. If the entire gut popped or is removed and you see a white plate...I have some bad news for you. The crinoid will die in 45 or less days without a place for the food to go. I have had the gut rupture on a few of them before and the crinoid was able to temporarily function without out it. Now what is interesting is the function of the crinoid remains until it starves to death. Food will continue to travel down the arms but there is no place for it to go and the food will re-enter the water column. I have not been able to locate any papers that dicuss the regeneration anything other than arms, cirri, and pinnules on crinoids. If any one comes across actual documentation/papers on the subject, please let me know because I would love to read about it.
Thanks
Mike
Thanks
Mike
Aquabacs
New member
I am probably not the best person to give a suggestion on hospice care to inverts. You continue to feed it and observe how long it functions or donate it to you local municipality waste water system. Also test out all your water parameters to see if anything is off.
On a different note I will mention that I have seen this event happen (gut rupturing) when they are kept in a specific gravity below 1.025 and also within 72 hours of shipping when sent out in low volume of shipping water.
Mike
CuttleKid
New member
Opening an old thread here , but I have some great news as to my Crinoid. It Has a new gut/stomach. I don't know how it regrew because I saw the white plate that aquabacs was mentioning. I new it was only a matter of time before it passed, but I saw that it had it's arms open. Which was weird considering only one or two arms have been let out by him since the gut popped off. Now that I got home from vacation and I see that he has smaller gut than I remember but it is full.
I am so ecstatic right now!!!!!!!
I am so ecstatic right now!!!!!!!
Bongo Shrimp
P. ceratophthalma
I bet there was just enough of the stomach left for it to eat a little and regenerate. No wonder they are studying these things for human body regeneration.
TheInsomniac
New member
Hey there - I work on crinoids, so I have a few thoughts. That 'sac with a nipple' is called the viscera, or visceral mass. The nipple is either the mouth or the anus, depending on the taxon. One group of crinoids has the anus in the middle, most have their mouth in the middle. If the mouth is in the middle, the anus is off to the side. The gut is a roughly U-shaped feature that connects the two holes. The mouth will be at the meeting of the food grooves, and obviously the anus will not.
Crinoids have been known to lose the ENTIRE visceral mass and still survive. Predators will sometimes eat the viscera, because it is soft and fleshy, unlike most of the rest of the animals. Crinoids may also spontaneously eject the viscera when they are stressed. In both cases, regeneration can happen, though whether this happens often or in all species is unknown. It's mentioned in the literature, but I can't find a reference right now.
Cheers!
Last edited:
