What are THESE??? Anemone Eggs?

Thanks so much Orion. I wonder why this is not observed more often by other people that keep E. quadricolor. I could hardly find any information or other instances of this.
 
Not much has changed today. She (I guess I can safely call it that now...lol) is a little deflated but not bad. Someone or something may have just messed with her a bit. Seems to be about the same amount of eggs as yesterday.


Anemone12 said:
Well it's very rare for this to happen in captivity.
Click to expand...
Then I guess I am doing something right and should feel lucky...lol
 
There is discrepancy of these two source regarding H. quadricolor sexual reproduction. Dr. Scott reports of broadcast spawn for this species while Charles Delbeek reports internal fertilization and released of live larvae.
It is possible but highly unlikey that they are both correct.
 
Well, today it looks like there are more eggs in more tentacles. Before they were in just one area toward the top of the anemone and today it there are eggs in random tentacles in other areas.
 
Not much has changed. Last night something ticked her off and she moved further between the rock she was on and the glass. I rotated the rock a bit because I was curious if what was going on and I think that ticked her off more. I know, I know...just leave her alone. Curiosity killed the cat. I'll try to snap an update pic when she opens back up all the way in a couple hours.
 
OrionN said:
There is discrepancy of these two source regarding H. quadricolor sexual reproduction. Dr. Scott reports of broadcast spawn for this species while Charles Delbeek reports internal fertilization and released of live larvae.
It is possible but highly unlikey that they are both correct.
Click to expand...

The Delbeek account seems to support both situations. At first he says he found eggs/embryos in the water column that had come from the tentacle tips. Then a couple days later the egg/embryos in the tentacles started rotating.

The Scott paper says that it only takes 36 hours for the fertilized eggs to develop into planula.

Perhaps the eggs don't get released all at the same time. Those that get released early get fertilized in the water column. Eggs that don't make it out early are fertilized inside the female and have already become planula by the time they are released over the course of a couple days.

It is also possible that Delbeek and/or Sprung mis-identified the ciliated eggs as embryos/planula.

I have the utmost respect of Charles Delbeek and Julian Sprung, but since Anna Scott has raised the sexually reproduced anemones to adulthood, I would be inclined to give her the nod on this one. Plus, I am pretty sure the Scott article is more recent than the Delbeek article.
 
I think I agree with Phil. Dr. Scott are more likely to be right. I wish we can confirm one way or the other with a third or fourth observation.
Delbeek also raised the sexually reproduced BTA to maturity also, before Dr. Scott.
 
She is still holding some eggs, but not as many. I never noticed any in the water column, but I am sure they would have been eaten. I'll try to snap an update picture tomorrow.
 
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