I found this OSU paper on the web that answers a lot of the questions asked here. It also gave me the idea to look at some eggs under my microscope. I got the idea too late though because I had to work the entire weekend and now that I'm home it looks like the strands are gone. I know what day they were produced and I've been visiting them daily (till this weekend), checking the water temp, I think it was time.
We had a cold spell here too, when I arrived home from work 6 am Saturday morning the air temperature was 32.2F so I checked the pond temp and it was 54F. My water temperature stayed over fifty everyday since the beginning but I don't know if they were even fertile. It sounds like Fungus can be an devastating issue also. Time will tell.
Here's the article, not sure if it's been posted before.
http://southcenters.osu.edu/sites/southc...olFactsheet.pdf