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All I can say ia Man some of us have waaaaayyyyyy too much time on our hands!! LOL

And thanks god they do, we all need a laugh like that!!! \:D \:D \:D

The only thing I wonder is how much a govenmental agency would have funded for a report with less detail and less fact than that one. I think I have to go out and ask for funding for research on this subject. When I get it I think I will have to build a new 25 acre pond to do the study on!!! ;\)


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1/10 - 1/4 acre pond plus 16 ft deep/ Plus 40 ft by 20 ft by 6 ft deep koi and fathead minnow pond next to it. Upstate NY

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I was out onmy pond today and I checked on the open holes that I mentioned on Friday Dec 16th. After two nights of single digit temps the holes are frozen over with thick ice. Once the snow got all water soaked, the forces or pressures equalized between weight of the snow on the ice and the flotation force. THEN the water quit moving out through the hole. After all the snow got water soaked, it froze a layer of cloudy ice 1.5" thick. I now have 5.5" of firm uniform ice across the pond.

I drilled several holes at various spots late this afternoon and watched perch feed on the soft, rolled, pellets that I was droppng into the hole. I had y. perch feeding up within 12" of the hole in the ice.


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Never happened here.....until now.

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 Quote:
Originally posted by Bill Cody:
I was out onmy pond today and I checked on the open holes that I mentioned on Friday Dec 16th. After two nights of single digit temps the holes are frozen over with thick ice. Once the snow got all water soaked, the forces or pressures equalized between weight of the snow on the ice and the flotation force. THEN the water quit moving out through the hole. After all the snow got water soaked, it froze a layer of cloudy ice 1.5" thick. I now have 5.5" of firm uniform ice across the pond.

I drilled several holes at various spots late this afternoon and watched perch feed on the soft, rolled, pellets that I was droppng into the hole. I had y. perch feeding up within 12" of the hole in the ice.
Bill!

You're feeding your perch through the ice! I know you want to beat my big perch but that's a little desparate isn't it? \:D


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.






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CB1 - You have to use every trick in the fish culture handbook to stay ahead of 2nd and 3rd place. \:D


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This is a very old thread, but I was still unable to find a definitive answer to what is causing these things to appear. When we first saw them hubby & I assumed an animal had fallen through the ice and gotten frozen over - but nobody was ever found in spring. The pond is 8' deep and about the size of a hockey rink. I can get 7"+ thickness out there, and the clear spider veins are darned solid. So welcome to the close of 2022 and we now have Chat GPT to research & find the answer for us. So for anyone who was STILL wondering after 17 years...

Spider-like ice rosettes are formed when thin layers of ice form on top of a frozen pond or other body of water. These rosettes are formed when the thin layers of ice are pushed up by the expansion of the water underneath as it freezes. The ice layers are pushed up in a circular pattern, forming the characteristic "spider-like" appearance of the rosettes. The size and shape of the rosettes can vary depending on the temperature and humidity conditions at the time they are forming.

One way to visualize the process is to imagine a layer of water on top of a frozen pond. As the temperature drops, the water begins to freeze from the bottom up. As the water at the bottom of the layer freezes, it expands and pushes the water above it upwards. This creates a circular pattern of ice on the surface of the pond, with the center of the circle being the highest point. The thin layers of ice that form on top of the water continue to be pushed upwards as more and more water freezes, creating the distinctive spider-like appearance of the rosettes.

It's worth noting that ice rosettes are not a common occurrence, and they are typically only seen in very specific conditions. They tend to form when the temperature is extremely cold and the humidity is low, as these conditions allow the water to freeze quickly and evenly. They are also more likely to form in areas with relatively still water, as the movement of the water can disrupt the formation of the rosettes.

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Originally Posted by HighCountryGirl
This is a very old thread, but I was still unable to find a definitive answer to what is causing these things to appear. When we first saw them hubby & I assumed an animal had fallen through the ice and gotten frozen over - but nobody was ever found in spring. The pond is 8' deep and about the size of a hockey rink. I can get 7"+ thickness out there, and the clear spider veins are darned solid. So welcome to the close of 2022 and we now have Chat GPT to research & find the answer for us. So for anyone who was STILL wondering after 17 years...

Spider-like ice rosettes are formed when thin layers of ice form on top of a frozen pond or other body of water. These rosettes are formed when the thin layers of ice are pushed up by the expansion of the water underneath as it freezes. The ice layers are pushed up in a circular pattern, forming the characteristic "spider-like" appearance of the rosettes. The size and shape of the rosettes can vary depending on the temperature and humidity conditions at the time they are forming.

One way to visualize the process is to imagine a layer of water on top of a frozen pond. As the temperature drops, the water begins to freeze from the bottom up. As the water at the bottom of the layer freezes, it expands and pushes the water above it upwards. This creates a circular pattern of ice on the surface of the pond, with the center of the circle being the highest point. The thin layers of ice that form on top of the water continue to be pushed upwards as more and more water freezes, creating the distinctive spider-like appearance of the rosettes.

It's worth noting that ice rosettes are not a common occurrence, and they are typically only seen in very specific conditions. They tend to form when the temperature is extremely cold and the humidity is low, as these conditions allow the water to freeze quickly and evenly. They are also more likely to form in areas with relatively still water, as the movement of the water can disrupt the formation of the rosettes.

It will also happen when the ice is thawing, the water on top of the ice will make a hole and the "legs" are the rivulets of water running to the hole. Then it gets colder out and it all re-freezes.


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Thank you for bringing up this old post and sharing an explanation. I saw the same phenomena on my new pond as it froze a few weeks ago and was wondering as to the cause. After the last hard freeze we got, they mostly went away.

I must say that I still like the alternate explanations...

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