Most of the frogspawn already laid was killed by the icy water temperature, and began to disintegrate after a few days. However, I did manage to find one clump which had been protected as it was lying in slightly deeper water, underneath a larger clump. I salvaged it and put it in the greenhouse, in a take-away container ! Nothing but the best for my little taddies !
If I am honest I didn't hold out much hope for it, and nearly forgot about it, remembering to check only when temperatures began to rise. When I checked ... there was life ! Wriggling, active tadpoles !
They went back into the pond, after they were gradually introduced to the colder water.
I swear they turned and waved before they swam away!
I spent ages this morning gazing into the pond to see if any of the original frogspawn had hatched (note to self ... must get out more !). I did see the occasional tadpole, but nothing like the hoards we usually have - the pond sides are usually thick with them, in the shallows.
So, I think I maybe did do some good in the name of re-frogification, as I have reintroduced about 50 tadpoles which would otherwise have died.