A colleague has found a creature in her garden pond which is eating the jelly around the frogspawn. It is abour a foot long, white, and resemble a length of 'thick cotton'. Any ideas?
It's a nematode, a 'free living' roundworm (i.e. it doesn't live inside a host's body). It is parasitic and lives anywhere damp or wet, even in puddles.
Thanks for this - I have now googled nematodes and they seem to be much smaller than the one seen in the pond - the largest I can find is half the size of it (80cm). It does fit the description other than the length.
Nematodes, as you will by now have discovered, come in various lengths and colours. The particular type your colleague has in her pond is, I should think, a threadworm.