Image of European Common Frog

Description:

The poor thing was laying eggs (but they were stuck somehow), no male around, in a very small basin, initially used for trouts. Water gauge was only about 15cm and exposed to the sun all day. She was bloated and couldn't move much. Anyone knows what kind of illness this is? I saw it in captive frogs (illness: Hydrops) when they had a lack of vitamins. I am worried about the population since there are many ponds around...hope someone can help!