As it is a rare, recently discovered species of aquatic snail, there is little available information on the biology of Gyraulus ioanis. However, members of the Planorbidae family are known to be hermaphroditic, with an individual snail possessing both male and female sexual organs (3). Planorbidae are pulmonates, meaning that they can breathe air, which enables some members of the family to survive generally unfavourable, low-oxygen conditions. Planorbidae species can also absorb oxygen directly from the water (3).
The diet of most Planorbidae species consists of plant matter, with some species feeding on fresh plants and algae, while others feed on decaying plant matter (3) (5).