On the effect of Gangatrema dehradoonense (Digenea: Opecoelidae) on the pH of small intestine in the freshwater fish Labeo dero.

The effects of a digenetic trematode Gangatrema dehradoonense (Digenea: Opecoelidae) on the pH of small intestine in Labeo dero (Ham.) have been studied. The pH of healthy and infected intestine vary before and after feeding. A low pH has been noted in heavily infected intestine.