Eutropiichthys vacha is a species of schilbid catfish native to India, Nepal, Bhutan, and Bangladesh.

Eutropiichthys vacha is a climate sensitive species that may be selected as a target species for climate change impact studies.

Region-specific adaptation was noticed in breeding phenology of this schilbid catfish in River Ganga, based on local trends of warming climate.

A threshold water temperature around 24 °C and rainfall of > 100 mm were found to be necessary for attainment of breeding GSI (> 3.5 units) in E. vacha.

It appears that warming climate may have the most profound effect on gonad maturation and spawning in E.