[2] It is locally threatened by habitat loss caused by dam building and construction of concrete riverbanks.

Their mouths are big and have suction pads that allow them to cling onto rocks in a strong current in order to not get carried away.

The male creates a territory on top of a rock on the riverside and does a mating call.

Around 500 total eggs are laid across multiple sessions in the water, usually underneath a rock, between the months of April and August.

Because of their cry they have been the subject of Waka (summer kigo), and in Japanese a person with a beautiful singing voice is referred to as "Kajika".