The abundance of rivers and streams in Arunachal Pradesh provides habitats for a variety of fish species, including:

Mahseer are a type of freshwater fish that are native to India and Southeast Asia. They are known for their large size and their fighting spirit. Trout are a type of freshwater fish that are native to the Northern Hemisphere. They are known for their beautiful coloration and their delicious flesh. Catfish are a type of freshwater fish that are native to both the Northern and Southern Hemispheres. They are known for their long, slender bodies and their ability to breathe air.

The abundance of rivers and streams in Arunachal Pradesh provides a valuable habitat for these fish species. The rivers and streams are also a popular destination for fishing enthusiasts.