Char can get big, but more impressive is their rich coloring. From giant Arctic Char to small native brookies, they resemble living paintings.

These fish don ... the Amazon River and require warm water (82–86°F), low current, and excellent filtration. They’re social but sensitive, so it’s best to keep them in small groups ...

When you fish a large river, it’s feasible that you could stay put and fish one run productively for a couple hours. Not so on small streams. The pockets that you’re fishing will hold a ...

Guiunio rarus, or the rare Guangxi freshwater mussel, was found “living in the slow flowing stream with muddy and sandy bottom” alongside other species, according to the study. The mussels were also ...

but their appearance in the Sandy River is far less consistent. These small, silvery fish spend most of their lives in the ocean, migrating upstream to spawn and typically dying shortly after.

The first-ever acoustic telemetry network in the Mekong River has tracked key migration corridors critical to the survival of ...