Mapping fish migration routes and identifying threats is crucial to protecting freshwater species and their habitats, ecologists argue.

The river catfish may be overshadowed by its famed cousin, the Mekong giant catfish, which shares the same river system in Southeast Asia. But this less celebrated species is a remarkable fish in ...

The proposed Funan Techo Canal is set to connect the country's coast to the Mekong River via a system of lock gates. In a new report, the World Wildlife Fund claims that dam developments ...

Despite its gargantuan size, but also because of it, the giant catfish lives a tenuous existence in the murky waters of its native river, Southeast Asia’s Mekong, where its numbers have ...