Urgent conservation action for the Critically Endangered Clarias sulcatus, an island endemic species in Redang Island, Peninsular Malaysia
The challenge Freshwater fishes are one of the most highly threatened species groups but are also often neglected in receiving conservation attention. Clarias sulcatus is a hyperendemic island catfish found only in fast-flowing streams on Redang Island, off the east coast of Peninsular Malaysia. Described only in 1999, little is known about the species, but they are facing immense pressure from land development and abstraction of freshwater to support the rapidly growing tourism on the island. The species is…