Clarias magur

Species Overview Clarias magur, commonly known as the walking catfish or magur, is a freshwater fish species native to South Asia. This elongated catfish can reach lengths of up to 47 centimeters and is distinguished by its ability to breathe atmospheric air through a specialized organ, allowing it to survive in oxygen-poor waters. The species can also move overland between water bodies using its pectoral fins, earning its "walking" designation.

In aquatic ecosystems, C. magur serves as both predator and prey, feeding on smaller fish, invertebrates, and organic matter while supporting local food webs.

Geographic Range and Habitat The species occurs across Bangladesh, Bhutan, India, and Nepal, inhabiting permanent freshwater lakes, wetlands, and some marine coastal areas. It typically favors shallow, muddy waters including ponds, marshes, and seasonal wetlands where it can burrow into sediment during dry periods.

Threats and Conservation Status Listed as Endangered by the IUCN with a decreasing population trend, C. magur faces significant pressure from habitat destruction due to wetland conversion for agriculture and urban development. Water pollution, overfishing for local consumption, and the introduction of non-native species have further contributed to population declines across its range.

Conservation Efforts and Outlook Limited conservation measures are currently in place, though some regional aquaculture programs attempt to maintain breeding populations. Without comprehensive habitat protection and restoration initiatives, the species' trajectory remains concerning, with continued population decline expected across much of its historical range.