Gharials are critically endangered fish-eating crocodilians found only in a few rivers of South Asia. Their unique anatomy, specialised diet, and dependence on clear rivers make them extremely vulnerable to river degradation.
Gharials face welfare threats from multiple directions. Fishing net entanglement causes drowning — a prolonged, distressing death for air-breathing reptiles. Sand bank destruction through mining eliminates nesting sites, forcing females to nest in suboptimal locations with lower incubation success and exposing eggs to greater predation. River pollution from agricultural chemicals and urban waste reduces fish populations that gharials depend on, causing nutritional stress. Captive breeding and release programmes have been important for population recovery but involve handling stress. The extremely limited range of remaining populations means catastrophic events — a major pollution event or disease outbreak — could eliminate a significant fraction of the global population. Habitat protection, particularly of the Chambal river, is the most critical welfare and conservation intervention.