Gharials require specific sandy river banks for nesting, and sand mining in their remaining river habitat is destroying the nesting sites critical for their already critically depleted populations.
Gharials whose nesting beaches are destroyed by sand mining face complete reproductive failure — without suitable sandy banks above the waterline, nesting cannot occur. Females that cannot find appropriate nesting sites carry developing eggs that eventually resorb, representing a direct welfare and reproductive cost. Hatchlings released into rivers with disrupted banks face inadequate basking sites and altered current patterns that increase predation and stranding risk. The critical dependency of gharials on specific riverside microhabitats makes habitat protection the highest-priority intervention — captive breeding cannot compensate for a lack of suitable wild habitat.