Whale sharks are the world's largest fish and a major wildlife tourism attraction, but unregulated encounters cause stress and injury while their slow reproduction makes population recovery from threats extremely slow.
Whale shark welfare at popular tourism sites involves a complex balance between the conservation funding generated by responsible tourism and the direct welfare costs of irresponsible encounters. Feeding aggregations at sites like Oslob — where fishers feed whale sharks to attract tourists — create semi-wild dependency and concentrate large numbers of tourists and boats around animals that are naturally wide-ranging. Chronic disturbance, boat strikes, and feeding of nutritionally inappropriate food cause individual welfare harm. Well-managed tourism sites with strict approach distances, no-touch rules, limited diver numbers, and boat exclusion zones demonstrate that meaningful encounters can occur with minimal welfare cost. The slow maturation of whale sharks means that each individual that survives to reproductive age has outsized conservation value — every preventable death or welfare-compromising injury matters for the population.