Humpback whales have recovered significantly since the end of commercial whaling, but face ongoing welfare threats from entanglement, ship strikes, and noise pollution that affect millions of individuals.
Humpback whale welfare harms arise from human activities that intersect their vast migration routes and foraging areas. Entanglement in crab pot ropes, gillnets, and longlines causes progressive suffering — whales may drag gear for months before exhaustion, starvation, or infection kills them or disentanglement teams reach them. Ship strikes cause blunt trauma and propeller injuries ranging from non-fatal scarring to immediate death. Ocean noise from shipping, sonar, and seismic surveys disrupts the complex acoustic communication that humpbacks depend on for mating, social bonding, and feeding coordination. Protecting these animals at scale requires international cooperation on ropeless fishing gear, vessel speed restrictions, and marine protected areas encompassing key feeding grounds.