Sperm Whale Welfare: Deep Diving, Noise Pollution, and Strandings in the Atlantic

Sperm whales are the world's largest toothed whale and deepest-diving air-breathing animal, with welfare threats from anthropogenic noise, ship strikes, plastic ingestion, and entanglement in deep-sea fishing gear.

Key Facts

Sperm whales dive to depths exceeding 2,000 metres and hold their breath for over 90 minutes
They use echolocation clicks among the loudest sounds produced by any animal to locate giant squid prey
Military sonar exercises and seismic surveys from oil exploration disrupt sperm whale navigation and communication
Plastic bags and debris ingested by sperm whales cause intestinal blockage, starvation, and death

Welfare Considerations

Anthropogenic noise at frequencies that overlap sperm whale communication and echolocation causes disorientation, separation of mother-calf pairs, and in severe cases mass strandings. Stranded sperm whales experience organ compression from their own body weight, hyperthermia, and dehydration — suffering that can last hours to days before death. Entanglement in deep-set longlines causes severe restraint and drowning. Plastic ingestion cases reveal distended stomachs packed with debris — a prolonged starvation death masked by the stomach's false fullness.

What You Can Do

Support ORCA and Whale and Dolphin Conservation Society advocacy for military sonar restrictions during exercises near whale populations
Advocate for international bans on single-use plastic marine pollution as part of whale welfare campaigns
Donate to IFAW stranding response capacity in countries with Atlantic sperm whale strandings
Raise awareness of seismic survey impacts on cetacean welfare in oil and gas exploration debates