Marine Mammal Stranding Response

How stranding response networks work, the welfare challenges of treating stranded marine mammals, and how the public can help.

Key Facts

Thousands of cetaceans and pinnipeds strand alive on beaches globally each year due to disease, injury, and disorientation
Mass strandings of pilot whales and other social cetaceans may involve individuals following sick leaders
Welfare during stranding response requires balancing treatment needs against the stress of handling and captivity
Dehydration, thermal stress, and aspiration of sand or water during stranding cause secondary health complications
Live release success rates vary by species — some injured animals cannot survive in the wild after stranding
Public assistance with strandings, while well-intentioned, can inadvertently cause additional harm if untrained
Networks like the National Oceanic and Atmospheric Administration in the US coordinate professional stranding response

Welfare Considerations

Marine mammal stranding response involves difficult welfare calculations: treatment is stressful, transport is stressful, captive rehabilitation is stressful, and release back to the wild may not be survivable for animals with chronic injuries. Good stranding response welfare means minimizing handling time, providing shade and moisture for animals during assessment, making rapid and honest prognosis decisions, and choosing euthanasia over prolonged suffering when recovery is unlikely. It also means equipping volunteers and the public with the knowledge to call professionals quickly rather than attempting intervention without training.

What You Can Do

Save the number of your local marine mammal stranding network in your phone if you live near the coast
Do not attempt to return a stranded marine mammal to the water — call professionals first
Keep bystanders at a safe and calm distance from stranded animals to minimize additional stress
Support your regional marine mammal rescue organization through volunteering or donation
Advocate for fishing gear modifications that reduce entanglement, a leading cause of marine mammal strandings
Report any stranded marine mammal to wildlife authorities immediately and provide precise location information