Marine Mammal Strandings: Welfare Response and Rescue

How marine mammal stranding networks operate to provide welfare-appropriate rescue and how members of the public can help or avoid harm.

Key Facts

Approximately 8,000 cetacean and pinniped strandings occur on UK coasts annually — globally the figure is in the tens of thousands
Common causes include infectious disease, bycatch injuries, starvation, pollution and anthropogenic acoustic trauma
Stranded dolphins and whales in warm weather can die from hyperthermia within hours without active cooling measures
Rehabilitation of small cetaceans is possible for some conditions but success rates are lower than for pinnipeds
Mass strandings may involve tens to hundreds of animals simultaneously — typically pilot whales and melon-headed whales
Euthanasia is often the most welfare-appropriate response for animals with severe injuries or no realistic chance of survival

Welfare Considerations

Marine mammal stranding response requires balancing the public impulse to help with the welfare reality that uncoordinated intervention often causes additional harm. A well-meaning member of the public attempting to refloat a stranded dolphin before trained responders assess the animal may force a fatally injured animal back into the sea to drown or strand again. The welfare priority during a stranding event is rapid professional assessment to triage animals into those that can survive with treatment, those that require euthanasia for welfare reasons, and those that may be safely returned to the sea. This requires trained personnel, appropriate equipment and a clear chain of authority that public engagement should support rather than supplant.

What You Can Do

Contact your national stranding network immediately (BDMLR in the UK, NOAA in the USA) — do not attempt to refloat alone
Keep crowds and dogs back from stranded animals — proximity causes additional stress to already-compromised animals
If instructed to help by trained responders, follow their guidance exactly — do not improvise
Do not pour water over a dolphin or whale blowhole — direct cooling with wet cloths on the body is appropriate, not face or blowhole
Support stranding network charities — these are typically volunteer-staffed and rely on donations for equipment and training
Report all sightings of live or dead strandings — data on location, species and apparent condition guides rescue resource deployment