Marine Mammal Strandings and Welfare Response

Marine mammal strandings - when cetaceans or pinnipeds come ashore in distress - require rapid welfare response. Understanding the causes of strandings and the challenges of rehabilitation helps direct effective action.

Key Facts

Strandings occur for many reasons including illness, disorientation, injury, and starvation
Mass strandings, particularly of pilot whales and sperm whales, are associated with social bonds following distressed individuals
The British Divers Marine Life Rescue (BDMLR) and RNLI coordinate response to cetacean strandings in the UK
Refloating large cetaceans is often unsuccessful and repeated strandings occur in the same individuals
Welfare assessment of stranded animals must balance potential for recovery against suffering of treatment
Euthanasia is often the most welfare-positive outcome for severely compromised stranded cetaceans
Military sonar has been implicated in some mass strandings through acoustic trauma and disorientation
Long-line fishing gear injuries and plastic ingestion are common causes of poor body condition in stranded animals

Welfare Considerations

Stranded marine mammals face acute welfare challenges including thermal stress, dehydration, crushing of internal organs from their own body weight, and the original cause of stranding. Appropriate welfare response requires rapid assessment by trained personnel and honest evaluation of prognosis. Prolonging the suffering of unrecoverable animals through repeated refloating attempts is ethically problematic. Clear welfare decision frameworks for stranded cetaceans are an important component of effective response networks.

What You Can Do

Contact BDMLR (01825 765546) if you find a stranded marine mammal in the UK
Do not attempt to refloat stranded cetaceans without trained guidance as this can worsen welfare
Stay back from stranded animals and keep dogs away while help is summoned
Support BDMLR and other marine mammal rescue organisations with donations or training