"If the animal is in severe pain or distress due to its injuries, however, euthanasia may be the only option."
Under the Marine Mammals Act anyone finding a marine mammal that is severely injured, entangled in debris or being harassed by people or dogs, should call0800 DoC HOT (0800 362 468).
There are penalties of up to six months' imprisonment or a fine of up to $250,000 for killing or harming a fur seal or other marine mammal.
New Zealand fur seals are not threatened but the number is still recovering from intensive hunting in the early 1800s when an estimated two million were clubbed to death.