Threats to the humpback whale
Killer whales
Predators
Teeth mark scars suggest that killer whales commonly attack humpbacks. It is likely however, that only young calves suffer fatal attacks.
Human impact
Due to their coastal distribution, humpback whales were heavily exploited by the whaling industry, and it is estimated that over 90% of some populations were killed. Most populations now appear to be recovering. These whales are known to die from entanglement in fishing gear and collisions with ships. As these animals are only visitors to New Zealand, whale watching is opportunistic and is unlikely to affect their behaviour.
Contacts
To report whale or dolphin sightings or strandings phone the DOC HOTline 24 hour emergency number:
0800 DOC HOTline (0800 362 468)