master of the rocky crevice

Size
Length: 1–2 m
Lifespan
1–2 years.
Diet
Carnivorous. Feeds on crabs, crayfish, shellfish, and small fish at night.
Habitat
Coastal reefs, rock pools, sandy bottoms, and crevices from intertidal to 100m depth.
Range
Throughout New Zealand coastal waters, from north to south islands.
Endemism
Endemic
Main Threats
Overfishing in localised areas. Habitat degradation in coastal environments.
Population
Abundant in suitable habitat throughout New Zealand coastal waters.
Conservation Status
data_deficient
Human Risk
caution
Handling Note
can deliver a painful bite if provoked or handled roughly
Conservation Note
Cephalopod species not included in the 2021 NZTCS marine invertebrates assessment; conservation status currently unassessed nationally.
Te Ao Māori
The Maori octopus is a significant species in Māori culture, known as wheke. It appears in whakapapa and traditional stories, often symbolising intelligence and adaptability. Wheke are valued as kai (food) and are harvested sustainably in many coastal communities. The species represents the connection between people and the marine environment, highlighting respectful harvesting practices.
Without it, the rock pool would be a much quieter place. Macroctopus maorum is the octopus most New Zealanders are likely to meet. It is intelligent, curious, and highly adaptable. Found in coastal waters from the intertidal zone to depths of 100 metres, it is a master of disguise. Its skin can change colour and texture in milliseconds, allowing it to blend seamlessly with rocks, sand, or kelp. It hunts at night, emerging from its den to feed on crabs, crayfish, and shellfish. During the day, it hides in crevices or under boulders, watching the world with keen eyes. The Maori octopus is a solitary creature, coming together only to mate. Females lay thousands of eggs in a protected den, guarding them fiercely until they hatch. She does not eat during this period, dedicating all her energy to the next generation. By the time the young emerge, she is often weak or dying. It is a costly investment in survival. For humans, it is a fascinating neighbour. Fishers respect its cunning, often finding their pots emptied by a clever intruder. Scientists study its intelligence, recognising a mind unlike any other in the sea. It is not just a resource. It is a presence. The numbers are stable in suitable habitat. And it watches back.