Welcome to Akaroa Dolphins ~ Official Site

14 August 2026

The Lifecycle of the NZ Fur Seal

Meet one of our coolest locals, the New Zealand fur seal, or kekeno. From wee pups in rock pools to powerful bulls guarding their territories, their lifecycle is perfectly tuned to the seasons.

 

Life on the Rocks: 


Around Akaroa Harbour, kekeno gather at sheltered, rocky haul-out sites like Seal Bay and Scenery Nook. These spots provide protection from swell and safe spaces for resting, breeding, and even “swimming lessons” for pups.

 

Summer: Births, Battles & Breeding:


From late October, large males (up to 2.5 m and 180 kg) arrive first, competing fiercely for territory. By late November, females return from sea to give birth — usually in December.
In a remarkable twist, females mate again just days after giving birth, but the embryo pauses development (called delayed implantation), ensuring the next pup arrives the following summer when conditions are ideal.

 

Growing Up Kekeno:


Newborn pups weigh just a few kilos but quickly grow strong on rich milk. After about 12 days of constant care, mums alternate between feeding trips at sea and nursing on land. As the pups grow, they can be left alone on land for around 10 days. 
Pups spend months playing, exploring, and learning survival skills in crèches — social groups that prepare them for independence. By 9–10 months, most are weaned and ready to head out on their own, sometimes travelling over 1,000 km.

 

Life at Sea:


Kekeno are agile hunters, diving up to 270 m in search of squid, fish, and crustaceans. Their thick fur keeps them warm in cold water, while rock pools help them cool off on land.

 

 

Survival & Maturity:


Life isn’t easy — up to 40% of pups don’t survive their first year. Those that do may live 12–15 years (or longer), with females breeding from around 4–6 years old, and males only dominating territories once they’re large enough, often after age 8.

 

Why They Matter:


Kekeno are an essential part of New Zealand’s marine ecosystem, helping maintain balance in ocean food webs. Their strong connection to specific coastal sites means what happens on our shores directly affects their survival.

 

Spot Them — Respectfully:


Whether it’s a curious pup, a moulting juvenile, or a watchful bull, you may encounter kekeno year-round in Akaroa. If you do, keep your distance — they’re wild animals, and especially protective during breeding season. You should NEVER get in between a seal and the water and stay away from any pups.

 
From rocky shores to deep ocean dives, the lifecycle of a kekeno is a story of resilience, adaptation, and connection to the sea — one you might witness right here in Akaroa Harbour.