Two Types of Sea Urchin Found in Aomori
Kitamurasaki Uni
Kitamurasaki uni is known locally as “nona.” It has relatively short spines and roe that tends toward a reddish-orange color. The sea urchins live among rocky areas and fields of scattered stones at depths of generally less than 60 meters.
Large individuals can grow to more than 15 centimeters in shell diameter. The roe has a rich, creamy character and is highly valued as a delicacy.
Ezo Bafun Uni
Ezo bafun uni is locally known as “gaze.” Compared with Kitamurasaki uni, it has longer spines and roe that tends to be pale or whitish in color.
It inhabits rocky areas and fields of scattered stones at depths of generally less than 20 meters. It typically grows to around 7–8 centimeters.
Only the Edible Roe Is Used
When people eat sea urchin, they are actually enjoying the reproductive organs inside the shell. These delicate portions are prized for their soft texture and concentrated flavor.
The edible roe is enjoyed in many forms. It is commonly served as a topping for sushi, where its creamy texture pairs beautifully with vinegared rice. It can also be used in steamed dishes or made into traditional preserved specialties such as neri-uni and shio-uni.
A Rich Taste of Aomori’s Coastal Waters
The appeal of Aomori sea urchin lies in the balance of natural sweetness, creamy richness, and fresh ocean aroma. Its delicate texture melts almost effortlessly in the mouth, while its deep flavor lingers on the palate.
For visitors from overseas, fresh sea urchin is an excellent way to experience Japan’s seafood culture beyond familiar sushi ingredients. Enjoying it at its freshest allows you to appreciate the subtle differences between the varieties harvested along Aomori’s coast.
Peak Season
Best season: June, July, and August
During the summer season, Aomori’s sea urchin is at its best. Whether enjoyed simply as sushi, incorporated into a delicate cooked dish, or tasted as a traditional preserved specialty, Aomori sea urchin offers a luxurious taste of the prefecture’s rich coastal food culture.