Salmon is the most popular item at conveyor-belt sushi restaurants in Japan, and demand continues to grow both domestically and globally. In response, Japan’s salmon farming industry has been rapidly expanding. Domestic production is projected to reach approximately 33,000–34,000 tons in 2026, up about 10% from the previous year and marking a new record. This growth is driven by both traditional sea-based aquaculture and the rapid development of land-based farming using Recirculating Aquaculture Systems (RAS).
In coastal regions such as Aomori and Hokkaido, sea-based farming remains a core production method. In the cold, fast-moving waters of the Tsugaru Strait, salmon develop firm flesh and rich fat content—qualities highly valued for sushi and sashimi. Companies such as Okamura Foods are leading this sector by introducing advanced Nordic technologies and large-scale farming systems. Working closely with local fishing communities, they produce branded fish such as “Aomori Salmon,” while expanding operations to include land-based hatcheries and remote-controlled feeding systems.
At the same time, Japan is seeing significant investment in land-based aquaculture. Pure Salmon Japan is developing one of the world’s largest RAS facilities in Tsu, Mie Prefecture, with a planned annual capacity of 10,000 tons. Other major players include FUJI ATLANTIC SALMON in Shizuoka, Atland (a joint venture between Mitsubishi Corporation and Umios) in Toyama, and FRD Japan in Saitama. These operations aim to produce high-quality salmon with fully controlled water conditions, reducing disease risk and enabling year-round production.
A defining characteristic of Japan’s salmon farming industry is its diversity of species and local brands. Farmed salmon in Japan includes a range of types, each with unique traits. Below is a detailed overview of major salmon species and brands:
| Species | Brand / Regional Name | Location | Farming Method | Estimated Annual Production (tons) |
|---|---|---|---|---|
| Atlantic salmon | FUJI ATLANTIC SALMON | Shizuoka | Land-based (RAS) | 4,700〜5,300 |
| Atlantic salmon | Atland | Toyama | Land-based (RAS) | 2,500 |
| Atlantic salmon | Pure Salmon Japan | Mie | Land-based (RAS) | 10,000 |
| Coho salmon | Kaikyo Salmon | Tohoku–Hokkaido | Sea-based | Not publicly disclosed |
| Coho salmon | Miyagi Salmon | Miyagi Prefecture | Sea-based | Not publicly disclosed |
| Coho salmon | Date no Gin | Hokkaido Pacific coast | Sea-based | Not publicly disclosed |
| Coho salmon | Kinka Gin | Miyagi Ishinomaki area | Sea-based | Not publicly disclosed |
| Coho salmon | Gin no Suke | Regional | Sea-based | Not publicly disclosed |
| Rainbow trout / Trout salmon | Sakura Gin | Various farms | Sea-based / Land-based | Not publicly disclosed |
| Rainbow trout / Trout salmon | Kiwami Sake | Various local cooperatives | Sea-based / Land-based | Not publicly disclosed |
| Rainbow trout / Trout salmon | Yamanashi / Nagano | Regional | Land-based | Not publicly disclosed |
| Chinook (King) salmon | Various premium farms | Regional | Sea-based / Land-based | Not publicly disclosed |
| Donaldson trout | Various farms | Regional | Land-based / Hybrid | Not publicly disclosed |
| Hybrid crosses | Various farms | Regional | Land-based / Sea-based | Not publicly disclosed |
Despite this growth, Japan still relies heavily on imports, with around 80% of its salmon sourced from Northern Europe and South America. However, global factors are reshaping the market. The Ukraine–Russia conflict has increased air freight costs and extended delivery times from Norway, while geopolitical tensions involving the Middle East, including Iran and the United States, have driven up oil and electricity prices. These factors not only raise import costs—already up roughly 60% over the past five years—but also impact domestic production, particularly energy-intensive land-based systems.
Each farming method presents its own advantages and challenges. Sea-based farming allows for large-scale production and natural growth conditions but is vulnerable to environmental risks such as red tides and disease. Land-based RAS systems offer precise control over water quality and eliminate marine pollution, yet require substantial capital investment and high energy consumption. Hybrid systems, in which fish are raised on land before being transferred to the sea, provide a balance between efficiency and quality but add operational complexity.
Looking ahead, Japan’s ability to establish itself as a major salmon-producing nation will depend on how effectively it integrates these approaches. Expanding branded domestic production, improving energy efficiency, and leveraging technological innovation will be essential. At the same time, imported salmon is likely to remain important for premium markets, while domestic farmed salmon increasingly supports local demand.
In this evolving landscape, Japan’s salmon industry is shifting from import dependence toward a more diversified and resilient production model—one that combines regional identity, species diversity, and advanced aquaculture technology.
No people in the world love squid more than the Japanese. Squid ranks third in import volume behind shrimp and tuna. Squid is brought to Japan from the oceans all over the world. There are between 400 and 500 species of wild squid on Earth. Some, like the pygmy cuttlefish, are tinier than 3 millimeters while the giant squid is over 10 meters.
It goes without saying, that each type of fish has its very own scientific name. However, in places like the Toyosu Fish Market, there are seafoods that end up sharing a name.
Black Tiger is in the category of the largest shrimp that is part of the Kuruma Ebi family and grows to be up to 30 cm. Black Tiger gets its name from the fact that it looks black before it is heated and has stripes like a tiger. The official name in Japan is “Ushi Ebi” but the reason is unknown. The Black Tiger is cultivated heavily in places like China, Vietnam, Indonesia, Thailand and India. It started to be imported from Taiwan in the 1980s to compensate when Japan’s shrimp consumption could no longer be covered by Kuruma Ebi. At the peak, it accounted for 40% of Japan’s shrimp imports. There is a strong impression of shrimp being imported, but small Black Tiger can actually be caught in Japan from Tokyo Bay southward.
The official name of Mirugai is “Mirukui”. The part of the Mirugai that is used as a sushi topping is the siphon that bulges out from the shell. The siphon is separated from the shell and then this is cut through longways, from top to bottom. One Mirugai can only produce four pieces of sushi. It is also nearly extinct from overfishing. While it can still be caught in the Seto Inland Sea and Mikawa Bay, there are fishing limits, which means it is an ultra-high-priced sushi topping.
Immature salmon eggs still wrapped in ovarian membrane and salted are called sujiko. Ikura is salmon roe in which each mature egg is separated from the ovarian membrane before laying the eggs and then salted or marinated in soy sauce. The ikura of Chum salmon going upstream in the Kushiro River and Tokachi River in Hokkaido From October to December are considered to be premium ikura.
You probably already know this, but “toro tuna” is not the name of a type of fish. “Toro” is the name of a fatty part of the tuna. The fat content and attributes of the belly side of the tuna are completely different from that of the dorsal side. Toro is the name of the part near the head, mostly on the belly side.
The Donaldson trout is farmed throughout Japan and is used as toro salmon and aburi salmon at conveyor belt sushi restaurants. Since they are supplied directly to the processor (of the salmon) from the farmer without going through the market, they may be sold cheaper than the import price. Just like the imported salmon, this farmed salmon is also fed artificial coloring. There are also already new variants improved from the Donaldson trout being bred. Trout made from breeding Donaldson trout females and steelhead males are called Donaldson steelhead, for instance. They grow even faster.
When you see “tai” on the menu at a conveyor belt sushi restaurant, it’s very likely that is not “madai” (
First on the list is Nile tilapia. This fish was introduced from Egypt to rivers throughout the world as food in 1962. While it was farmed in large quantities in Japan, especially in Kagoshima, from the 1990s, production rapidly declined with the stagnant prices of farmed madai. However, they are extremely fertile and proliferate naturally, and started living in the thermal regions and the rivers where warm wastewater flow throughout Japan.
There is only one trick to distinguishing between conveyor belt sushi restaurants (kaiten-zushi), and that is to try eating the tuna as your first dish.
The most commonly used ingredient at kaiten-zushi is tuna. At kaiten-zushi, the tuna is imported and frozen nearly 100% of the time. The most famous is the Southern blue-fin tun, but you’ll also find Boston bluefin tuna, Canadian tuna farmed in fish preserves, inland sea tuna from Turkey and Spain, New Zealand offshore tuna, Atlantic tuna, etc. Also, the season of each type of tuna and the timing of high-volume catch differ, which makes the prices fluctuate greatly.
It seems kanikama was invented in Japan. In the early 1970s, Sugiyo, a fish paste manufacturer, in a failed attempt to develop artificial jellyfish, ended up with a product that had a texture exactly like crab and shifted development to that instead.
On the other hand, an orange-colored tobiko is often seen at conveyor belt sushi restaurants, etc., but this is the roe of a fish called capelin (カペリン), which is similar to shishamo smelt. A salted version of this is used for sushi rolls in the US and other places, where it is called masago. Compared to tobiko, the grains are smaller and the texture is a bit chewier. It is mainly rich in EPA (Omega-3 fatty acids) and collagen.
Finally, we’ll let you in on a not-so-pleasant secret. Flying fish and capelin roe is actually a light yellow or beige color. However, you’ll find it in bright red, orange, yellow and lately even green or black. Of course, these are colored by either natural pigments or synthetic coloring. Furthermore, tobiko is sometimes mixed with the cheaper capelin or herring roe. Unfortunately, food fraud is common in seafood products that are consumed in high quantities.