Harvest numbers and biomass growth at Proximar Seafood’s salmon project in Japan, near Mount Fuji, are developing positively, according to the company’s latest production update.

During the first three months of this year the Norwegian-owned business harvested 697 metric tons HOG from its land-based salmon farm. This was up from 339 tons HOG in the fourth quarter of 2025, bringing the total harvest since September 2024 to more than 2,000 tons HOG.
Biological indicators remained strong, with 95.4% superior grade in the quarter and 98.9% survival rate for the grow-out.
The standing biomass at the end of March was 1,880 tonnes, compared to 1,949 metric tonnes on 31 December 2025. Including the harvested biomass of 840 tons LW, gross biomass growth in the quarter was 771 tons.
Proximar says it currently has 23 batches and approximately 2.1 million healthy salmon in production.
During the quarter, Proximar harvested the last of the fish of mixed batches affected by earlier production disruptions.
The statement added: “This fish has also shown lower share of superior grade. This impacted average harvest weights, which ended at 2.25 kilo HOG for the quarter.
“Growth performance in the remaining production continues to demonstrate positive development.
“The average net sales price achieved in the first quarter was NOK 54 per kilo impacted by the low average harvest weights.”
However, for fish above three kilos HOG, average price achievement was NOK 75 per kilo, which was largely impacted by unpredictable supply and challenging sales planning during the period, combined with a weakened Japanese yen.
Proximar says its location, near one of the world’s most important fish markets (Tokyo) , implies significant advantages, both in terms of reduced cost and carbon footprint.
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