Norway-headquartered maritime group Trident Aqua Services has contracted a new live fish carrier and a premium service vessel, both powered by battery-hybrid technology. With these new additions, the company now has seven vessels under construction – bringing the fleet’s size to 69.

Trident said the new vessels will combine advanced technology with innovative design and that they meet the highest requirements for environment, biosecurity and fish welfare in the aquaculture industry. The investment in battery-hybrid vessels delivers significant emission reductions, while ensuring operational reliability and efficiency, it added.
The new live fish carrier, developed by Salt Ship Design, will be built at the Zamakona shipyard in Bilbao, becoming the fourth vessel that Trident has contracted there. With a capacity of 4,000 cubic metres, it will be equipped with a state-of-the-art fish-handling system from MMC First Process, a powerful reverse osmosis plant, and hybrid propulsion. The contract process was supported by MIL Shipping.
“This investment represents not only a significant capacity increase, but also a strengthening of our ability to deliver the very best services to current and future customers worldwide,” Trident Aqua Services CEO Arild Aasmyr said.
The vessel will feature a highly flexible platform adaptable to diverse customer needs, while also reinforcing Trident’s strong position in freshwater-based treatments against sea lice and amoebic gill disease (AGD).
“Zamakona is proud to strengthen our collaboration with Trident Aqua Services and contribute to the company’s continued growth. The new contract is a great success for the shipyard and secures a solid order book for the next three years,” Zamakona Chairman Pedro Garaygordobil said.
At the same time, Trident is contracting a new 27-metre premium service vessel to be built at Sletta Ship Yard. The vessel is designed by Solstrand Trading and is the 17th vessel built by Sletta for Trident.
“We greatly appreciate the trust placed in us and look forward to delivering yet another vessel that both we and Trident Aqua Services can be proud of. The project builds on our strong and long-term collaboration, and we are excited to once again showcase what we can deliver in modern, top-quality vessels,” Sletta Ship Yard Managing Director Kåre Sletta said.
The vessel is built for complex service operations in the aquaculture industry, equipped with a 1,570 kWh battery pack. Combined with powerful deck equipment and an ROV-system capable of bolt drilling down to 300 metres, the vessel is well equipped for safe and efficient operations.
“We need partners who deliver both innovation and quality, and who share our ambition to lead in technology and sustainability. Both Zamakona and Sletta Ship Yard know us well, challenge us, and have delivered high quality and reliability in previous projects. We are confident they will do the same this time. These vessels will be important additions that significantly strengthen our fleet,” Aasmyr said.
Trident recently received Multi Frontier, also built as Sletta, and has two additional vessels under construction at the shipyard: Multi Installer (27 metres) and Multi Master (20 metres).
“For us, it’s about being a partner our customers can rely on. With the industry’s most skilled crews, combining maritime expertise with state-of-the-art vessels, we are equipped to deliver quality at every stage,” Aasmyr said.