Storbåtsegget / Storbåtsegga
Vessel type
Semi-Closed Aquaculture Facility
Shipowner
Nordlaks
Shipyard
GEMAK
Year built
2025
Project Story
Storbåtsegget is a semi-closed aquaculture facility developed for Nordlaks and built at GEMAK, located at Sørvika in Hadsel. The facility is a circular, semi-closed structure with an outer diameter of 78 metres and a production volume of 86,700 m³, designed to provide greater control of the water environment around the fish than traditional open pens.
The design challenge has been to combine protection against sea lice and escapes with practical operations and good fish welfare. With a protected depth of approximately 20 metres and a maximum biomass of 3,120 tonnes, the structure is designed to reduce external environmental impact while functioning as a stable and reliable production facility.
Walls, screening and technical systems have been developed in conjunction with requirements for strength, stability and escape prevention, while access and inspection solutions are adapted for practical operation and maintenance throughout the production cycle.
Storbåtsegget demonstrates how semi-closed technology can give fish farmers greater control over the production environment without compromising operational practicality.
Facts
| Name | Storbåtsegget |
|---|---|
| Vessel Type | Semi-Closed Aquaculture Facility |
| Shipowner | Nordlaks |
| Year Built | 2025 |
| Location | Sørvika, Hadsel |
| Shipyard | GEMAK |
| Outer Diameter | 78.0 m |
| Inner Diameter | 60.0 m |
| Operating Draught | 30.6 m |
| Production Volume | 86,700 m³ |
| Maximum Biomass | 3,120 t |
| Protected Depth | Approx. 20 m |
| Classification society | DNV |
Design focus
01
Semi-Closed Production
Walls and screening are developed to provide greater control over the water environment surrounding the fish.
02
Biology and Construction
Production volume, biomass and protected depth are considered together with strength, stability and operational requirements.
03
Escape Prevention
A stronger and more controlled structure is designed to reduce risk and provide greater control throughout the production cycle.
04
Offshore Operations
Access, inspection and technical systems are adapted to a facility designed to function as a practical production unit at sea.
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