WP5: Seedling, deployment and harvest technology

Existing processes and methods for seedling production and seeding of substrates will be reviewed with regard to industrial scale production.

Existing processes and methods for seedling production and seeding of substrates will be reviewed with regard to industrial scale production. The capacity and labour intensity of existing methods and technology will be evaluated to identify bottlenecks and needs for development of automation systems. Both production systems and instrumentation will be considered with emphasis on efficient production of high quality, robust seedlings. Methods for quantification of spore density and gametophyte biomass will be standardized. Strategies for seeding of substrates (ropes, sheets and nets) will be evaluated and optimized. Evaluation of techniques for deployment will consider state of the art for rope, net and sheet systems. Techniques for automatic deployment of seeded substrates to sea will be considered and suitable methods to remove the kelp from the carrier substrates will be evaluated. Designs of devices for automatic harvesting using vessels will be considered following these deliverables. Established techniques for automatic rope, fish, trawl and angle processing will be considered with regard to technology transfer.

Status

Status autumn 2019

Adaptations to next generation seaweed rope spinner for in situ use in deployment are being studied. The seeding time/speed (meter seeded rope per day) has been increased 6-10 times in MACROSEA. Work on the R&D requirements for an industrial production line for seedlings is finalized. See reports about this and automated seeding systems, and an animation of a new production concept for large scale production, SPOKe. Methods for image processing of substrate for quantification of sporophytes (Master thesis) has been developed and tested, together with spore density (Forbord et al, in press). Design elements regarding rope attachment methods have been developed, and a master thesis on a robot for automated deployment and harvesting is completed, resulting in a SPOKe demo. 

Publications:

Status autumn 2018

Adaptations to next generation seaweed rope spinner (designed at SINTEF with the Mtech company as subcontractor) for in situ use in deployment are being studied. The seeding time/speed (meter seeded rope per day) has been increased 6-10 times in MACROSEA. A report on automated seeding systems (D5.2) has been finalized (see link on www.macrosea.no).

Work on the research and development requirements for an industrial production line for seedlings is finalized, and to be reported shortly (D5.1). A new production concept for large scale production, SPOKe has been developed, and design elements regarding rope attachment methods have been further developed in 2018.

A master student will work on the robot for automated deployment and harvesting in the fall of 2018 and the spring of 2019. We have developed image analysis methods for effective counting of gametophytes on seeded material before deployment.

Figure: Machines for spinning of seedling strings (left and right), and test result (middle) We also propose a concept for Standardized Production of Kelp (SPOKe), a module-based design of circular production units, with a specialized robotic rail for automation of deployment and harvesting operations (Figure below).

Figure: Standardized Production of Kelp (SPOKe)


 

 

 

Status autumn 2017 (EN)

Seedling, deployment and harvesting technology (WP5):

Adaptations to next generation seaweed rope spinner (designed at SINTEF with the Mtech company as subcontractor) for in situ use in deployment are being studied. The seeding time/speed (meter seeded rope per day) has been increased 6-10 times in MACROSEA. Design and evaluation of a new production concept for large scale production have resulted in a design study of the MACROSEA eSpoke seaweed farm concept (see movie on www.macrosea.no) planned for a fully automated deployment and harvest operation. We have developed image analysis methods for effective counting of gametophytes on seeded material before deployment.

Workshops

A workshop on seaweed production technology (WP5 and WP6) with contributions from seaweed producers, equipment manufacturers and R&D institutes was arranged at SINTEF Sealab in Trondheim in September 2017, and

Contacts

Torfinn Solvang

Research Scientist
Name
Torfinn Solvang
Title
Research Scientist
Phone
993 57 291
Department
Environment and New Resources
Office
Trondheim
Company
SINTEF Ocean AS