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dc.contributor.authorForbord, Silje
dc.contributor.authorSteinhovden, Kristine
dc.contributor.authorSolvang, Torfinn
dc.contributor.authorHandå, Aleksander
dc.contributor.authorSkjermo, Jorunn
dc.identifier.citationJournal of Applied Phycology. 2019, .en_US
dc.description.abstractTo reach the goal of an industrialised macroalgae industry in Norway and other high-cost countries in the near future, a standardised seedling production method to improve quality control and predictability of cultivated biomass is essential. A total of 11 different treatments for seeding twine or rope with meiospores, gametophytes or juvenile sporophytes from the kelp Saccharina latissima were measured for growth (frond length, frond area, biomass yield and density) and protein content after 80 and 120 days at sea. Meiospore- and gametophyte-seeded twines were pre-cultivated in the hatchery for 14–42 days prior to deployment, while juvenile sporophytes of different ages were seeded on ropes directly on the day of deployment using a commercial binder to attach the seedlings. The results showed that seeding with meiospores pre-cultivated in the hatchery for 42 days (S42) before deployment gave significantly longer fronds (77.0 ± 6.7 cm) and a higher biomass yield (7.2 ± 0.1 kg m−1) at sea compared to other treatments. The poorest growth was measured for the direct-seeded sporophytes pre-cultivated in free-floating cultures for 35 days prior to deployment (D35; 34.4 ± 2.4 cm frond length and 1.6 ± 0.4 kg m−1). Image analysis was used to measure the coverage of the twine substrate before deployment, and a correlation was found between substrate coverage and frond length at sea, indicating that this can be used as a tool for quantity and quality control during the hatchery phase and before deployment. The protein content did not reveal any large differences between the treatments after 120 days of cultivation.en_US
dc.publisherSpringer Nature Switzerland AGen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectCultivation strategiesen_US
dc.subjectDirect seedingen_US
dc.subjectKelp aquacultureen_US
dc.subjectImage analysisen_US
dc.subjectOptimising seaweed hatcheryen_US
dc.subjectProtein contenten_US
dc.titleEffect of seeding methods and hatchery period on sea cultivation of Saccharina latissima (Phaeophyceae): a Norwegian case-studyen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holder© The Author(s) 2019, corrected publication 2020en_US
dc.source.journalJournal of Applied Phycologyen_US
dc.relation.projectNorges forskningsråd: 254883en_US
cristin.unitnameMiljø og nye ressurser

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal