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Efforts to maximise biomass by outplanting the seaweed in different seasons can affect seaweed quality. Here, we investigate the effects of outplanting time (February, April, and May) when cultivating <jats:italic>S. latissima<\/jats:italic> in the northern range of the species\u2019 distribution. We studied the quantity and quality of the seaweed biomass produced in the autumn following outplanting. Effects on quantity were evaluated as seaweed frond area, relative daily growth rate (DGR) and relative daily shedding rate (DSR). Quality was evaluated by tissue content of carbon and nitrogen compounds and number of fouling epizoans. Cultivation was successful when seedlings were outplanted in both February and April, but not in May. An earlier outplanting, in February, gave a prolonged time for grow-out at sea prior to the main recruitment event of epizoans that occurred in September, thereby earlier outplanting resulted in larger frond areas. The frond area reached in September was doubled when seedlings were outplanted in February compared to April, whereas a later outplanting in April gave a higher DGR and DSR, higher carbon content, and lower amount of fouling epizoans. The outplanting season did not affect tissue nitrate concentration or internally stored nitrate. These results show that outplanting time is an important factor to consider especially for biomass yield, but also for seaweed quality, including epibiosis of the seaweed biomass.<\/jats:p>","DOI":"10.1007\/s10811-021-02441-z","type":"journal-article","created":{"date-parts":[[2021,4,30]],"date-time":"2021-04-30T06:03:06Z","timestamp":1619762586000},"page":"2415-2431","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Effects of outplanting time on growth, shedding and quality of Saccharina latissima (Phaeophyceae) in its northern distribution range"],"prefix":"10.1007","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9558-6862","authenticated-orcid":false,"given":"Sanna","family":"Matsson","sequence":"first","affiliation":[]},{"given":"Anna","family":"Metaxas","sequence":"additional","affiliation":[]},{"given":"Silje","family":"Forbord","sequence":"additional","affiliation":[]},{"given":"Svein","family":"Kristiansen","sequence":"additional","affiliation":[]},{"given":"Aleksander","family":"Hand\u00e5","sequence":"additional","affiliation":[]},{"given":"Bodil A.","family":"Bluhm","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,4,30]]},"reference":[{"key":"2441_CR1","doi-asserted-by":"publisher","first-page":"254","DOI":"10.1111\/j.0022-3646.1983.00254.x","volume":"19","author":"SO Asare","year":"1983","unstructured":"Asare SO, Harlin MM (1983) Seasnal fluctuations in tissue nitrogen for five species of perennial macroalgae in Rhode Island sound. 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