Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials
Production of sugar kelp, Saccharina latissima , has the potential of extracting nutrients and carbon from the seawater and returning it to land as a bioresource. The production thereby acts as an emission capture and utilization instrument contributing to mitigation of eutrophication and climate ch...
Published in: | Frontiers in Marine Science |
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2023
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.992179 https://www.frontiersin.org/articles/10.3389/fmars.2023.992179/full |
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crfrontiers:10.3389/fmars.2023.992179 2024-09-15T18:05:44+00:00 Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials Boderskov, Teis Rasmussen, Michael Bo Bruhn, Annette Innovationsfonden Grønt Udviklings- og Demonstrations Program 2023 http://dx.doi.org/10.3389/fmars.2023.992179 https://www.frontiersin.org/articles/10.3389/fmars.2023.992179/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.992179 2024-08-06T04:02:34Z Production of sugar kelp, Saccharina latissima , has the potential of extracting nutrients and carbon from the seawater and returning it to land as a bioresource. The production thereby acts as an emission capture and utilization instrument contributing to mitigation of eutrophication and climate change. To achieve higher biomass yields improving the effects on climate and environment, and the economic feasibility of the production, cultivation techniques need to be optimized. In Denmark so far, S. latissima production yields have been lower than yields documented from Norway and the Faroe Islands. Use of alternative cultivation infrastructure designs with a higher line density per area, and better understanding the effects of annual and seasonal variations in abiotic parameters on growth, could lead the way towards a future higher yield of the S. latissima production. In this study, S. latissima was cultivated in a Danish commercial scale cultivation site for two consecutive seasons comparing the yields of different cultivation techniques: cultivation on nets and a multi-layer single line system, while also testing the possibility of coppicing the blades instead of applying a full harvest. Biomass yields of 5.0 - 6.8 kg FW m -1 cultivation line year -1 , and 10.9 – 30.4 kg FW m -2 net structure were achieved. Biomass production, nutrient and carbon extraction potentials up to 91.3 t FW, 110 kg N, 13.1 kg P and 5.1 t C ha -1 were obtained using net cultivation systems and a 1.5 years growth period. Depth of cultivation had a significant effect on yield, but no effect on dry matter, C, N or P contents of S. latissima in a multi-layered line system. Biomass yields from the same system and site varied with a factor of four between years. The use of coppicing enabled multiple harvests of S. latissima , providing however biomass of reduced quality in the second year. This study demonstrates that the production yield of S. latissima can be increased by optimizing cultivation infrastructure, and indicates that net ... Article in Journal/Newspaper Faroe Islands Frontiers (Publisher) Frontiers in Marine Science 10 |
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Frontiers (Publisher) |
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description |
Production of sugar kelp, Saccharina latissima , has the potential of extracting nutrients and carbon from the seawater and returning it to land as a bioresource. The production thereby acts as an emission capture and utilization instrument contributing to mitigation of eutrophication and climate change. To achieve higher biomass yields improving the effects on climate and environment, and the economic feasibility of the production, cultivation techniques need to be optimized. In Denmark so far, S. latissima production yields have been lower than yields documented from Norway and the Faroe Islands. Use of alternative cultivation infrastructure designs with a higher line density per area, and better understanding the effects of annual and seasonal variations in abiotic parameters on growth, could lead the way towards a future higher yield of the S. latissima production. In this study, S. latissima was cultivated in a Danish commercial scale cultivation site for two consecutive seasons comparing the yields of different cultivation techniques: cultivation on nets and a multi-layer single line system, while also testing the possibility of coppicing the blades instead of applying a full harvest. Biomass yields of 5.0 - 6.8 kg FW m -1 cultivation line year -1 , and 10.9 – 30.4 kg FW m -2 net structure were achieved. Biomass production, nutrient and carbon extraction potentials up to 91.3 t FW, 110 kg N, 13.1 kg P and 5.1 t C ha -1 were obtained using net cultivation systems and a 1.5 years growth period. Depth of cultivation had a significant effect on yield, but no effect on dry matter, C, N or P contents of S. latissima in a multi-layered line system. Biomass yields from the same system and site varied with a factor of four between years. The use of coppicing enabled multiple harvests of S. latissima , providing however biomass of reduced quality in the second year. This study demonstrates that the production yield of S. latissima can be increased by optimizing cultivation infrastructure, and indicates that net ... |
author2 |
Innovationsfonden Grønt Udviklings- og Demonstrations Program |
format |
Article in Journal/Newspaper |
author |
Boderskov, Teis Rasmussen, Michael Bo Bruhn, Annette |
spellingShingle |
Boderskov, Teis Rasmussen, Michael Bo Bruhn, Annette Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
author_facet |
Boderskov, Teis Rasmussen, Michael Bo Bruhn, Annette |
author_sort |
Boderskov, Teis |
title |
Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
title_short |
Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
title_full |
Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
title_fullStr |
Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
title_full_unstemmed |
Upscaling cultivation of Saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
title_sort |
upscaling cultivation of saccharina latissima on net or line systems; comparing biomass yields and nutrient extraction potentials |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.992179 https://www.frontiersin.org/articles/10.3389/fmars.2023.992179/full |
genre |
Faroe Islands |
genre_facet |
Faroe Islands |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.992179 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1810443246408564736 |