Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima

Seaweeds are attractive as a sustainable aquaculture crop for food, feed, bioenergy and biomolecules. Further, the non-value ecosystem services of seaweed cultivation (i.e. nutrient recapture) are gaining interest as an instrument towards sustainable aquaculture and for fulfilling the aims of the EU...

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Autores principales:	A Bruhn, D Bruunshøj Tørring, M Thomsen, P Canal-Vergés, M Møller Nielsen, MB Rasmussen, K Loft Eybye, M Mørk Larsen, TJ Skovbjerg Balsby, J Kjerulf Petersen
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2016
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d73035feb9d046e6af14abf1d05739fc
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spelling	oai:doaj.org-article:d73035feb9d046e6af14abf1d05739fc2021-11-11T11:07:27ZImpact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima 1869-215X1869-753410.3354/aei00200https://doaj.org/article/d73035feb9d046e6af14abf1d05739fc2016-11-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p619-636/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Seaweeds are attractive as a sustainable aquaculture crop for food, feed, bioenergy and biomolecules. Further, the non-value ecosystem services of seaweed cultivation (i.e. nutrient recapture) are gaining interest as an instrument towards sustainable aquaculture and for fulfilling the aims of the EU Marine Strategy Framework Directive. Environmental factors determine the yield and quality of the cultivated seaweed biomass and, in return, the seaweed aquaculture affects the marine environment by nutrient assimilation. Consequently, site selection is critical for obtaining optimal biomass yield and quality and for successful bio-mitigation. In this study, 5 sites for cultivation of Saccharina latissima were selected within a eutrophic water body to guide site selection for future kelp cultivation activities. Results were coupled to marine monitoring data to explore the relationship between environmental conditions and cultivation success. The biomass yields fluctuated 10-fold between sites due to local variations in light and nutrient availability. Yields were generally low, i.e. up to 510 g fresh weight (FW) per meter seeded line; however, the dry matter contents of protein and high-value pigments were high (up to 17% protein and 0.1% fucoxanthin). Growth performance, biomass quality and bio-mitigation potential was restricted by low availability of light and bioavailable phosphorus, and biofouling through juvenile suspension feeders was a critical factor at all cultivation sites. At specific sites, the tissue metal contents (Pb and Hg) exceeded the limit values for feed or food. Our results emphasize the importance of careful site selection before establishing large-scale cultivation, and stress the challenges and benefits of kelp cultivation in eutrophic waters.A BruhnD Bruunshøj TørringM ThomsenP Canal-VergésM Møller NielsenMB RasmussenK Loft EybyeM Mørk LarsenTJ Skovbjerg BalsbyJ Kjerulf PetersenInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 619-636 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 A Bruhn D Bruunshøj Tørring M Thomsen P Canal-Vergés M Møller Nielsen MB Rasmussen K Loft Eybye M Mørk Larsen TJ Skovbjerg Balsby J Kjerulf Petersen Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
description	Seaweeds are attractive as a sustainable aquaculture crop for food, feed, bioenergy and biomolecules. Further, the non-value ecosystem services of seaweed cultivation (i.e. nutrient recapture) are gaining interest as an instrument towards sustainable aquaculture and for fulfilling the aims of the EU Marine Strategy Framework Directive. Environmental factors determine the yield and quality of the cultivated seaweed biomass and, in return, the seaweed aquaculture affects the marine environment by nutrient assimilation. Consequently, site selection is critical for obtaining optimal biomass yield and quality and for successful bio-mitigation. In this study, 5 sites for cultivation of Saccharina latissima were selected within a eutrophic water body to guide site selection for future kelp cultivation activities. Results were coupled to marine monitoring data to explore the relationship between environmental conditions and cultivation success. The biomass yields fluctuated 10-fold between sites due to local variations in light and nutrient availability. Yields were generally low, i.e. up to 510 g fresh weight (FW) per meter seeded line; however, the dry matter contents of protein and high-value pigments were high (up to 17% protein and 0.1% fucoxanthin). Growth performance, biomass quality and bio-mitigation potential was restricted by low availability of light and bioavailable phosphorus, and biofouling through juvenile suspension feeders was a critical factor at all cultivation sites. At specific sites, the tissue metal contents (Pb and Hg) exceeded the limit values for feed or food. Our results emphasize the importance of careful site selection before establishing large-scale cultivation, and stress the challenges and benefits of kelp cultivation in eutrophic waters.
format	article
author	A Bruhn D Bruunshøj Tørring M Thomsen P Canal-Vergés M Møller Nielsen MB Rasmussen K Loft Eybye M Mørk Larsen TJ Skovbjerg Balsby J Kjerulf Petersen
author_facet	A Bruhn D Bruunshøj Tørring M Thomsen P Canal-Vergés M Møller Nielsen MB Rasmussen K Loft Eybye M Mørk Larsen TJ Skovbjerg Balsby J Kjerulf Petersen
author_sort	A Bruhn
title	Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
title_short	Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
title_full	Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
title_fullStr	Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
title_full_unstemmed	Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima
title_sort	impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of saccharina latissima
publisher	Inter-Research
publishDate	2016
url	https://doaj.org/article/d73035feb9d046e6af14abf1d05739fc
work_keys_str_mv	AT abruhn impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT dbruunshøjtørring impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT mthomsen impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT pcanalverges impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT mmøllernielsen impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT mbrasmussen impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT klofteybye impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT mmørklarsen impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT tjskovbjergbalsby impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima AT jkjerulfpetersen impactofenvironmentalconditionsonbiomassyieldqualityandbiomitigationcapacityofsaccharinalatissima
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Impact of environmental conditions on biomass yield, quality, and bio-mitigation capacity of Saccharina latissima

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