Open-sea cultivation by transplanting young fronds of the kelp Saccharina latissima

Peteiro, César; Sánchez, Noemí; Dueñas-Liaño, Clara; Martínez, Brezo

doi:10.1007/s10811-013-0096-2

Cited by 52 publications

(44 citation statements)

References 34 publications

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“…In comparison, achieved L. digitata lengths ranging from 40 to 100 cm in Ireland in June and S. latissima lengths of 80 to 150 cm on average. In Norway, average lengths of S. latissima peaked at 60-80 cm in June (Handå et al 2013); in Denmark, average lengths reached 50 cm in June (Marinho et al 2015); and in Spain, transplanted S. latissima grew to on average 120 cm long (Peteiro and Freire 2014). Large natural variation in growth is evident across and within studies varying across time, space, species, age and cultivation methods.…”

Section: Discussionmentioning

confidence: 98%

“…The optimal harvesting period was May to early July prior to heavy biofouling with average biomass yields of combined L. digitata and S. latissima ranging from 2 to 4 kg m −1 fresh weight. In Ireland, yields ranged from 2 to 7 kg m −1 for L. digitata and 5.5 to 19 kg m −1 for S. latissima ; in Denmark, yields were 1 kg m −1 but increased to 3 kg m −1 after another year growth at sea (Marinho et al 2015); and in Spain, average yields were 7.8 kg m −1 (Peteiro and Freire 2014). S. latissima has a naturally higher growth rate, achieving greater lengths and biomass yields than L. digitata Kerrison et al 2015).…”

Section: Discussionmentioning

confidence: 99%

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Regrowth and biofouling in two species of cultivated kelp in the Shetland Islands, UK

et al. 2017

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The meristem of the kelps Laminaria digitata and Saccharina latissima is located at the base of the blade, growth can therefore continue when the distal blade is lost due to erosion or harvesting. The aim of the study was to determine the regrowth potential of cultivated kelp in the Shetland Islands (UK) to assess feasibility of harvesting twice in one growing season. Laminaria digitata and S. latissima grown on longlines at sea were sampled between March and August, and harvested either at the stipe (whole) or 10 cm above the stipe-blade transition zone (partial) May-August. Image analysis was used to estimate blade length, width, area and fouled area. S. latissima increased in length more than L. digitata between March and August, and in August, while whole S. latissima experienced a net loss in length, partially cut blades had a net increase. Whole blades significantly increased in length for both species but only partially cut S. latissima significantly regrew. In late summer, severe biofouling by tunicates made up 12 and 27% of the biomass at two sites. Interestingly, S. latissima was less fouled than L. digitata. Consequently, S. latissima shows the greatest potential for the application of partial cutting to improve cultivated biomass yields. However, the period for regrowth is limited by low yields in early spring and blade degradation in late summer. In order to optimise biomass yields, further understanding is needed on the abiotic and biotic factors that control growth and biofouling on natural and farmed seaweed.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Regrowth and biofouling in two species of cultivated kelp in the Shetland Islands, UK

et al. 2017

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“…Several studies have shown culturing algal species can be successfully performed either at sea (Edwards & Dring ; Peteiro et al . ) or in land‐based installations (Hafting et al . ; Marinho et al .…”

Section: Optimising Macroalgae In Contemporary Aquafeedsmentioning

confidence: 99%

Macroalgae as a sustainable aquafeed ingredient

Wan

Davies

Soler-Vila

et al. 2018

Reviews in Aquaculture

184

129

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Macroalgae, commonly known as seaweed, offer a novel and added-value dietary ingredient in formulated diets for fish. Production of biomass can be achieved without reliance on expensive arable land, as seaweed may be collected from coastal regions or farmed. There are three taxonomic groups represented by the term 'macroalgae': Rhodophyta (red), Chlorophyta (green) and Phaeophyta (brown). Like terrestrial plants, nutritional content in macroalgae can vary greatly amongst species, genera, divisions, seasons and locations. Aside from their basic nutritional value, seaweeds contain a number of pigments, defensive and storage compounds, and secondary metabolites that could have beneficial effects on farmed fish. This review appraises the beneficial qualities of these macroalgae compounds and their potential for exploitation in commercial finfish feeds. The current knowledge of the effects of macroalgae inclusion in finfish diets is also addressed. From these >50 fish feeding studies that were analysed, enhancing trends in fish growth, physiology, stress resistance, immune system and fillet muscle quality were reported. However, only a small fraction of algal species have so far been investigated as potential components in finfish diets, and furthermore, this review has identified a number of knowledge gaps that current research has yet to address. To conclude, an appraisal is made of the possible technologies employed to exploit seaweeds to an industrial level through stabilising the algal meal, enhancing the digestibility and functional food properties.

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“…In Europe yields of S. latissima cultivated on ropes equivalent 5.6–140 t fresh wt ha −1 yr −1 have been achieved, and a yield 20.3 kg m −2 of wet material on a 5 m diameter offshore ring in the North Sea …”

Section: Cultivationmentioning

confidence: 99%

“…51 The productivity of S. japonica cultivated on lines has been reported as equivalent to 22-30 tonnes dw ha −1 yr −1 , 15 but under experimental conditions in China yields of up to 60 t dw ha −1 yr −1 have been achieved. 8 In Europe yields of S. latissima cultivated on ropes equivalent 5.6-140 t fresh wt ha −1 yr −1 have been achieved, 62,63 and a yield 20.3 kg m −2 of wet material on a 5 m diameter offshore ring in the North Sea. 15 A yield of 30 t dw ha −1 yr −1 (3 kg m −2 yr −1 ) would appear to be a reasonable but challenging target for UK seaweed cultivation.…”

Section: Yield From Seaweed Cultivationmentioning

confidence: 99%

Potential process ‘hurdles’ in the use of macroalgae as feedstock for biofuel production in the British Isles

Milledge

Harvey

2016

J. Chem. Technol. Biotechnol.

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This review examines the potential technical and energy balance hurdles in the production of seaweed biofuel, and in particular for the MacroBioCrude processing pipeline for the sustainable manufacture of liquid hydrocarbon fuels from seaweed in the UK.The production of biofuel from seaweed is economically, energetically and technically challenging at scale. Any successful process appears to require both a method of preserving the seaweed for continuous feedstock availability and a method exploiting the entire biomass. Ensiling and gasification offer a potential solution to these two requirements. However there is need for more data particularly at a commercial scale. © 2016 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Open-sea cultivation by transplanting young fronds of the kelp Saccharina latissima

Cited by 52 publications

References 34 publications

Regrowth and biofouling in two species of cultivated kelp in the Shetland Islands, UK

Regrowth and biofouling in two species of cultivated kelp in the Shetland Islands, UK

Macroalgae as a sustainable aquafeed ingredient

Potential process ‘hurdles’ in the use of macroalgae as feedstock for biofuel production in the British Isles

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