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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Milledge, John J. (2016)
Languages: English
Types: Unknown
Subjects: GE
The brown seaweed Sargassum muticum is an invasive species to the coasts of the British Isles, mainland Europe and North America. Attempts at its eradication and control have generally not been successful, although time-consuming and costly. The environmental and economic costs of biological invasions of non-native species in the early part of the last decade were estimated to be worth ~ US$ 1.4 trillion per year, globally, equivalent to 5 % of the world economy). For comparison, the costs of non-native species to the economy of Great Britain alone for 2010 was £ 1.7 billion per year with the specific cost of invasive marine species to shipping and aquaculture estimated to be in excess of £ 40 million per year. The number of inundations of beaches by seaweed has also increased dramatically over recent years with ‘seaweed tides’ causing economic disruption to tourism, aquaculture and traditional fisheries The golden-tides of related pelagic species of Sargassum are particularly problematic in the Caribbean where tourism was worth US$ 29.2 billion in on-shore spending in 2014. One of the key recommendations of the Caribbean Sea Commission in 2015 for addressing the threat of the Sargassum is to support research on commercial uses of Sargassum. Commercial exploration of this biomass for food, fuel and pharmaceutical products could encourage its harvesting and control. Sargassum has a naturally high content of antioxidants, carotenoids and phenols, including the well-known anti-cancer compound fucoxanthin, making this species a potential source of a range of pharmaceutically relevant materials. Macroalgae may also be a potential source of fuel. This paper discusses the use of Sargassum for both fuel and high value products together with the processes required to exploit it, especially on handling the discontinuity of supply.
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    • Critchley AT et al.(1986) An account of the attempted control of an introduced marine alga, Sargassum-muticum, in southern England Biological Conservation 35:313-332 Gonzalez-Lopez N et al.((2012) Hydrothermal fractionation of Sargassum muticum biomass J Appl Phycol 24:1569-1578 Liu F et al.( (2013) Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China Chin J Ocean Limnol 31:1268-1275 Rehm BHA (ed) (2009) Alginates: Biology and Applications. Microbiology Monographs, , vol 13. Springer, Heidelberg.
    • Zhao FJ et al.((2008) Genetic structure analysis of natural Sargassum muticum (Fucales, Phaeophyta) populations using RAPD and ISSR markers J Appl Phycol 20:191-198
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