Investigation on the efficiency of a silicone antifouling coating in controlling the adhesion and germination of Ulva prolifera micro-propagules on rafts
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Prevention of annual “green tides” caused by blooms of the green macroalga Ulva prolifera, which have occurred in the Yellow Sea since 2007, has received much attention. Increasing evidence indicates that micro-propagules on the rafts used for Porphyra yezoensis aquaculture along the coastline of Jiangsu Province in China, were the primary source of these green tides. In this study, we investigated the effectiveness of a silicone antifouling coating for preventing the adhesion and germination of U. prolifera micro-propagules on bamboo and nylon ropes, which have been used in rafts for P. yezoensis aquaculture. Our results demonstrated that a coating of silicone (Sylgard 184) containing 1.0 wt.% sodium benzoate (NaB) could reduce the adhesion rate to <5% and completely inhibited the growth of U. prolifera propagules on the coated surfaces. Coating bamboo and nylon ropes with NaB-incorporated silicone thus proved a potentially effective method for controlling the initial biomass accumulation of U. prolifera.
KeywordsUlva prolifera Green tide Silicone Sodium benzoate Biofouling
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This work was supported by the National Natural Science Foundation of China (Grant No. 41276115), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA11020302), the National Basic Research Program of China (Grant No. 2010CB428706).
- Gui T J, Wang K. 2010. The present situation and development trend of low surface matine antifouling coating (in Chinese). Modern Paint Finishing, 13: 32–35Google Scholar
- Li J, Sun L, Song X X, Yu Z M. 2015. Removal of microscopic propagule and its germination of Ulva Prolifera with modified clay (in Chinese). J Oceanol Limn, 46: 345–350Google Scholar
- Nair B. 2000. Final report on the safety assessment of benzyl alcohol, benzoic acid, and sodium benzoate. Int J Toxicol, 20: 23–50Google Scholar
- Qiao F L, Ma D Y, Zhu M Y, Li R X, Zhang J Y, Yu H J. 2008. Basic conditions of the 2008 algal blooming in the Yellow Sea and scientific response (in Chinese). Adv Mar Sci, 26: 409–410Google Scholar
- Shang Z T, Jiang M S, Pu M J. 2008. Analysisi of genera situations of laver culture in Jiangsu Province and its climatic suitability (in Chinese). J Anhui Agri Sci, 36: 5315–5319Google Scholar
- Shi H, Chen X l, Shi J G, Liu Y L, Wang L M. 2009. Incorporation of NaB and PDMS antifouling coatings (in Chinese). New Chem Mater, 37: 44–45, 82Google Scholar
- Wang X M, Wang H J, Wang L, Liu D L. 2004. Non-toxic low surface energy antifouling coatings (in Chinese). Paint Coat Ind, 34: 40–43+63Google Scholar