Screening of seaweeds in the East China Sea as potential bio-monitors of heavy metals
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Seaweeds are good bio-monitors of heavy metal pollution and have been included in European coastal monitoring programs. However, data for seaweed species in China are scarce or missing. In this study, we explored the potential of seaweeds as bio-monitor by screening the natural occurring seaweeds in the “Kingdom of seaweed and shellfish” at Dongtou Islands, the East China Sea. Totally, 12 seaweed species were collected from six sites, with richness following the sequence of Rhodophyta > Phaeophyta > Chlorophyta. The concentration of heavy metals (Cu, Cr, Ni, Zn, Pb, Cd, As) in the seaweeds was determined, and the bioaccumulation coefficient was calculated. A combination of four seaweeds, Pachydictyon coriaceum, Gelidium divaricatum, Sargassum thunbergii, and Pterocladiella capillacea, were proposed as bio-monitors due to their high bioaccumulation capabilities of specific heavy metals in the East China Sea and hence hinted the importance of using seaweed community for monitoring of pollution rather than single species. Our results provide first-hand data for the selection of bio-monitor species for heavy metals in the East China Sea and contribute to selection of cosmopolitan bio-monitor communities over geographical large area, which will benefit the establishment of monitoring programs for coastal heavy metal contamination.
KeywordsSeaweed Heavy metal East China Sea Richness Bio-monitor Bioaccumulation coefficient
This study was supported by the National Key R and D Program of China (2016YFC1402104), the National Natural Science Foundation of China (21677122), and the International Science and Technology Cooperation Program of China (2015DFA01410). We acknowledge Mr. Junyu He, Ph.D., candidate in Zhejiang University for his assistance in drawing Fig. 4.
Conceived and designed the analysis: X.X., T.W., and Y.P. Sampled and identified the seaweed: T.W., T.D., X.X., Y.P., K.L., F.L., J.W., and Y.Y. Wrote the paper: Y.P., X.X., M.H., and T.W. All authors analyzed, interpreted the results, and edited the manuscript.
- Alhomaidan AA (2008) Accumulation of nickel by marine macroalgae from the Saudi coast of the Arabian Gulf. J Food Agric Environ 6:148–151Google Scholar
- Caixue Z, Fujin B, Xingli S, Chun-Liang C (2010) Trace elements of spring and winter macroalgae in Liusha Bay. Oceanol Limnol Sin 41:154–160 (in Chinese)Google Scholar
- Costa GB, de Felix MRL, Simioni C, Ramlov F, Oliveira ER, Pereira DT, Maraschin M, Chow F, Horta PA, Lalau CM, da Costa CH, Matias WG, Bouzon ZL, Schmidt ÉC (2016) Effects of copper and lead exposure on the ecophysiology of the brown seaweed Sargassum cymosum. Protoplasma 253:111–125CrossRefGoogle Scholar
- Ding L, Huang B, Xie Y (2011) Advances and problems with the study of marine macroalgae of China seas. Biodivers Sci 19:798–804 (in Chinese)Google Scholar
- Duan YH, Ning JS, Zhai YX, Shang DR, Zhao YF (2015) Effect of different digestion methods on the determination of inorganic elements in aquatic products by inductively coupled plasma mass spectrometry. J Food Saf QualGoogle Scholar
- FAO (2017) FAO yearbook fishery and aquaculture statistics. 2015 (Food and Agriculture Organizarion of the United Nations)Google Scholar
- Hoek CVD, Mann DG, Jahns HM (1995) Algae: an introduction to phycology. Cambridge University Press, UKGoogle Scholar
- Kumar JIN, Oommen C, Kumar RN (2009) Biosorption of heavy metals from aqueous solution by green marine macroalgae from Okha Port, Gulf of Kutch, India. Am Eurasian J Agric Environ Sci:317–323Google Scholar
- MEP (2008) Specification for offshore environmental monitoring. HJ442-2008. (Ministry of Environmental Protection of the People's Republic of China)Google Scholar
- MEP (2015) Bulletin of environment quality for coastal waters of China (Ministry of Environmental Protection of the People's Republic of China)Google Scholar
- Tamilselvan N, Hemachandran J, Thirumalai T, Sharma CV, Kannabiran K, David E (2013) Biosorption of heavy metals from aqueous solution by Gracilaria corticata varcartecala and Grateloupia lithophila. J Coast Life Med 1:102–107Google Scholar
- Tseng CK, Chang CF (1959) On the economic marine algal flora of the Yellow Sea and the East China Sea. Oceanol Limnol Sin 1:43–52Google Scholar
- Xiao X et al. (2017) Nutrient removal from Chinese coastal waters by large-scale seaweed aquaculture. Sci Rep 7Google Scholar