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Mar Pollut Bull. 2014 Aug 30;85(2):797-802. doi: 10.1016/j.marpolbul.2013.11.018. Epub 2013 Dec 11.

Bioremediation and fodder potentials of two Sargassum spp. in coastal waters of Shenzhen, South China.

Author information

1
Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB) and Key Laboratory of Applied Marine Biology of Guangdong Province (LAMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
2
Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
3
Institute of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
4
Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB) and Key Laboratory of Applied Marine Biology of Guangdong Province (LAMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. Electronic address: hucq@scsio.ac.cn.

Abstract

In this study, the bioremediation potentials of two seaweeds (Sargassum hemiphyllum and S. henslowianum) against pollution in a coastal mariculture area of Shenzhen, South China, were investigated by comparing the growth, nutrient bioaccumulation capacity of plants from the seaweed bed (control site) with plants from the fish farm. Results indicated that both species are potential candidates for bioremediation in the fish farm areas in terms of their high growth rates and high bioaccumulation capacities on inorganic nutrients. Both Sargassum spp. contain high levels of crude protein (11.7-14.0%) and crude fat (2.2-2.7%), suggesting high nutritional values. The S. hemiphyllum may serve as a good aquaculture fodder with high nutritional compositions and low heavy metal contents. However, heavy metals (Cr, Pb and Cd) of S. henslowianum exceed the maximum allowable concentrations as aquatic feed, which restricts its fodder application. In general, the results of this study may contribute to the marine pollution bioremediation in the coastal areas of South China, especially in mariculture zones.

KEYWORDS:

Bioaccumulation capacity; Bioremediation; Fodder; Heavy metal; Mariculture pollution; Seaweeds

PMID:
24332756
DOI:
10.1016/j.marpolbul.2013.11.018
[Indexed for MEDLINE]

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