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Trophic transfer of heavy metals through aquatic food web in a seagrass ecosystem of Swan Lagoon, China.
Hu, Chengye; Shui, Bonian; Yang, Xiaolong; Wang, Linlong; Dong, Jianyu; Zhang, Xiumei.
Afiliación
  • Hu C; Fishery College, Zhejiang Ocean University, Zhoushan 316022, China.
  • Shui B; Fishery College, Zhejiang Ocean University, Zhoushan 316022, China.
  • Yang X; National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China.
  • Wang L; The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China.
  • Dong J; The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China.
  • Zhang X; Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China. Electronic address: zhangxiumei@zjou.edu.cn.
Sci Total Environ ; 762: 143139, 2021 Mar 25.
Article en En | MEDLINE | ID: mdl-33138994
The Swan Lagoon is a national nature reserve and an important spawning ground in China. In this study, we evaluated the concentration of heavy metals (Cd, Cr, Cu, Pb, and Zn) in different aquatic organisms (aquatic plants, crustaceans, mollusks, and fish), in order to examine their trophic transfer in food web. The results showed that the concentrations of Cd, Cu, Pb, and Zn were considerably higher in mollusks, whereas Cr concentrations were significantly higher in aquatic plants than in mollusks, crustaceans, and fish (p < 0.01). Heavy metals exhibit different patterns of trophic transfer in food web. Cd, Cr, Cu, and Pb tended to be efficiently biodiluted with increasing trophic levels in food web (trophic magnification factor, TMF < 1; p < 0.05). The concentration of Zn increased with increasing trophic level; however, it exhibited a TMF of only 1.03, and was not significantly correlated with δ15N (p > 0.05), indicating neither biomagnification or biodilution in the food web.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Metales Pesados Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Metales Pesados Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos