Biomanipulation impacts on per-and polyfluoroalkyl substances accumulation and trophic transfer in an eutrophic lake

Cong Wang; Yonglong Lu; Bin Sun; Meng Zhang; Ruoyu Mao; Xiaoqian Li; Shuai Song; Jixin Zhao; Mingzhao Yu; Yajuan Shi; Pei Wang

doi:10.1016/j.envint.2021.107057

Biomanipulation impacts on per-and polyfluoroalkyl substances accumulation and trophic transfer in an eutrophic lake

Environ Int. 2022 Feb:160:107057. doi: 10.1016/j.envint.2021.107057. Epub 2021 Dec 23.

Authors

Cong Wang¹, Yonglong Lu², Bin Sun¹, Meng Zhang³, Ruoyu Mao³, Xiaoqian Li³, Shuai Song³, Jixin Zhao⁴, Mingzhao Yu³, Yajuan Shi³, Pei Wang⁵

Affiliations

¹ State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Sino-Danish Center for Education and Research, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
² State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Marine Environmental Science and Key Laboratory of the Ministry of Education for Coastal Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: yllu@rcees.ac.cn.
³ State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
⁴ Bayannur Institute of Environmental Science, Bayannur 015000, China.
⁵ State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Marine Environmental Science and Key Laboratory of the Ministry of Education for Coastal Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Fujian 361102, China; University of Chinese Academy of Sciences, Beijing 100049, China.

PMID: 34953284
DOI: 10.1016/j.envint.2021.107057

Abstract

Manipulation of freshwater food web through species introduction has been used to control the increasing algae in the Wuliangsuhai Lake, which affects not only the pathways of carbon source and energy transfer, but also the transfer of contaminants through food web. Food web relationships between biomanipulation area (BMA) and non-biological manipulation area (NBMA) were investigated using stable carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope analysis. In BMA, the δ¹³C values in fish species were enriched while δ¹⁵N depleted due to the increased inter-species competition. Among the same fish species between BMA and NBMA, lower trophic levels were observed in BMA. Concentrations of target PFASs (ΣPFAS) in fish from BMA were significantly (p < 0.05) lower than those from NBMA. Whilst elevated trophic magnification factors (TMFs) of PFASs, especially for perfluoroalkyl carboxylic acids (PFCAs) with long carbon chain length (C9-10), perfluorooctane sulfonate (PFOS), and 6:2 chlorinated polyfluorinated ether sulfonate (F-53B) were exhibited in BMA. We found that biomanipulation through species introduction played an important role in control over lake eutrophication and trophic transfer patterns of PFASs in biota from the altered aquatic ecosystem.

Keywords: Accumulation; Biomanipulation; PFASs; Trophic transfer.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Ecosystem
Environmental Monitoring
Fluorocarbons* / analysis
Food Chain
Lakes
Water Pollutants, Chemical* / analysis

Substances

Fluorocarbons
Water Pollutants, Chemical