Effect of chronic exposure to microplastic fibre ingestion in the sea cucumber Apostichopus japonicus

被引:33
作者
Mohsen, Mohamed [1 ,2 ,3 ,4 ,5 ,6 ,7 ]
Zhang, Libin [1 ,2 ,3 ,4 ,5 ,6 ]
Sun, Lina [1 ,2 ,3 ,4 ,5 ,6 ]
Lin, Chenggang [1 ,2 ,3 ,4 ,6 ]
Wang, Qing [5 ,8 ]
Liu, Shilin [1 ,2 ,3 ,4 ,5 ,6 ]
Sun, Jinchun [1 ,2 ,3 ,4 ,5 ,6 ]
Yang, Hongsheng [1 ,2 ,3 ,4 ,5 ,6 ]
机构
[1] Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
[2] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
[3] Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China
[4] Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
[5] Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
[6] Chinese Acad Sci, Innovat Seed Design, Wuhan, Peoples R China
[7] Al Azhar Univ, Dept Anim Prod, Fac Agr, Cairo, Egypt
[8] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res & Dev Ctr Efficient Utilizat Coastal Bioresou, Yantai 264003, Peoples R China
基金
中国国家自然科学基金;
关键词
Microplastic fibres; Toxicity mechanism; Biomarker; Antioxidant; Growth rate; Immunity; PURPLE COLOR MORPHS; IMMUNE-RESPONSE; ANTIOXIDANT CAPACITY; DISEASE RESISTANCE; OXIDATIVE STRESS; PHYSIOLOGICAL PERFORMANCE; ALKALINE-PHOSPHATASE; ARENICOLA-MARINA; ENERGY BUDGETS; GROWTH;
D O I
10.1016/j.ecoenv.2020.111794
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Microplastics (MPs) in the form of microfibres (MFs) are of great concern because of their size and increasing abundance, which increase their potential to interact with or be ingested by aquatic organisms. Although MFs are the dominant shape of MPs ingested by sea cucumbers in habitats, their effect on sea cucumbers remains unclear. This study examined the effect of dietary exposure to MFs on the growth and physiological status of both juvenile and adult Apostichopus japonicus sea cucumbers. MFs were mixed into the diet of sea cucumbers for 60 d at environmentally relevant concentrations of 0.6 MFs g(-1), 1.2 MFs g(-1) and 10 MFs g(-1). Dietary exposure to MFs, with concentrations at or above those commonly found in the habitats, did not significantly affect the growth and faecal production rate of either juvenile or adult sea cucumbers. However, a disruption in immunity indices (acid phosphatase and alkaline phosphatase activity) and oxidative stress indices (total antioxidant capacity and malondialdehyde content) was observed in juvenile and adult sea cucumbers, indicating that these indices might be useful as potential biomarkers of the exposure to MF ingestion in sea cucumbers. This study provides insights into the toxicity mechanism of MF ingestion in a commercially and ecologically important species.
引用
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页数:8
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