Impacts of polystyrene microplastics on the behavior and metabolism in a marine demersal teleost, black rockfish (Sebastes schlegelii)
文献类型： 外文期刊
作者： Yin, Liyun 1 ; Liu, Haiyan 1 ; Cui, Hongwu 3 ; Chen, Bijuan 2 ; Li, Lingli 1 ; Wu, Fan 1 ;
作者机构： 1.Hebei Normal Univ, Coll Life Sci, Shijiazhuang 050024, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266000, Shandong, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China
关键词： Microplastics; Particle size; Fish; Behavior; Metabolism; Food safety
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）
ISSN： 0304-3894
年卷期： 2019 年 380 卷
页码：
收录情况： SCI
摘要： After nano- (0.5 mu m) or micro- (15 mu m) polystyrene (PS) microplastics exposure, the behavior, metabolism and energy reserve in marine demersal fish (Sebastes schlegelii) were evaluated. The behavior of fish was accurately recorded by video behavior tracking technology. Results showed that changes in behavior (e.g. cluster, the reduction of swimming speed and range of movement) were significantly greater in 15-mu m PS-exposed fish, which may affect hunting behavior and exploration competence. Oxygen consumption and ammonia excretion of fish was significantly greater in 15-mu m PS treatment than in 0.5-mu m PS treatment, suggesting respiration and metabolism stress. Moreover, the abnormal behavior, respiration and ammonia excretion of PS-exposed fish had recovered modestly. In addition, abnormal symptoms of bile, liver and lumen of intestine were detected in 15-mu m PS exposure. Importantly, the growth and gross energy of fish were reduced in 15-mu m PS exposure than 0.5-mu m PS exposure. Both 0.5-mu m and 15-mu m PS exposures led to significantly lower protein and lipid contents, suggesting energy reserve and nutrition quality reduction of fish. Overall, microplastics had the negative impact at greater levels than nanoplastics. Altered behavior, energy reserve and nutritional quality of fish indicated the potential risk on biological functions, the development of fishery and food safety.
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