Effects of microplastics on juveniles of the common goby (Pomatoschistus microps): Confusion with prey, reduction of the predatory performance and efficiency, and possible influence of developmental conditions
Effects of microplastics on juveniles of the common goby (Pomatoschistus microps): Confusion with prey, reduction of the predatory performance and efficiency, and possible influence of developmental conditions
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DOI：
10.1016/j.envpol.2014.10.026
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发表时间：
2015-01-01
影响因子：
8.9
通讯作者：
Guilhermino, Lucia
中科院分区：
文献类型：
--
作者：
de Sa, Luis Carlos;Luis, Luis G.;Guilhermino, Lucia
微塑料（MP）是普遍存在的污染物，能够对生物体造成不良影响。在此对三个假设进行了检验：波氏吻虾虎鱼幼鱼能够摄入微塑料；微塑料的存在可能会降低鱼类的捕食能力和效率；发育条件可能会影响鱼类的猎物选择能力。对来自环境条件不同的两个河口（米尼奥河（M - est）和利马河（L - est），位于伊比利亚半岛西北海岸）的幼鱼进行了捕食生物测定。将聚乙烯微塑料球（3种类型）单独以及与卤虫无节幼体一起作为猎物提供。所有类型的微塑料都被摄入了，这表明它们与食物产生了混淆。在同时暴露于微塑料和卤虫的情况下，利马河河口的鱼捕食能力显著降低（65%），捕食效率（高达50%）也显著降低，而米尼奥河河口的鱼则没有，这表明发育条件可能会影响鱼类的猎物选择能力。微塑料导致的食物摄入量减少可能会降低个体和种群的适应性。（C）2014爱思唯尔有限公司。保留所有权利。
Microplastics (MP) are ubiquitous contaminants able to cause adverse effects on organisms. Three hypotheses were tested here: early Pomatoschistus microps juveniles can ingest MP; the presence of MP may reduce fish predatory performance and efficiency; developmental conditions may influence the prey selection capability of fish. Predatory bioassays were carried out with juveniles from two estuaries with differences in environmental conditions: Minho (M-est) and Lima (L-est) Rivers (NW Iberian coast). Polyethylene MP spheres (3 types) alone and in combination with Artemia nauplii were offered as prey. All the MP types were ingested, suggesting confusion with food. Under simultaneous exposure to MP and Artemia, L-est fish showed a significant reduction of the predatory performance (65%) and efficiency (up to 50%), while M-est fish did not, suggesting that developmental conditions may influence the prey selection capability of fish. The MP-induced reduction of food intake may decrease individual and population fitness. (C) 2014 Elsevier Ltd. All rights reserved.