Abstract：
Monitoring microplastics (MPs) in the marine environment is an ongoing process, and our understanding of their impact on marine organisms is limited. The present study evaluates the effects of ingested MPs on the marine MP pollution bioindicator fish species Mullus surmuletus. The study follows a three-fold approach to assess the impact of MPs on marine organisms by investigating: 1) the ingestion of MPs, 2) the bioaccumulation of phthalate compounds as plastic additives, and 3) the evaluation of toxicological biochemical and cellular biomarkers. Striped red mullets were sampled in the marine protected area (MPA) of the National Marine Park of Zakynthos and coastal sites with high touristic pressure in Zakynthos Island in the Ionian Sea, Greece. Fewer ingested MPs and lower phthalate concentrations were found in fish inside the MPA compared to those sampled outside the marine park. However, no relationship was found between either phthalate concentrations or biomarker levels with the ingested MPs in the red striped mullets. Biomarker levels were influenced by season and site, but no effect could be attributed to the ingested MPs. The lack of association of biomarker responses and plasticizer bioaccumulation to MP ingestion can be explained by the low number of ingested MPs in the fish from Zakynthos coastal area as MP abundance ranged from 0.15 to 0.55 items per individual fish.
摘要：
监测海洋环境中的微塑料（MP）是一个持续的过程，我们对它们对海洋生物的影响的理解是有限的。本研究评估了摄入的MPs对海洋MP污染生物指示鱼类的影响。该研究遵循三重方法，通过调查评估MPs对海洋生物的影响：1）摄入MPs，2）邻苯二甲酸酯化合物作为塑料添加剂的生物蓄积性，3)毒理学生化和细胞生物标志物的评价。在扎金索斯国家海洋公园的海洋保护区（MPA）和爱奥尼亚海的扎金索斯岛具有高旅游压力的沿海地点采样了条纹红色鱼，希腊。与海洋公园外采样的鱼类相比，MPA内的鱼类摄入的MPs较少，邻苯二甲酸酯浓度较低。然而,没有发现邻苯二甲酸酯浓度或生物标志物水平与红色条纹鱼摄入的MPs之间的关系.生物标志物水平受季节和地点的影响，但不能归因于摄入的国会议员。缺乏生物标志物反应和增塑剂生物积累与MP摄入的关联可以解释为扎金索斯沿海地区鱼类中摄入的MP数量少，因为每条鱼的MP丰度范围为0.15至0.55个。
