University Centre South Devon, Long Road, Paignton, TQ4 7EJ, UK.
Bull Environ Contam Toxicol. 2021 Jun;106(6):910-915. doi: 10.1007/s00128-021-03129-3. Epub 2021 Feb 12.
Plastic pollution has increased dramatically worldwide and is having a detrimental effect on a variety of marine organisms. This study contributes to the existing data on the ingestion of both macroplastics and microplastics by one elasmobranch species, the small-spotted catshark (Scyliorhinus canicula), considering the occurrence in males and females. Plastics were extracted from the stomach and spiral valve of (N = 200, n = 100 females and n = 100 males) and analysed by visual observations. A total of 28 pieces of plastic were found with five pieces extracted from a single individual. Overall findings indicate that this shark species is vulnerable to some extent to plastic ingestion (6.5% frequency of occurrence), but different aspects, such as differences in plastic contamination levels of different locations and ability to regurgitate stomach content, may affect the results of similar studies.
塑料污染在全球范围内急剧增加，对多种海洋生物产生了有害影响。本研究通过对小星鲨（Scyliorhinus canicula）这一软骨鱼类的雄性和雌性个体胃和螺旋瓣膜中同时存在的大塑料和微塑料的摄入情况进行分析，为现有数据做出了贡献。从胃和螺旋瓣膜中提取塑料（N = 200，n = 100 只雌性和 n = 100 只雄性），并通过肉眼观察进行分析。共发现 28 块塑料，其中 5 块来自于单个个体。总体研究结果表明，该鲨鱼物种在某种程度上容易摄入塑料（发生频率为 6.5%），但不同方面，如不同地点的塑料污染水平差异和反刍胃内容物的能力，可能会影响类似研究的结果。
