Abstract：
In the recent monitoring guidelines released by the Arctic Monitoring and Assessment Program\'s Litter and Microplastic Expert Group, Arctic salmonids were recommended as an important species for monitoring plastics in Arctic ecosystems, with an emphasis on aligning microplastic sampling and analysis methods in Arctic fishes. This recommendation was based on the minimal documentation of microplastics in Northern fishes, especially Arctic salmonids. In response, we worked collaboratively with local partners to quantify and characterize microplastics in Arctic char, Salvelinus alpinus, and their habitats in a commercial fishery near Iqaluktuuttiaq (Cambridge Bay), Nunavut. We sampled Arctic char, surface water, and benthic sediments within their summer foraging habitat at Palik (Byron Bay). We found microplastics in 95 % of char with an average of 26 (SD ± 19) particles per individual. On average, surface water samples had 23 (SD ± 12) particles/L and benthic sediment <1 particles/gww. This is the first documentation of plastic pollution in Arctic char and their coastal habitats. Future work should evaluate seasonal, temporal and spatial trends for long-term monitoring of microplastics in Arctic fishes and their habitats.
摘要：
在北极监测和评估计划的垃圾和微塑料专家组最近发布的监测指南中，北极鲑鱼被推荐为监测北极生态系统中塑料的重要物种，重点是调整北极鱼类的微塑料采样和分析方法。这项建议是基于北方鱼类微塑料的最低记录，尤其是北极鲑鱼。作为回应,我们与当地合作伙伴合作，量化和表征北极炭中的微塑料，Salvelinusalpinus,以及它们在Iqaluktuuttiaq（剑桥湾）附近的商业渔业中的栖息地，努纳武特.我们采样了北极炭，地表水,和底栖沉积物在Palik（拜伦湾）的夏季觅食栖息地中。我们在95％的炭中发现微塑料，每个人平均有26（SD±19）个颗粒。平均而言,地表水样品有23个（SD±12个颗粒/L，底栖沉积物<1个颗粒/gww。这是北极炭及其关键栖息地中塑料污染的第一份文件。未来的工作应该评估季节性，北极鱼类及其栖息地微塑料长期监测的时空趋势。
