Anisakid nematode larvae occur frequently in the liver of Atlantic cod, but merely few infection data from cod in waters around Greenland exist. The present study reports the occurrence of third-stage anisakid larvae in the livers of 200 Atlantic cod caught on fishing grounds along the West coast of Greenland (fjord systems of Maniitsoq) in May, June, August and September 2017. Classical and molecular helminthological techniques were used to identify the nematodes. A total of 200 cod livers were examined, and 194 were infected with third-stage nematode larvae (overall prevalence of infection 97%) with a mean intensity of 10.3 (range between 1 and 44 parasites per fish). Prevalences recorded were 96% for Anisakis simplex (s.l.), 55% for Pseudoterranova decipiens (s.l.) and 8% for Contracaecum osculatum (s.l.). Sequencing the mtDNA cox2 from 8 out of 23 these latter larvae conferred these to C. osculatum sp. B. A clear seasonal variation was observed, with a rise in A. simplex (s.l.) and P. decipiens (s.l.) occurrence in June and August and a decline in September. The study may serve as a baseline for future investigations using the three anisakids as biological indicators in Greenland waters.

Anisakid线虫幼虫经常出现在大西洋鳕鱼的肝脏中，但是在格陵兰岛附近的水域中，鳕鱼的感染数据很少。本研究报告了2017年5月，6月，8月和9月在格陵兰岛西海岸（马尼索索克峡湾系统）的渔场捕获的200只大西洋鳕鱼的肝脏中发生了第三阶段凤梨幼虫。古典和分子蠕虫学技术被用来识别线虫。共检查了200个鳕鱼肝，其中194例感染了第三级线虫幼虫（总体感染率为97％），平均强度为10.3（每条鱼1至44个寄生虫）。记录的患病率是：单生茴香（Sanis）（96 ），假伪新星（sl）（5）和5％（Pseudoterranova decipiens）（sl）和8％骨孔菌（sl）。从23个中的8个对mtDNA cox2进行测序，后两个幼虫将它们赋予C. osculatum sp.。B.观察到明显的季节性变化，在6月和8月，单枝曲霉（s 。）和假单胞菌（s。decipiens）（s1）的发生增加，而9月则有所下降。该研究可以作为未来调查的基准，使用这三种茴香作为生物指标来进行格陵兰水域的研究。