收稿日期: 2020-06-22
网络出版日期: 2021-01-12
Investigation of Anisakis larvae infection in marine fish in markets of Anshan City, Liaoning Province
Received date: 2020-06-22
Online published: 2021-01-12
2015-2018年按照全国食品安全风险监测鞍山地区的监测计划采集鞍山市四区三县市售海鱼样本,采用直接解剖法检测异尖线虫,对检出线虫进行分离鉴别。共采集海鱼样品60份12种303尾鱼,其中28份6种158尾鱼检出异尖线虫第3期幼虫。样品检出率为46.7%（28/60）,鱼种总感染率为52.2%（158/303）,平均感染度为5.99条/尾（947/158）。感染的6种鱼中,鳘鱼感染率最高,5条均为阳性,鲐鲅鱼、小黄鱼、带鱼、蓝点马鲛、秋刀鱼感染率分别为3/4、64.4%（114/177）、50.8%（32/63）、3/18、1/16;平均感染度由大到小依次为:鳘鱼8.20条/尾、小黄鱼6.28条/尾、带鱼5.67条/尾、蓝点马鲛4.84条/尾、鲐鲅鱼3.67条/尾、秋刀鱼1条/尾。2015-2018年分别采集22、10、14、14份海鱼样品,其中2015年检出率最高,为72.7%（16/22）。不同采集地点中,县级超市检出率最高,6份样品中5份为阳性,其次为城区农贸市场,检出率为46.7%（14/30）。提示鞍山市售海鱼异尖线虫的感染率较高,应加强饮食健康教育宣传。
魏卓超 , 张巍 , 邓晓丽 . 辽宁省鞍山市市售海鱼异尖线虫幼虫感染情况调查[J]. 中国寄生虫学与寄生虫病杂志, 2020 , 38(6) : 789 -791 . DOI: 10.12140/j.issn.1000-7423.2020.06.020
From 2015 to 2018, marine fish selling in market of four districts and three counties of Anshan City were sampled according to the National Food Safety Risk Monitoring Plan. Anisakis was examined by direct dissection, and isolated for species identification. A total of 303 fish from 60 samples of 12 species of marine fish were collected. Among them, Anisakis stage-3 larvae were detected in 158 fish from 28 samples of 6 species. The detection rate from the samples was 46.7% (28/60), the total positive rate among all the fish species was 52.2% (158/303), and the average infection intensity was 5.99 larvae/fish (947/158). Among the 6 species of fish infected, the infection rate was highest in Miichthys miiuy, 100% infection in all 5 fishes, followed by Pneumatophorus japonicus (3/4), Larimichthys polyactis(64.4%, 114/177), Trichiurus lepturus (50.8%, 32/63), Scomberomorus niphonius (3/18), and Cololabis saira (1/16). The infection intensity from the highest to the lowest larvae/fish was in following order: Miichthys miiuy (8.20), Larimichthys polyactis (6.28), Trichiurus lepturus (5.67), Scomberomorus niphonius (4.84), Pneumatophorus japonicus (3.67), and Cololabis saira (1). From 2015 to 2018, 22, 10, 14 and 14 marine fish samples were respectively collected, among them, the detection rate in 2015 was highest at 72.7% (16/22). In different sampling sites, the fish with highest detection rate were found from county supermarkets, showing 5 out of 6 samples being detected positive, followed by urban farm markets, with the detection rate of 46.7% (14/30). These findings indicate a considerably high infection rate of Anisakis found in marine fish from market of Anshan City, thus food health education should be strengthened.
Key words： Anisakis; Marine fish; Infection
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