Abstract：
The majority of research on the safety of marine edible fish has primarily focused on anisakid nematodes, neglecting the potential risks posed by other parasites, including those belonging to the family Gnathostomatidae. In Australia, there have been few reported cases of human infections with gnathostomatid parasites since 2011. However, due to the absence of a standardized diagnostic test in the country, it is believed that the actual number of infections is higher than reported. This study aimed to assess the occurrence and prevalence of infectious gnathostomatid parasites in selected commercial fish species in Australia. A total of 1947 marine fish from northern Australia, representing 9 families, 16 genera, and 30 species, were examined for gnathostomatid nematode infections. Overall, 12.3 % of the fish were found to be infected with at least one gnathostomatid larva. Among the species examined, the yellow-dabbled flounder (Branchypleura novaezeelandiae) exhibited the highest prevalence (83.3 %; n = 6) and the largest number of gnathostomatid larvae. The identification of the gnathostomatid larvae was confirmed as belonging to the genus Echinocephalus based on both morphological characteristics and sequence data. No significant correlation was observed between the prevalence, mean abundance, and mean intensity of infection with the length or weight of the examined fish species. Notably, several of the infected fish species are considered popular choices in the Australian market. Hence, it is imperative to raise awareness among relevant food safety authorities regarding the occurrence of these parasites. The findings from this study should be taken into consideration for the revision of current seafood safety protocols in the country.
摘要：
大多数关于海洋食用鱼安全性的研究主要集中在anisakid线虫上，忽视其他寄生虫带来的潜在风险，包括属于鼻科的。在澳大利亚,自2011年以来，很少有报告的人类感染食性虫寄生虫的病例。然而,由于该国缺乏标准化的诊断测试，据信，实际感染人数高于报告。这项研究旨在评估澳大利亚某些商业鱼类中传染性gnathostomatid寄生虫的发生和流行情况。总共有1947条来自澳大利亚北部的海鱼，代表9个家庭，16属，30种,检查了颌骨线虫感染。总的来说,发现12.3％的鱼感染了至少一个食性幼虫。在检查的物种中，黄色涉猎的比目鱼（Branchypleuranovaezeelandiae）的患病率最高（83.3％；n=6）和最大数量的食性幼虫。根据形态特征和序列数据，确认了gnathostomatid幼虫的鉴定属于棘头虫属。在患病率之间没有观察到显着的相关性，意味着丰富，以及受检查鱼类的长度或重量的平均感染强度。值得注意的是,几种受感染的鱼类被认为是澳大利亚市场上的热门选择。因此，必须提高有关食品安全当局对这些寄生虫发生的认识。在修订该国当前的海鲜安全协议时，应考虑这项研究的结果。
