Purpose

Fish parasites can cause diseases in humans and lead to commercial losses in fisheries and aquaculture. The objectives of this study were to analyze E. ongus’s parasite fauna regarding food safety and parasite transmission risk between Epinephelus species and test whether E.ongus populations can be distinguished by their parasite community.

Methods

We studied the metazoan parasite fauna of 30 white-streaked groupers Epinephelus ongus from the Thousand Islands, Java Sea, Indonesia, and compared the parasite community with specimens from Karimunjawa archipelago, Java Sea, from a former study. We used common fish parasitological methods for fish examination and parasite calculations.

Results

We found 12 metazoan parasite species, establishing five new host and five new locality records, increasing the known parasite fauna of E. ongus by 21%. No anisakid worms infected E. ongus. All but one (trematode Gyliauchen cf. nahaensis) species have been previously reported from Epinephelus. Parasite abundance of E. ongus differed significantly between the two regions.

Conclusions

Due to a certain degree of host specificity to groupers, there is potential risk of parasite transmission from E. ongus into groupers in mariculture or surrounding fishes, which increases (sea) food security related health risks from zoonotic parasites and calls for better monitoring and management plans for E. ongus. The regional separation of the Thousand Islands and Karimunjawa with different food availability and fish ecology causes different parasite abundances, distinguishing two separate E. ongus populations by their parasite fauna.

中文翻译：

---

来自印度尼西亚爪哇千岛的白纹石斑鱼 (Epinephelus ongus) 的寄生动物群

目的

鱼类寄生虫可导致人类疾病并导致渔业和水产养殖业的商业损失。本研究的目的是分析E. ongus的寄生虫动物群，关于Epinephelus物种之间的食品安全和寄生虫传播风险，并测试是否可以通过其寄生虫群落区分E.ongus种群。

方法

我们研究了来自印度尼西亚爪哇海千岛群岛的 30 条白纹石斑鱼Epinephelus ongus的后生动物寄生虫群，并将寄生虫群落与来自爪哇海卡里蒙贾瓦群岛的标本进行了比较，该标本来自之前的一项研究。我们使用常见的鱼类寄生虫学方法进行鱼类检查和寄生虫计算。

结果

我们发现了 12 种后生动物寄生虫，建立了 5 个新宿主和 5 个新位置记录，使E. ongus的已知寄生虫动物群增加了21%。没有异尖线虫感染E. ongus。除了一种（吸虫Gyliauchen cf. nahaensis）外，其他所有物种以前都曾在石斑鱼中报道过。E. ongus 的寄生虫丰度在两个地区之间存在显着差异。

结论

由于对石斑鱼有一定程度的宿主特异性，因此存在寄生虫从E. ongus 传播到海水养殖或周围鱼类中的石斑鱼的潜在风险，这增加了人畜共患寄生虫的（海洋）食品安全相关健康风险，需要更好的监测和管理E. ongus 的计划。具有不同食物供应和鱼类生态的千岛群岛和卡里文爪哇的区域分离导致不同的寄生虫丰度，通过它们的寄生虫动物群区分两个独立的E. ongus种群。