The sea bottom of the Skagerrak Strait (North Sea) contains munitions loaded with chemical warfare agents (CWA), mostly stored in shipwrecks scuttled intentionally after the end of the World War II. The munition shells inside the wrecks are in different states of deterioration and corrosion and their environmental risk potential is unknown. The Atlantic hagfish (Myxine glutinosa), a sediment-dwelling chordate, was used as a model organism to study the potential impact of dumped CWA on the local ecosystem by using biochemical biomarkers. The hagfish were collected in 2017 and 2018 at three sampling sites: in the immediate vicinity of a wreck with CWA in the Skagerrak, a few kilometres from the wreck, and a reference site 21 km from the wreck, considered to be free of CWA. Significant differences were observed between the wreck site and the reference sites in the activities of glutathione reductase, superoxide dismutase and glutathione S-transferase, while the activity levels of catalase and acetylcholinesterase were identical at all sites. The recorded differences demonstrated negative biological effects in the hagfish sampled close to the dumped chemical munitions. Due to the limited knowledge of hagfish biology and of the extent of CWA contamination in Skagerrak, the results presented here warrant more research to further elucidate the potential environmental risks of the scuttled wrecks. The usefulness of the species as a bioindicator organism is further discussed.

Skagerrak海峡（北海）的海底装有装满化学战剂（CWA）的弹药，大部分储存在第二次世界大战结束后故意毁坏的海难中。残骸内的弹药壳处于不同的退化和腐蚀状态，其环境潜在风险未知。大西洋ha鱼（Myxine glutinosa）（一种沉积在沉积物中的碳酸盐）被用作模型生物，通过使用生化生物标记物研究倾倒的CWA对当地生态系统的潜在影响。g鱼分别于2017年和2018年在三个采样点采集：位于斯卡格勒克（Skagerrak）残骸附近的带有CWA的残骸，距残骸数公里，而距残骸21公里的参考地点被认为没有残骸。在谷胱甘肽还原酶，超氧化物歧化酶和谷胱甘肽S的活性中，在残骸位点与参考位点之间观察到显着差异。-转移酶，而过氧化氢酶和乙酰胆碱酯酶的活性水平在所有位点都相同。所记录的差异表明，在靠近倾倒化学弹药的海ha鱼中，有负面的生物学影响。由于对ka鱼生物学和Skagerrak中CWA污染程度的了解有限，此处提出的结果值得进一步研究，以进一步阐明沉船残骸的潜在环境风险。进一步讨论了该物种作为生物指示生物的有用性。