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船体清洗废水对海洋鱼造成严重的急性和慢性毒性-一项多代研究
Somyeong Lee1, Sang-Eun Nam1, Jee-Hyun Jung2
1Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea.
Journal of hazardous materials
|March 8, 2024
概括
船舶船体清洗废水,含有金属和防腐剂,会伤害海洋甲类动物. 即使过废水的度很低,也会在几代人中显著降低鱼的生存,生长和繁殖.
科学领域:
- 海洋生态毒理学 海洋生态毒理学
- 环境科学 环境科学
- 甲动物生物学 甲动物生物学
背景情况:
- 船舶船体清洗废水含有金属 (,铜) 和防腐剂 (铜和二).
- 甲类动物,像海洋虫Neomysis awatschensis一样,对海洋食物网至关重要.
- 了解船舶废水对生态的影响对于海洋生态系统健康至关重要.
研究的目的:
- 评估过船体清洗废水对海洋鱼Neomysis awatschensis的急性和慢性影响.
- 评估废水中存在的金属和防腐剂对甲类动物生存,生长和繁殖的影响.
主要方法:
- 鱼被暴露在两种过的废水中 (机械过和实验室过) 持续96小时 (急性暴露).
- 长期暴露涉及三代虫暴露在低度 (0.001%) 的实验室过废水中.
- 测量了生存率,生化参数 (氧化应激),养率,生长,间时间和繁殖.
主要成果:
- 亚致死性废水度导致了依赖剂量而降低鱼生存率,并增加了氧化应激.
- 机械过的废水导致的死亡率高于实验室过的废水.
- 长期暴露于低度的实验室过的废水,在三代人中显著抑制了养,生长和繁殖.
结论:
- 过的船体清洗废水对海洋甲动物构成重大风险,即使在低致命度下也是如此.
- 长期暴露于废水污染物可能会对鱼种群产生多代影响.
- 废水管理策略对于减轻对海洋无脊椎动物健康和生态系统的不利影响至关重要.
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