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首页> 美国卫生研究院文献>other >Jellyfish Stings Trigger Gill Disorders and Increased Mortality in Farmed Sparus aurata (Linnaeus 1758) in the Mediterranean Sea
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Jellyfish Stings Trigger Gill Disorders and Increased Mortality in Farmed Sparus aurata (Linnaeus 1758) in the Mediterranean Sea

机译：在地中海地区水母St会引发G病并导致养殖的金头a（Linnaeus1758年）死亡率增加

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摘要

Jellyfish are of particular concern for marine finfish aquaculture. In recent years repeated mass mortality episodes of farmed fish were caused by blooms of gelatinous cnidarian stingers, as a consequence of a wide range of hemolytic, cytotoxic, and neurotoxic properties of associated cnidocytes venoms. The mauve stinger jellyfish Pelagia noctiluca (Scyphozoa) has been identified as direct causative agent for several documented fish mortality events both in Northern Europe and the Mediterranean Sea aquaculture farms. We investigated the effects of P. noctiluca envenomations on the gilthead sea bream Sparus aurata by in vivo laboratory assays. Fish were incubated for 8 hours with jellyfish at 3 different densities in 300 l experimental tanks. Gill disorders were assessed by histological analyses and histopathological scoring of samples collected at time intervals from 3 hours to 4 weeks after initial exposure. Fish gills showed different extent and severity of gill lesions according to jellyfish density and incubation time, and long after the removal of jellyfish from tanks. Jellyfish envenomation elicits local and systemic inflammation reactions, histopathology and gill cell toxicity, with severe impacts on fish health. Altogether, these results shows P. noctiluca swarms may represent a high risk for Mediterranean finfish aquaculture farms, generating significant gill damage after only a few hours of contact with farmed S. aurata. Due to the growth of the aquaculture sector and the increased frequency of jellyfish blooms in the coastal waters, negative interactions between stinging jellyfish and farmed fish are likely to increase with the potential for significant economic losses.
机译：水母对于海洋有鳍鱼类的水产养殖尤为重要。近年来，由于相关的刺突细胞毒液具有广泛的溶血，细胞毒性和神经毒性特性，胶状刺胞刺痛的大量繁殖导致养殖鱼类屡次发生大规模死亡事件。在北欧和地中海水产养殖场中，淡紫色的毒刺水母夜蛾Pegasia noctiluca（Scyphozoa）被确定为几种鱼类死亡事件的直接病原体。我们通过体内实验室试验研究了夜光假单胞菌对金头鲷鲷鱼的毒害作用。将鱼与水母在300升实验罐中以3种不同密度孵育8小时。通过组织学分析和of暴露后3小时至4周的时间间隔收集的样品的组织病理学评分来评估病。根据海ly的密度和孵化时间，以及从水箱中取出海long后的较长时间，鱼表现出不同程度和严重的of虫害。水母的毒化会引起局部和全身炎症反应，组织病理学和g细胞毒性，严重影响鱼类健康。总的来说，这些结果表明，夜光假单胞菌群可能代表着地中海有鳍水产养殖场的高风险，仅与养殖的金黄色葡萄球菌接触数小时后，就造成了严重的ill损害。由于水产养殖部门的增长以及沿海水域水母开花的频率增加，刺痛的水母与养殖鱼类之间的负面互动可能会增加，并可能造成重大的经济损失。

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