Invaders in hot water: a simple decontamination method to prevent the accidental spread of aquatic invasive non-native species.
Invaders in hot water: a simple decontamination method to prevent the accidental spread of aquatic invasive non-native species.
复制标题
热水中的入侵者：一种简单的净化方法，可防止水生入侵非本地物种的意外扩散。
DOI：
10.1007/s10530-015-0875-6
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发表时间：
2015
影响因子：
2.9
通讯作者：
Stebbing PD
中科院分区：
文献类型：
--
作者：
Anderson LG;Dunn AM;Rosewarne PJ;Stebbing PD
水上运动设备可以作为淡水环境中引入和传播入侵性非本地物种（INNS）的媒介。为了支持在英国政府的检查清洁干燥生物安全运动下给予娱乐用水者的建议，并确保其在杀死一系列水生INNS方面的有效性，我们对七个对英国淡水构成高风险的INNS进行了生存实验。暴露于热水（45 °C，15分钟）的功效被测试为沃茨用户可以“清洁”他们的设备的方法，并且与干燥和对照组（未处理）进行比较。在处理后1小时，热水导致所有物种99%的死亡率，并且在所有时间点都比干燥更有效（1小时：χ2 = 117.24，p < 0.001; 1天χ2 = 95.68，p < 0.001; 8天χ2 = 12.16，p < 0.001和16天χ2 = 7.58，p < 0.001）。从第4天开始，干燥导致比对照（无作用）显著更高的死亡率（χ2 = 8.49，p < 0.01）。在没有热水或干燥的情况下，这些物种中有6/7存活了16天，这突出表明了良好的生物安全做法对减少意外传播风险的重要性。在另一个实验中，在40 °C下，在热水中导致美洲小龙虾（细鳞螯虾）100%死亡的最低致死温度和暴露时间被确定为5分钟。热水提供了一种简单、快速和有效的方法来清洁设备。我们建议在今后的生物安保宣传活动中倡导这一点。本文的在线版本（doi：10.1007/s10530-015-0875-6）包含补充材料，可供授权用户使用。
Watersports equipment can act as a vector for the introduction and spread of invasive non native species (INNS) in freshwater environments. To support advice given to recreational water users under the UK Government’s Check Clean Dry biosecurity campaign and ensure its effectiveness at killing a range of aquatic INNS, we conducted a survival experiment on seven INNS which pose a high risk to UK freshwaters. The efficacy of exposure to hot water (45 °C, 15 min) was tested as a method by which waters users could ‘clean’ their equipment and was compared to drying and a control group (no treatment). Hot water had caused 99 % mortality across all species 1 h after treatment and was more effective than drying at all time points (1 h: χ2 = 117.24, p < 0.001; 1 day χ2 = 95.68, p < 0.001; 8 days χ2 = 12.16, p < 0.001 and 16 days χ2 = 7.58, p < 0.001). Drying caused significantly higher mortality than the control (no action) from day 4 (χ2 = 8.49, p < 0.01) onwards. In the absence of hot water or drying, 6/7 of these species survived for 16 days, highlighting the importance of good biosecurity practice to reduce the risk of accidental spread. In an additional experiment the minimum lethal temperature and exposure time in hot water to cause 100 % mortality in American signal crayfish (Pacifastacus leniusculus), was determined to be 5 min at 40 °C. Hot water provides a simple, rapid and effective method to clean equipment. We recommend that it is advocated in future biosecurity awareness campaigns. The online version of this article (doi:10.1007/s10530-015-0875-6) contains supplementary material, which is available to authorized users.