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Touch too much: aquatic disinfectant and steam exposure treatments can inhibit further spread of invasive bloody-red mysid shrimp Hemimysis anomala
Wetlands Ecology and Management ( IF 1.6 ) Pub Date : 2020-03-29 , DOI: 10.1007/s11273-020-09720-5
Neil E. Coughlan , Shane O’Hara , Kate Crane , Jaimie T. A. Dick , Hugh J. MacIsaac , Ross N. Cuthbert

Biosecurity protocols designed to prevent further spread of invasive alien species have become a key component of invader management strategies. However, spread-prevention of invasive peracarids is especially difficult due to ineffectiveness of detection and treatment options. For instance, bloody-red mysid shrimp, Hemimysis anomala, is a high impact ecosystem-destabilising invader, which continues to spread in both Europe and North America. Here, we examine the effectiveness of two commonly used aquatic disinfectants (Virasure®/Virkon® Aquatic), and steam treatments (≥ 100 °C) to kill H. anomala. Specimens were exposed to 1% disinfectant solutions for complete immersion or mist-spray treatments, both lasting 60 s. Steam exposures lasted for 10 or 30 s. All treatments caused 100% mortality of H. anomala. Accordingly, it appears that relatively brief exposures to disinfectant and steam treatments can curtail further H. anomala spread. Therefore, these treatments should be used to decontaminate all equipment, from wetsuits to boats. In particular, steam and disinfectant spray treatments may be useful for decontamination of large, complex equipment, such as vehicles, trailers, outboard motors, or live wells on fishing boats.

中文翻译:

接触过多:水生消毒剂和蒸汽接触治疗可抑制侵袭性血红色的米色虾半脱性虾的进一步传播

旨在防止外来入侵物种进一步扩散的生物安全规程已成为入侵者管理策略的关键组成部分。然而,由于检测和治疗选择的无效,防止侵入性peracarids的扩散特别困难。例如,血红色的虾米虾(Hemimysis anomala)是一种破坏生态系统的高影响力入侵者,并继续在欧洲和北美传播。这里,我们考察两种常用的水生消毒剂(Virasure的有效性®/卫可®水生),和蒸汽处理(≥100℃)杀死H.鲳。将标本暴露于1%的消毒剂溶液中,以进行完全浸入或雾化处理,持续60 s。蒸汽暴露持续10或30 s。所有处理均导致异常H. anomala的100%死亡率。因此,似乎相对短暂地暴露于消毒剂和蒸汽处理可以减少进一步的异常嗜血杆菌的传播。因此,应使用这些处理方法对从潜水衣到船只的所有设备进行消毒。特别地,蒸汽和消毒剂喷雾处理可用于大型复杂设备的去污,例如车辆,拖车,舷外发动机或渔船上的活井。
更新日期:2020-03-29
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