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A decision support tool for parasite management in fish aquaculture
Reviews in Aquaculture ( IF 10.4 ) Pub Date : 2022-03-07 , DOI: 10.1111/raq.12668
Kate Suzanne Hutson 1, 2 , Allan James Mooney 3 , Ingo Ernst 4 , Alexander Karlis Brazenor 2, 5 , Max Scheel 1 , Javier Atalah 1
Affiliation  

A decision support tool was developed to aid management of problematic parasites in marine fish aquaculture. The tool provides biologically relevant treatment intervals to interrupt the life cycle of ectoparasitic flatworms that occur in global kingfish and amberjack (Seriola spp.) aquaculture. Temperature-dependent life cycle parameters for the ‘skin flukes’, Benedenia seriolae and Neobenedenia girellae, and the ‘gill fluke’, Zeuxapta seriolae, were derived from published data and modelled using non-linear regressions. Increasing temperatures shortened the duration of most life cycle parameters of all parasites. Salinity had no effect on the timing of life cycle parameters but limited hatching success in hypo- and hypersaline conditions. The tool, named BeNeZe after the first two letters of each parasite genera, enables rapid determination of treatment intervals for two consecutive medicinal immersion or ‘bathing’ treatments—the first to kill adult flatworms attached to fish and the second to prevent maturity of new parasite recruits. As temperature increases, the interval between treatments and the ‘window’ within which the second treatment should be applied is reduced. The tool can be used for multi-species infections. The inclusion of parasite taxonomy, biology and behaviour as part of an integrated management strategy is reviewed. Available through an open access app, BeNeZe is intended to be applied in conjunction with farm biosecurity, surveillance, management measures and recognition of independent management units. BeNeZe can be used to reduce infection burdens, improve fish welfare and production and reduce treatment number and frequency.

中文翻译:

鱼类养殖中寄生虫管理的决策支持工具

开发了一种决策支持工具,以帮助管理海水鱼类养殖中的问题寄生虫。该工具提供了与生物学相关的处理间隔,以中断在全球金鱼和琥珀鱼 ( Seriola spp.) 水产养殖中出现的外寄生扁虫的生命周期。“皮肤吸虫”、 Benedenia seriolaeNeobenedenia girellae以及“鳃吸虫”、Zeuxapta seriolae的温度相关生命周期参数, 来自已发表的数据,并使用非线性回归建模。温度升高缩短了所有寄生虫的大多数生命周期参数的持续时间。盐度对生命周期参数的时间没有影响,但在低盐和高盐条件下孵化成功有限。该工具以每个寄生虫属的前两个字母命名为 BeNeZe,可以快速确定两次连续药物浸泡或“沐浴”治疗的治疗间隔——第一次杀死附着在鱼上的成年扁虫,第二次防止新寄生虫成熟新兵。随着温度升高,治疗之间的间隔和应该进行第二次治疗的“窗口”会缩短。该工具可用于多物种感染。包括寄生虫分类学,生物学和行为作为综合管理战略的一部分进行了审查。BeNeZe 可通过开放访问应用程序获得,旨在与农场生物安全、监测、管理措施和独立管理单位的认可结合使用。BeNeZe 可用于减轻感染负担、改善鱼类福利和产量并减少治疗次数和频率。
更新日期:2022-03-07
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