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Rapid response achieves eradication – chub in Ireland

机译:快速反应实现了根除–爱尔兰的突如其来

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Rapid reaction to the initial discovery of invasive alien species (IAS) is key to eradication, but this is often frustrated by lackof resources and coordinated actions. However, examples of successful eradications may encourage and empower others tofollow. Chub (Squalius cephalus) were illegally introduced into the River Inny in Ireland in the late 1990s or early 2000s,reputedly by anglers. The habitat in this river is favourable for chub and, should this species establish, it would likely competewith the indigenous fish communities and impact on other flora and fauna. Central Fisheries Board (now Inland FisheriesIreland) coordinated chub removal operations and provided the necessary resources (manpower and equipment) to effectivelyremove chub from this large river. Three electric fishing crews supported by two tank boats and land-based personnel wererequired in each operation to effectively remove the chub. These crews worked on this task each year between 2006 and 2013.Between 2006 and 2008, 24 adult and two juvenile chub were removed and euthanised. In 2008, two chub were radio-tagged,released back to the river and tracked monthly for 12 months. Over the next two years these “Judas” chub, and two untaggedmale chub that were located in proximity to the tagged fish, were removed from the river. Intensive electric fishing of theriver and regular contact with the local angling community between 2010 and 2017 revealed no further chub specimens.Monitoring of the fish populations in the river will continue but it is suspected that chub may have been eradicated from thisriver system and, hence, from the island of Ireland. This provides a rare case study of the potential to eradicate aquatic IASwhen rapid reaction is resourced and coordinated.
机译:对根除入侵性外来物种(IAS)的最初发现做出快速反应是根除的关键,但这通常因缺乏资源和协调行动而受挫。但是,成功根除的例子可能会鼓励并授权其他人遵循。 Chub(Squalius cephalus)在1990年代末或2000年代初被非法引入爱尔兰的Inny河,被钓鱼者驳斥。这条河的生境有利于白鲑,如果该物种得以建立,它很可能会与本​​地鱼类群落竞争并影响其他动植物。中央渔业委员会(现为内陆渔业爱尔兰)协调清除石的作业,并提供了必要的资源(人力和设备)以有效地从这条大河中清除re石。在每次操作中,需要三名由两艘油船和陆上人员支持的电动捕鱼船员,以有效地卸下the。这些工作人员每年在2006年至2013年之间完成这项任务。在2006年至2008年之间,将24名成年男子和两个少年成年男子拔除并实施了安乐死。 2008年,对两个胖胖进行了无线电标记,放回河中,并每月追踪12个月。在接下来的两年中,这些“犹大”和两个靠近标签鱼的未标记雄male被从河中移走。在2010年至2017年期间,密集的河流捕鱼活动以及与当地垂钓社区的定期接触未显示出更多的鱼标本。对河中鱼类种群的监测将继续进行,但怀疑鱼可能已从此河system系统中消除,因此,从爱尔兰岛。这为罕见的案例研究提供了潜在的根除和协调快速反应的水生IASw的潜力。

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