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首页> 外文期刊>Marine biology >Movement home range, and depredation of invasive lionfish revealed by fine-scale acoustic telemetry in the northern Gulf of Mexico
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Movement home range, and depredation of invasive lionfish revealed by fine-scale acoustic telemetry in the northern Gulf of Mexico

机译：运动家庭范围，以及墨西哥北部墨西哥州北部的精细声学遥测释放的侵袭性狮子鱼

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摘要

Fine-scale movement dynamics of adult invasive lionfish may inform the spatial scale of negative impacts to local food webs, the design and efficacy of ongoing removal efforts, and the speed at which lionfish may spread into new habitats, but have not previously been characterized. An acoustic Vemco positioning system (VPS) was used to track fine-scale (10 m) movements of adult lionfish (288-395 mm total length; n=20) tagged in situ at artificial reefs off Destin, Florida (USA). We estimated the spatial scale of movement, activity patterns, and individual home ranges, as well as whether these variables were affected by lionfish size or density. Lionfish were tracked up to 89 days and had 95% kernel utilization distribution (KUD) home ranges between 158 and 4051 m(2). Daily distances moved (range 93-807 m) exceeded previous estimates, and 40% of tagged lionfish were tracked moving to reefs up to 2 km from initial tagging locations. Movement pattern and velocity data revealed two (10%) tagged lionfish were consumed by fast-moving predators, while another two emigrated outside the array. Acoustic detection of the remaining tagged fish ended prematurely following two hurricanes that passed over the array, which may implicate the storms in displacing tagged fish, causing tag loss, or contributing to lionfish mortality. Overall, results suggest invasive lionfish have larger home ranges and display greater movement than reported previously which has important implications for artificial reef management in Florida, and elsewhere, in response to the lionfish invasion.
机译：成人侵入性狮子鱼的微尺度运动动态可以向当地食品网站，持续的去除努力的设计和功效通知空间规模，以及狮子鱼可能蔓延到新栖息地的速度，但之前没有表征。声学vemco定位系统（VPS）用于跟踪成人耳鱼（总长度288-395mm的10米）运动（总长288-395毫米; n = 20）在佛罗里达州佛罗里达州（美国）的人工礁石原位上标记。我们估计了运动，活动模式和个别家庭范围的空间尺度，以及这些变量是否受狮子尺寸或密度的影响。狮子鱼被追踪高达89天，并具有95％的核利用分布（Kud）归属范围在158到4051米（2）之间。移动的每日距离（范围为93-807米），超过先前的估计数，并且追踪40％的标记狮子鱼从初始标记位置返回最高2公里的珊瑚礁。运动模式和速度数据显示，通过快速移动的捕食者消耗了两个（10％）标记的狮子鱼，而另外两者在阵列之外移植。剩余标记的鱼的声学检测过早地结束了通过阵列的两个飓风，这可能会暗示在使标记的鱼类中造成的风暴，导致标签损失，或有助于狮子鱼死亡率。总体而言，结果表明侵入性狮子鱼有更大的家庭范围，并且显示出比以前的报道更大的运动，这对佛罗里达州和其他地方的人工礁石管理有重要意义，以应对狮子鱼入侵。

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    《Marine biology》 |2020年第8期|111.1-111.22|共22页
  • 作者

    Dahl Kristen A.; Patterson William F. III;

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    Univ Florida Fisheries & Aquat Sci Sch Forest Resources & Conservat Inst Food & Agr Sci 7922 NW 71st St Gainesville FL 32653 USA;

    Univ Florida Fisheries & Aquat Sci Sch Forest Resources & Conservat Inst Food & Agr Sci 7922 NW 71st St Gainesville FL 32653 USA;

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