2015_DIJLE - Acoustic telemetry data for five fish species in the Dijle river (Belgium)

This is an acoustic telemetry dataset published by the Research Institute for Nature and Forest (INBO). It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network <a href=\"https://lifewatch.be/en/fish-acoustic-receiver-network\"> (https://lifewatch.be/en/fish-acoustic-receiver-network)</a> for the project/study 2015_dijle, using VEMCO tags (V7, V13) and receivers (VR2AR, VR2W). In total 26 adult individuals of five local wild fish species (<i>Anguilla anguilla</i>, <i>Cyprinus carpio</i>, <i>Platichthys flesus</i>, <i>Rutilus rutilus</i>, <i>Silurus glanis</i>) were captured, tagged and released in 2015, to study the effect of a specific barrier on their upstream/downstream migration in the Dijle basin. Fish migrating from the sea to the Dijle river (or vice versa) are obstructed by a weir in the city of Mechelen which is designed to prevent tides from entering further inland. To mitigate this problem, fish-friendly weir management was implemented, the effect of which was measured in this study with acoustic telemetry. In 2015, 26 individuals of five fish species - European eel (<i>Anguilla anguilla</i>), common carp (<i>Cyprinus carpio</i>), flounder (<i>Platichthys flesus</i>), roach (<i>Rutilus rutilus</i>) and wels catfish (<i>Silurus glanis</i>) - were captured, tagged and tracked in the areas up- and downstream of the weir. 3 wels catfish tagged for the 2014_demer study were also detected. Results of the evaluated weir passages by fish showed that 21 of 29 fish were able to pass the weir at specific hydrological conditions and weir management options. The number of passages differed between species, but happened always in the periods that higher passage could be expected following their lifestyle. The study indicates the importance and benefits of a fish-friendly weir management. This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. The study was commissioned by the Vlaamse Waterweg NV. Data have been standardized to Darwin Core using the <a href=\"https://inbo.github.io/etn/\">etn</a> package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (<a href=\"https://lifewatch.be/etn/\">https://lifewatch.be/etn/</a>) and are available in Vermeersch et al. (2020, <a href=\"https://doi.org/10.14284/430\">https://doi.org/10.14284/430</a>).本数据集由比利时自然与森林研究所（Research Institute for Nature and Forest, INBO）发布，为声学遥测（acoustic telemetry）数据集。其包含由比利时永久声学接收网络<a href="https://lifewatch.be/en/fish-acoustic-receiver-network">https://lifewatch.be/en/fish-acoustic-receiver-network</a>为2015_dijle项目/研究采集的鱼类追踪数据，所用设备为VEMCO声标记（V7、V13型号）及接收装置（VR2AR、VR2W型号）。 2015年，研究人员共捕获、标记并放归了5种本地野生鱼类的26尾成体个体，分别为欧洲鳗鲡<i>Anguilla anguilla</i>、普通鲤鱼<i>Cyprinus carpio</i>、欧洲鲽<i>Platichthys flesus</i>、欧鳊<i>Rutilus rutilus</i>以及六须鲶<i>Silurus glanis</i>，旨在研究特定障碍物对它们在迪杰勒河流域上下游洄游的影响。 从海洋洄游至迪杰勒河或反向洄游的鱼类，会被梅赫伦市的一道拦河堰阻断——该堰的设计初衷是防止潮汐进一步侵入内陆。为缓解该问题，研究人员实施了友好型鱼类拦河堰管理方案，并通过本声学遥测研究评估其实施效果。2015年，研究人员对上述5种鱼类的26尾个体开展捕获、标记与拦河堰上下游区域的追踪工作；此外，本研究还检测到了3尾曾参与2014_demer研究的六须鲶标记个体。鱼类通过该拦河堰的监测结果显示，29尾个体中的21尾可在特定水文条件及拦河堰管理方案下完成过坝。不同物种的过坝次数存在显著差异，但均发生在符合其生活习性的高通过性时段内。本研究证实了友好型鱼类拦河堰管理方案的重要性与应用价值。 本数据集依托弗拉芒海洋科学研究所（Vlaams Instituut voor de Zee, VLIZ）与INBO提供的基础设施采集，研究工作由佛兰芒研究基金会（FWO）资助，作为比利时参与LifeWatch计划的一部分。本研究由弗拉芒水道股份公司（Vlaamse Waterweg NV）委托开展。 本数据集已通过etn工具包<a href="https://inbo.github.io/etn/">https://inbo.github.io/etn/</a>标准化为达尔文核心（Darwin Core）格式，并被下采样为每小时首次检测记录。原始数据托管于欧洲追踪网络数据平台<a href="https://lifewatch.be/etn/">https://lifewatch.be/etn/</a>，相关研究成果可参见Vermeersch等人2020年发表的文献<a href="https://doi.org/10.14284/430">https://doi.org/10.14284/430</a>。