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A Review of Factors Affecting PIT Tag Detection Using Mobile Arrays and Use of Mobile Antennas to Detect PIT-Tagged Suckers in a Wadeable Ozark Stream
North American Journal of Fisheries Management ( IF 1.3 ) Pub Date : 2021-02-01 , DOI: 10.1002/nafm.10578
Douglas L. Zentner 1 , Skylar L. Wolf 1 , Shannon K. Brewer 2 , Daniel E. Shoup 3
Affiliation  

Advantages of PIT tags are their small size, longevity, and low cost compared to other tags. They are often used in fisheries to study movement patterns and survival or to estimate population size. However, PIT tags are limited by their short detection distance. Mobile PIT antennas may increase the utility of PIT tags in fisheries. In this study, we synthesized current detection efficiency literature for mobile PIT antennas, determined physical factors that decreased PIT tag detection probabilities for our antenna, determined factors that influenced the proportion of PIT-tagged suckers detected by our mobile antenna, and summarized techniques used to increase detections of PIT-tagged suckers using mobile antennas in a wadable stream. Our literature review indicated that tag size and orientation were the most important factors affecting detection probabilities. However, our manual testing suggested that the detection probability for our antenna was primarily influenced by water depth of the tag and distance from the antenna. Our sucker detection data showed that detection efficiency in our stream was most influenced by discharge, turbidity, and sample date. Tracking methods that include targeting key habitats (e.g., rootwads) and using natural features to congregate tagged fishes (e.g., riffles or pinch points) may increase detection efficiency in wadable streams. This is the first formal review of factors affecting mobile PIT antenna detection efficiency. The published literature, combined with our study results, indicates that several factors need to be considered prior to mobile PIT antenna tracking.

中文翻译:

影响使用移动阵列检测 PIT 标签的因素回顾和使用移动天线检测可涉水 Ozark 流中 PIT 标记的吸盘

与其他标签相比,PIT 标签的优点是体积小、寿命长且成本低。它们通常用于渔业研究运动模式和生存或估计种群规模。然而,PIT 标签受其检测距离短的限制。移动 PIT 天线可能会增加 PIT 标签在渔业中的效用。在这项研究中,我们综合了当前移动 PIT 天线检测效率的文献,确定了降低我们天线 PIT 标签检测概率的物理因素,确定了影响我们的移动天线检测到的 PIT 标签吸盘比例的因素,并总结了用于使用可涉水流中的移动天线增加对 PIT 标记的吸盘的检测。我们的文献综述表明标签大小和方向是影响检测概率的最重要因素。但是,我们的手动测试表明,我们天线的检测概率主要受标签的水深和与天线的距离的影响。我们的吸盘检测数据表明,我们的流中的检测效率受排放量、浊度和采样日期的影响最大。跟踪方法包括瞄准关键栖息地(例如,rootwads)和使用自然特征聚集标记的鱼类(例如,浅滩或夹点)可以提高涉水溪流的检测效率。这是对影响移动 PIT 天线检测效率的因素的首次正式审查。已发表的文献,结合我们的研究结果,
更新日期:2021-02-01
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