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首页> 外文期刊>North American Journal of Fisheries Management >Raft and Floating Radio Frequency Identification (RFID) Antenna Systems for Detecting and Estimating Abundance of PIT-tagged Fish in Rivers
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Raft and Floating Radio Frequency Identification (RFID) Antenna Systems for Detecting and Estimating Abundance of PIT-tagged Fish in Rivers

机译：筏式和浮动式射频识别（RFID）天线系统，用于检测和估算河流中带有PIT标签的鱼的丰度

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摘要

Portable radio frequency identification (RFID) PIT tag antenna systems are increasingly being used in studies examining aquatic animal movement, survival, and habitat use, and their design flexibility permits application in a wide variety of settings. We describe the construction, use, and performance of two portable floating RFID PIT tag antenna systems designed to detect fish that were unavailable for recapture using stationary antennas or electrofishing. A raft antenna system was designed to detect and locate PIT-tagged fish in relatively long (i.e., >= 10 km) river reaches, and consisted of two antennas: (1) a horizontal antenna (4 x 1.2 m) installed on the bottom of the raft and used to detect fish in shallower river reaches (1 m), and (2) a vertical antenna (2.7 x 1.2 m) for detecting fish in deeper pools (>= 1 m). Detection distances of the horizontal antenna were between 0.7 and 1.0 m, and detection probability was 0.32 +/- 0.02 (mean +/- SE) in a field test using rocks marked with 32-mm PIT tags. Detection probability of PIT-tagged fish in the Cache la Poudre River, Colorado, using the raft antenna system, which covered 21% of the wetted area, was 0.14 +/- 0.14. A shore-deployed floating antenna (14.6 x 0.6 m), which covered 100% of the wetted area, was designed for use by two operators for detecting and locating PIT-tagged fish in shorter (i.e., 2 km) river reaches. Detection distances of the shore-deployed floating antenna were between 0.7 and 0.8 m, and detection probabilities during field deployment in the St. Vrain River exceeded 0.52. The shore-deployed floating antenna was also used to estimate abundance of PIT-tagged fish. Results suggest that the shore-deployed floating antenna could be used as an alternative to estimating abundance using traditional sampling methods such as electrofishing.
机译：便携式射频识别（RFID）PIT标签天线系统正越来越多地用于研究水生动物运动，生存和栖息地使用的研究中，并且它们的设计灵活性允许其在各种环境中使用。我们描述了两个便携式浮动RFID PIT标签天线系统的构造，使用和性能，该系统旨在检测无法使用固定天线或电钓鱼捕获的鱼类。设计了一种筏式天线系统，用于在相对较长（即> = 10 km）的河段中检测和定位带有PIT标签的鱼，该系统由两个天线组成：（1）在底部安装水平天线（4 x 1.2 m）用来检测较浅河段中的鱼的筏子（<1 m），以及（2）垂直天线（2.7 x 1.2 m），用于检测较深池中的鱼（> = 1 m）。水平天线的检测距离在0.7到1.0 m之间，在使用标有32毫米PIT标签的岩石进行的现场测试中，检测概率为0.32 +/- 0.02（平均值+/- SE）。使用覆盖了21％湿润区域的筏式天线系统，在科罗拉多州的Cache la Poudre河中检测到带有PIT标签的鱼的概率为0.14 +/- 0.14。设计了一种岸上部署的浮动天线（14.6 x 0.6 m），覆盖了100％的湿润区域，供两名操作员用于在较短（即<2 km）河段中检测和定位带有PIT标签的鱼。岸上部署的浮动天线的检测距离在0.7到0.8 m之间，并且在圣沃伦河野外部署期间的检测概率超过0.52。岸上部署的浮动天线也被用来估计带有PIT标签的鱼的数量。结果表明，可以采用岸上部署的浮动天线代替使用传统采样方法（如电钓鱼）来估计丰度。

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