使用创新技术分析三维数据的声学标记鱼的行为结果

T. Steig, S. Johnston
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引用次数: 7

摘要

声学标签已被用于监测下游迁移鲑鱼幼崽接近美国哥伦比亚河上的各种水坝的游泳模式。下游迁徙的一岁的切努克(Oncorhynchus tshawytscha), steelhead (O. mykiss), sockeye (O. nerka)和不到一岁的切努克幼崽通过手术植入了声学标签。在2005-2009年的春夏洄游期间,鱼类在接近并进入水坝的涡轮进水口、溢洪道和水面旁道入口时进行了三维跟踪。在过去的几年中,在分析方法、技术和软件方面取得了许多进展。其中一些改进包括鱼类密度算法的发展,流迹建模分析,以及三维动画程序的进步。鱼类接近涡轮进水口、溢洪道和表面旁路通道入口的三维轨迹将被呈现。鱼类通道的浓度将呈现为叠加在水坝结构上的三维鱼类密度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Behavioral results from acoustically tagged fish using innovative techniques for analyzing three-dimensional data
Acoustic tags have been used to monitor the swimming patterns of downstream migrating salmon smolts approaching various dams on the Columbia River, USA. Downstream migrating yearling chinook (Oncorhynchus tshawytscha), steelhead (O. mykiss), sockeye (O. nerka), and sub-yearling chinook smolts were surgically implanted with acoustic tags. Fish were tracked in three-dimensions as they approached and passed into the turbine intakes, spillways, and surface bypass channel entrances at the dams during the spring and summer outmigrations of 2005-2009. A number of advances in the analysis methods, techniques and software have been made over the past several years. Some of these improvements include the development of fish density algorithms, stream trace modeling analysis, and advances in three-dimensional animation programs. Three-dimensional tracks of fish approaching the turbine intakes, spillways, and surface bypass channel entrances will be presented. Concentrations of fish passage will be presented as three-dimensional fish densities superimposed over dam structures.
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