Patricia Bay Echosounder, Bioacoustic Deployed 2015-08-29

The ASL Zooplankton Acoustic Profiler 1007 was deployed on 2015-08-29 at Patricia Bay. Patricia Bay is located in the Saanich Inlet, on the southern tip of Vancouver Island. This device is a Echosounder, Bioacoustic. Echosounders are used to measure acoustic backscatter as a proxy for detecting zooplankton, fish, bubbles or other particles in the water-column. An echosounder has one or more transducers which emit acoustic pulses at a particular frequency. When the pulses strike animals or other objects in the water, echoes are produced, which can be detected and converted by the transducers back into electrical signals. Software is then used to determine distances, sizes, concentrations and movements of organisms and other objects in the water. It was deployed on a fixed platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 3.0 digital infrastructure, with quality assurance and derived data products following established practices.ASL浮游生物声学剖面仪1007型（ASL Zooplankton Acoustic Profiler 1007）于2015年8月29日在帕特里夏湾布放。帕特里夏湾位于温哥华岛南端的萨尼奇湾（Saanich Inlet）内。 该设备为生物声学回声测深仪（Bioacoustic Echosounder）。回声测深仪通过测量声学背散射信号，作为检测水柱内浮游生物、鱼类、气泡及其他颗粒物的替代判据。 回声测深仪配备一个或多个换能器，可按特定频率发射声学脉冲；当脉冲接触水中的生物或其他物体时，会产生回波，换能器可探测该回波并将其转换为电信号。 后续通过配套软件即可测算水体中生物及其他物体的距离、尺寸、浓度与移动状态。 本次布放作业依托固定式平台完成。本批次部署获取的数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外共享；所有数据均遵循既定流程开展质量管控，并产出符合标准的衍生数据产品。