标题：AZFP论文：澳大利亚潮汐能候选地点同时进行回声测深仪和ADCP测量的数据集
Abstract
Interaction uncertainties between tidal energy devices and marine animals have the potential to impede the tidal energy industry as it moves closer towards commercial-scale array installations. Developing standardised environmental impact assessment (EIA) practices would allow for potential impact concerns to the marine environment to be identified and mitigated early during project development. In an effort to help formulate a standardised EIA framework that addresses
knowledge gaps in fish-current interactions at tidal energy candidate sites, Scherelis et al. presented a case study for investigating changes in fish aggregations in response to changing environmental conditions including tidal currents at a tidal energy candidate site in Australia prior to turbine installation. Here, we present the dataset utilised for this study titled “Investigating biophysical linkages at tidal energy candidate sites: a case study for combining environmental assessment and resource characterisation”. The dataset includes tidal current information from an Acoustic Doppler Current Profiler (ADCP), volume backscattering measurements from a four-frequency biological echosounder (Acoustic Zooplankton and Fish Profiler – AZFP) as an indicator for fish biomass, and fish aggregation metrics calculated from volume backscatter in post-processing. ADCP and AZFP were installed on a bottom-mounted mooring and engaged in a concurrent sampling plan for ∼2.5 months from December 2018 to February 2019. The mooring was deployed in the Banks Strait, a tidal energy candidate site located in the northeast of Tasmania, Australia, at a location favourable for tidal turbine installations considering current speed, depth, substrate, sediment type and proximity to shore. The ADCP dataset includes current velocity and direction measurements at 1 m vertical and 1-min time intervals. The raw AZFP dataset includes volume backscattering strength collected in 4-s time intervals with a vertical resolution of 0.072 m in raw, and 0.1 m in pre-processed form. Several post-processing
steps were implemented to mitigate changes in background noise due to current speed and wind stress, and to isolate acoustic fish returns from remaining scattering sources. Once isolated, volume backscatter containing fish targets underwent post-processing to determine fish aggregation metrics including density, abundance, centre of mass, dispersion,% water column occupied, evenness, and index for aggregation. Each aggregation metric was then binned by minute matched with corresponding environmental conditions for current speed, shear, temperature, diel stage, and tidal stage. Raw and processed datasets for the AZFP and ADCP are provided. Post-processed data includes the derived fish aggregation metrics along with corresponding environmental conditions. The described datasets are freely available on the Australian Ocean Data Network (AODN).
摘要：
潮汐能装置和海洋动物之间的相互作用不确定性有可能阻碍潮汐能行业向商业规模阵列装置迈进。制定标准化的环境影响评估（EIA）实践将允许在项目开发的早期发现和缓解对海洋环境的潜在影响。为了帮助制定一个标准化的环境影响评价框架，以解决潮汐能候选地点鱼流相互作用的知识差距，Scherelis等人提出了一个案例研究，以调查在涡轮机安装之前，澳大利亚潮汐能候选地鱼群对环境条件变化的反应，包括潮汐流。在这里，我们介绍了本研究所使用的数据集，题为“调查潮汐能候选地点的生物物理联系：结合环境评估和资源特征的案例研究”。该数据集包括来自声学多普勒海流剖面仪（ADCP）的潮流信息、来自四频生物回声测深仪（声学浮游动物和鱼类剖面仪-AZFP）的体积反向散射测量值，作为鱼类生物量的指标，以及在后处理中根据体积反向散射计算的鱼类聚集指标。ADCP和AZFP安装在底部安装的系泊装置上，并从2018年12月到2019年2月进行了为期约2.5个月的同步采样计划。系泊部署在班克斯海峡，这是一个位于澳大利亚塔斯马尼亚州东北部的潮汐能候选地点，考虑到流速、深度、基质、沉积物类型和靠近海岸的位置，该地点有利于潮汐涡轮机的安装。ADCP数据集包括1米垂直和1分钟时间间隔的流速和方向测量值。原始AZFP数据集包括以4-s时间间隔收集的体积后向散射强度，原始垂直分辨率为0.072m，预处理形式为0.1m。实施了几个后处理步骤，以减轻由于流速和风应力引起的背景噪声的变化，并将声学鱼类返回与剩余散射源隔离开来。一旦被隔离，包含鱼类目标的体积反向散射就会进行后处理，以确定鱼类聚集指标，包括密度、丰度、质心、分散度、所占水柱百分比、均匀度和聚集指数。然后，根据当前速度、剪切力、温度、昼夜阶段和潮汐阶段的相应环境条件，将每个聚集指标按分钟进行分类。提供了AZFP和ADCP的原始和处理数据集。后处理数据包括导出的鱼类聚集指标以及相应的环境条件。所描述的数据集可在澳大利亚海洋数据网络（AODN）上免费获得。
关键词：AZFP 鱼类浮游动物声学剖面仪，渔业声学、浮游动物，海洋鱼类声学调查，AZFP、ADCP
