WAMSI 2 - Dredging Node - Project 4.2 - Defining Thresholds and Indicators of Coral Response to Dredging Related Pressures - WATER QUALITY, Western Australia

Data is in the form of a Microsoft Access database, showing the original data together with site information (GPS coordinates), date collected. Data is also in the form of a report, which will be a secured (printable, non-editable), searchable, Portable Document Format (PDF) showing the results of the analysesThe aim of the Western Australian Marine Science Institution (WAMSI) DREDGING SCIENCE NODE Project 4.2, was to thoroughly characterise how dredging activities altered reef water quality (i.e. total suspended solids levels (TSS), underwater light levels and photosynthetically active radiation (PAR) i.e. (light attenuation) in terms of temporal and spatial characteristics (including spectral analyses of temporal patterns) and how the nature of dredging-related turbidity events differed from natural turbidity events in terms of intensity, duration and frequency. The results are valuable for future experiments and the design of more environmentally realistic laboratory-based, ex situ studies of the effects of turbidity and light reduction on reef biota. Together with analyses of the effects of these dredging projects on the underlying reef communities (Western Australian Marine Science Institution (WAMSI) DREDGING SCIENCE NODE Project 4.6) the data is important for developing water quality thresholds for dredging projects and to improve the ability to predict and manage the impact of future projects (see Western Australian Marine Science Institution (WAMSI) DREDGING SCIENCE NODE Project 4.6)Data used to conduct these analyses was from three large captial Dredging projects conducted in the Pilbara region of Western Australia using in situ water quality instrumentation (Federal Ministerial Approval Statements: MS757, MS800, MS840, which searchable on the WA EPA website: http://www.epa.wa.gov.au). These data are available through a data sharing agreement with WAMSI, pending approval of the individual companies.本数据集以微软Access（Microsoft Access）数据库格式存储，包含原始数据、采样点位信息（GPS坐标）及采集日期。同时还将生成一份受保护的（可打印、不可编辑）、可检索的便携式文档格式（Portable Document Format，PDF）报告，呈现各项分析结果。 西澳大利亚海洋科学机构（Western Australian Marine Science Institution, WAMSI）疏浚科学节点项目4.2的研究目标，是全面表征疏浚活动如何从时空特征（包含时间模式的光谱分析）维度改变珊瑚礁水体水质，具体涵盖总悬浮固体浓度（total suspended solids, TSS）、水下光照水平及光合有效辐射（photosynthetically active radiation, PAR，即光衰减），同时对比疏浚相关浊度事件与自然浊度事件在强度、持续时长与发生频率上的差异。 该研究成果对后续实验开展，以及设计更贴合环境实际的实验室异位（ex situ）浊度与光照减弱对珊瑚礁生物群落影响研究具有重要参考价值。结合针对上述疏浚项目对底层珊瑚礁群落影响的分析（西澳大利亚海洋科学机构WAMSI疏浚科学节点项目4.6），本数据集可为制定疏浚项目水质阈值、提升对未来疏浚项目影响的预测与管理能力提供关键支撑（详见西澳大利亚海洋科学机构WAMSI疏浚科学节点项目4.6）。 本次分析所用数据取自西澳大利亚州皮尔巴拉地区开展的3个大型疏浚工程项目，采集过程采用原位水质监测仪器。相关项目的联邦部长审批文件编号为MS757、MS800、MS840，可在西澳大利亚州环境保护局（WA EPA）官网http://www.epa.wa.gov.au检索查询。本数据集需通过与WAMSI签订的数据共享协议获取，且需获得对应企业的许可后方可使用。