Numerous man-made structures (MMS) have been installed in various parts of the ocean (e.g. oil and gas structures, offshore wind installations). Many are now at, or nearing, the end of their intended life. Currently, we only have a limited understanding of decommissioning effects. In many locations, such as the North Sea, regulations restrict decommissioning options to complete removal, with little consideration of alternative management options might offer. To generate a reliable evidence-base to inform the decision-making processes pertaining to marine MMS management, we propose a wide-encompassing systematic map of published research on the ecosystem effects (including ecosystem services) of marine MMS while in place and following cessation of operations (i.e. including effects of alternative decommissioning options). This map is undertaken as part of the UKRI DREAMS project which aims to develop a system to show the relative effects of implementing different decommissioning strategies in the North Sea. For the purpose of this map, we will keep our focus global, in order to subsequently draw comparisons between marine regions. The proposed map will aim to answer the following two primary questions: 1. What published evidence exists for the effects of marine man-made structures while in place on the marine ecosystem? 2. What published evidence exists for the effects of the decommissioning of marine man-made structures on the marine ecosystem? The map will follow the Collaboration for Environmental Evidence Guidelines and Standards for Evidence Synthesis in Environmental Management. Searches will be run primarily in English in at least 13 databases and 4 websites. Returns will be screened at title/abstract level and at full-text against pre-defined criteria. Relevant meta-data will be extracted for each study included. Results will be used to build a database of evidence, which will be made freely available. This map, expected to be large, will improve our knowledge of the available evidence for the ecosystem effects of MMS in the global marine environment. It will subsequently inform the production of multiple systematic-reviews and meta-analyses.

中文翻译：

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人工结构退役对全球海洋生态系统影响的证据：系统的地图方案

在海洋的各个部分都已安装了许多人造结构（MMS）（例如，石油和天然气结构，海上风能装置）。许多人已经或即将接近其预期寿命。目前，我们对退役效果的了解有限。在北海等许多地区，法规限制了退役方案以完全清除，而很少考虑可能提供的替代管理方案。为了提供可靠的证据基础，以告知有关海洋MMS管理的决策过程，我们提出了一份广泛的系统地图，其中包括已发布的和停止使用海洋MMS的生态系统影响（包括生态系统服务）的已发表研究。操作（即包括替代退役方案的影响）。该地图是UKRI DREAMS项目的一部分，该项目旨在开发一个系统，以显示在北海实施不同退役策略的相对影响。就此地图而言，我们将全球重点放在全球范围内，以便随后进行海洋区域之间的比较。拟议的地图旨在回答以下两个主要问题：1.对于海洋人造结构对海洋生态系统的影响，存在哪些公开证据？2.对于海洋人造结构退役对海洋生态系统的影响，存在哪些公开证据？该地图将遵循《环境证据合作指南》和《环境管理中证据综合标准》。搜索将主要以英语在至少13个数据库和4个网站中进行。退货将按照标题/摘要级别和全文根据预定义的标准进行筛选。将为包括的每个研究提取相关的元数据。结果将用于建立证据数据库，该数据库将免费提供。该地图预计将很大，将提高我们对MMS在全球海洋环境中的生态系统影响的现有证据的了解。随后，它将为多个系统评价和荟萃分析提供参考。将提高我们对MMS在全球海洋环境中对生态系统影响的现有证据的知识。随后，它将为多个系统评价和荟萃分析提供参考。将提高我们对MMS在全球海洋环境中对生态系统影响的现有证据的知识。随后，它将为多个系统评价和荟萃分析提供参考。