Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia.
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia.
ScientificWorldJournal. 2020 Oct 21;2020:4695894. doi: 10.1155/2020/4695894. eCollection 2020.
Decommissioning of the offshore platform as an artificial reef, known as Rigs-to-Reefs (R2R), has become a sustainable approach for oil companies. The platform was reused to serve the underwater ecosystem as an artificial reef for a new marine ecosystem which helps to tackle food security issue. This paper presents the findings of the formulation of the reefing viability index to recognize an offshore region that can be used for R2R projects within the South China Sea. The combined effects of spatial data, numerical modelling, and geographic system (GIS) are proposed to study the relationship of spawning ground coral reefs, diversity, and planula larvae in the process of colonization to establish a map of the reef potential environment. Coral connectivity and spawning behaviour were studied to determine the possible source of coral seedling released during the spawning season, twice a year. A geographic reef viability index was established consisting of seven parameters which are coral larval density, pelagic larval length, sea currents, temperature, chlorophyll-a, depth, and substrate availability. The ocean hydrodynamic model was designed to resemble the pattern of larval scattering. By using the simulations and rankings, there were 95 (21%) sites which could probably be used for in situ reefing, whereas 358 (79%) sites were likely ideal for ex situ reefing. Validation of the viability index was carried out using media footage assessment of remotely operated vehicle (ROV).
将海上平台退役为人工鱼礁,即“钻井平台变礁(Rigs-to-Reefs,R2R)”,已成为石油公司的一种可持续方法。该平台被重新利用,为水下生态系统服务,成为新的海洋生态系统的人工礁,有助于解决粮食安全问题。本文介绍了制定鱼礁可行性指数的研究结果,以识别南海地区可以用于 R2R 项目的区域。本文提出了空间数据、数值建模和地理系统(GIS)的综合影响,以研究产卵场珊瑚礁、多样性和浮游幼虫在殖民过程中的关系,从而建立潜在的鱼礁环境图。研究了珊瑚的连通性和产卵行为,以确定在每年两次的产卵季节中释放珊瑚幼苗的可能来源。建立了一个地理鱼礁可行性指数,由七个参数组成,包括珊瑚幼虫密度、浮游幼虫长度、海流、温度、叶绿素-a、水深和底质可用性。设计了海洋水动力模型来模拟幼虫的扩散模式。通过使用模拟和排名,有 95 个(21%)站点可能适合原位鱼礁,而 358 个(79%)站点可能适合异位鱼礁。使用远程操作车辆(ROV)的媒体镜头评估对可行性指数进行了验证。