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Long-term benefits of artificial reef modules for reef recovery in gulf of Mannar, Southeast India
Journal of Coastal Conservation ( IF 1.7 ) Pub Date : 2020-08-18 , DOI: 10.1007/s11852-020-00773-5
Kasparraj Diraviya Raj , Gilbert Mathews , Jasper Kamalam Patterson Edward

The Gulf of Mannar (GoM) in southeastern India, once well known for its rich coral reefs, has been suffering for a long time from the vagaries of unprecedented threats posed by many natural and human-induced factors. The deployment of low-tech, low-cost artificial reef (AR) modules made of ferro-cement near Vaan Island in GoM helped enhance fishery production and enrich biodiversity. These modules remain strong even at the end of 15 years and continue to provide substrata to a significantly large population of coral colonies. In 2017, the density of the coral colonies attached to the ARs was found to be as high as 25.45 numbers per module (No.module−1). Recruits from 13 genera were observed on the modules, Turbinaria (5.4 No.module−1) and Favites (4.87 No.module−1) being the dominant genera. The modules have attracted the recruits of boulder type corals, which are important for long-term ecological services. Widespread deployment of these modules would aid in reef recovery by providing suitable substrate for coral recruits.

中文翻译:

人工鱼礁模块对印度东南曼纳尔湾礁石恢复的长期好处

印度东南部的曼纳尔湾(GoM)曾经以其丰富的珊瑚礁而闻名,但长期以来一直遭受许多自然和人为因素造成的前所未见的威胁。在GoM附近Vaan岛附近部署了由低铁水泥制成的低技术,低成本人造礁(AR)模块,有助于提高渔业产量和丰富生物多样性。这些模块甚至在15年结束时仍保持强大功能,并继续为大量的珊瑚群落提供基础。在2017年,发现附着在ARs上的珊瑚殖民地的密度高达每个模块25.45个(模块编号-1)。在Turbinaria(5.4 No.module -1)和Favites上观察到来自13属的新兵(4.87 No.module -1)是主要属。这些模块吸引了巨石型珊瑚的募集,这对于长期的生态服务很重要。这些模块的广泛部署将通过为新兵提供合适的基质来帮助礁石恢复。
更新日期:2020-08-18
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