Progress in the protection and restoration of China’s oyster reefs: The practice of oyster reef restoration in Ruian

WU Xiaowen, XUE Feng, CAI Jingbo

Journal of Marine Sciences ›› 2025, Vol. 43 ›› Issue (3) : 73-80.

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Journal of Marine Sciences ›› 2025, Vol. 43 ›› Issue (3) : 73-80. DOI: 10.3969/j.issn.1001-909X.2025.03.008

Progress in the protection and restoration of China’s oyster reefs: The practice of oyster reef restoration in Ruian

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Abstract

Oyster reefs are one of the important coastal habitats. Over the past century, oyster reefs have been severely degraded worldwide. However, with the gradual recognition of the irreplaceable ecosystem service functions of oyster reefs, the significance of oyster reef conservation and restoration has become prominent in the global efforts to restore and protect degraded coastal ecosystems. This study systematically collects and collates the distribution information of natural oyster reefs and artificially restored oyster reefs in China, summarizes the main work and achievements in the field of oyster reef conservation and restoration in China since the beginning of this century. Combined with the author’s practical experience in the Wenzhou coastal zone protection and restoration project (oyster reef), the technical process of restoration is described in detail, with emphasis on the design and structure of the inclined support composite oyster reef and the artificial seedling attachment technology used in the restoration project. Corresponding suggestions are put forward, which can provide references for future oyster reef conservation and restoration work.

Key words

oyster reefs / conservation and restoration / restoration technologies / comprehensive management and maintenance / restoration practices

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WU Xiaowen , XUE Feng , CAI Jingbo. Progress in the protection and restoration of China’s oyster reefs: The practice of oyster reef restoration in Ruian[J]. Journal of Marine Sciences. 2025, 43(3): 73-80 https://doi.org/10.3969/j.issn.1001-909X.2025.03.008

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Abstract
为探讨底物中钙含量对牡蛎幼虫附着的诱导效应,本研究设计2因子随机区组实验,检验底物碳酸钙含量(4个处理水平:5%、20%、40%和60%)和海水中牡蛎幼虫丰度(低处理组:1 ind&middot;mL<sup>-1</sup>, 高处理组:7~8 ind&middot;mL<sup>-1</sup>)对实验底物上太平洋牡蛎(Crassostrea gigas)稚贝附着效果(密度和壳高)的影响。结果表明:钙含量和海水中牡蛎幼虫丰度均显著影响实验底物上附着牡蛎稚贝的密度(P&lt;0.05),钙含量对附着稚贝壳高的影响不显著(P&gt;0.05),幼虫丰度显著影响附着稚贝的壳高(P&lt;0.05);在相同牡蛎浮游幼虫丰度下,20%碳酸钙处理组对牡蛎幼虫附着的诱导能力最大,显著高于60%处理组(P&lt;0.05),5%和40%处理组的诱导能力介于中间;在碳酸钙含量相同情况下,高牡蛎幼虫丰度处理组中实验底物上牡蛎稚贝附着量显著高于低幼虫丰度处理组(P&lt;0.05),而平均壳高却表现为高幼虫丰度处理组&lt;低幼虫丰度处理组(P&lt;0.05)。
FAN R L, CHAO M, REN G P, et al. Effect of calcium carbonate content in substrate on spat settlement of Pacific oyster Crassostrea gigas[J]. Chinese Journal of Ecology, 2017, 36(4): 1009-1013.
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