Page 154 - 《水产学报》2025年第11期

索安宁，等 水产学报, 2025, 49(11): 119312

Fuzzy comprehensive evaluation of marine ranching for fishery resources
conservation: a case in Miaowan marine ranching in estuary of Pearl River

1,2
1
2
3
1*
SUO Anning , LI Hanying , YUE Weizhong , JIAO Mengyu , ZHANG Li ,
2
XU Peng , DING Dewen 4
1. Marine Environmental Engineering Center, South China Sea Institute of Oceanology,
Chinese Academy of Sciences, Guangzhou 510301, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Jiangxi University of Water Resources and Electric Power, Nanchang 330099, China;
4. College of Port and Coastal Engineering, Jimei University, Xiamen 361021, China

Abstract: Marine ranching is a crucial strategy for advancing marine fisheries, as it serves the dual purposes of habitat restora-
tion and resource enhancement. However, the comprehensive evaluation of the construction effectiveness of marine ranching
represents a crucial technical challenge within the realm of marine ranching development. Evaluating the impact of marine
ranching involves a range of factors such as fishery resources, phytoplankton, zooplankton, the marine environment, and the
implementation of artificial reefs, each presenting challenges due to their complex and often non-quantifiable nature. The fuzzy
comprehensive evaluation method is a mathematical analysis approach that converts uncertain and vague elements into quantit-
ative expressions using membership functions. This method is particularly effective in handling the inherent vagueness of eval-
uation index attributes, providing a practical means for the comprehensive assessment of entities or objects influenced by mul-
tiple factors. We established an evaluative index system for marine ranching in fishery resources conservation, encompassing
four key aspects: achievement of engineering goals, impact on fishery resources conservation, influence on biological com-
munity conservation, and effect on marine environment protection. A comprehensive evaluation model for marine ranching in
fishery resources conservation was formulated. Utilizing Miaowan marine ranching in the estuary of the Pearl River as a case
study, the results indicate that the conservation of fishery resources through marine ranching in Miaowan is favorable, with an
evaluative value of 0.7462. Notably, the achievement of engineering goals contributes 38.95%, the impact on fishery resources
conservation contributes 29.91%, while the effect on biological community conservation and marine environment protection
account for 18.75% and 12.39%, respectively. The proposed index system and methodologies in this study are comprehensive
and practicable, offering feasible means of index acquisition with clear and interpretable results. This research presents tech-
nical approaches for the comprehensive evaluation of marine ranching in fishery resource conservation, and the application of
these methods is anticipated to enhance the management efficacy of marine ranching for fishery resource conservation.
Key words: marine ranching; fishery resources conservation; effect evaluation; fuzzy comprehensive evaluation; estuary of
Pearl River
Corresponding author: YUE Weizhong. E-mail: yueweizhong@scsio.ac.cn
Funding projects: Strategic Research and Consulting Project of the Chinese Academy of Engineering (2023-FJ-XZ-3);
Research on Industrial Innovation Technology for Guangdong Modern Marine Ranching (2024-MRI-001-13); Jiangxi Provin-
cial Program for Early-career Young Scientists and Technologists (20252BEJ 730288)

https://www.china-fishery.cn 中国水产学会主办 sponsored by China Society of Fisheries
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