Abstract
Marine ranching plays an integral role in providing fishery resources. Given the critical importance of protecting the marine ecological system, the ecological security evaluation of marine ranching is significant. However, the existing research rarely involves marine ranching ecological security (MRES) evaluation and does not provide a complete evaluation index system. The purpose of the present study was to estimate MRES through several steps and evaluate it scientifically by fully considering the relationship between the factors. First, the evaluation index system was structured using the Driver-Pressure-State-Impact-Response (DPSIR) framework by following certain principles. Second, the study applied the Decision Making Trial and Evaluation Laboratory (DEMATEL) method and fuzzy comprehensive evaluation (FCE) method to assess MRES. Third, a case study of a marine ranching in the Shandong Province was discussed to demonstrate the applicability of the proposed method. This also illustrated the steps of the evaluation. In this case study, the result of the MRES evaluation was graded as excellent. The results demonstrate that using these methods to evaluate MRES can account for the complex relationships between the factors and the cognitive ability of the experts and thus integrate the experts’ information comprehensively, which adds to the credibility of the evaluation results.
Highlights
Shandong Blue Ocean Technology Co., Ltd. (SBOT), located in Yantai, Shandong Province, was established in December 2011
A safe marine ranching ecological system is conducive to improving the quality of resource supplies and the restoration ability of the ecological environment, helping to maximize ecological benefits while ensuring economic benefits and social benefits. e motivation of the present paper is to propose an evaluation mechanism for marine ranching ecological security (MRES) based on Decision Making Trial and Evaluation Laboratory (DEMATEL) and fuzzy comprehensive evaluation (FCE). e proposed approach focuses on solving the following aspects of these problems: e first is how to construct an evaluation index system for MRES. e marine environment is a complex and dynamic system, and MRES results from numerous interactions. us, there is a need to construct a systematic evaluation index system for evaluating it
The performance value of a particular marine ranching enterprise (MR-E) of each evaluation index represents the factor state, and the influence between the evaluation indices represents the structure of the factors. us, MRES is the overall performance of the system function
Summary
Shandong Blue Ocean Technology Co., Ltd. (SBOT), located in Yantai, Shandong Province, was established in December 2011. (SBOT), located in Yantai, Shandong Province, was established in December 2011. It has a registered capital of 80 million yuan, total assets of 411.99 million yuan, 260 employees, and 160,000 mu of confirmed sea area. SBOT is an MR-E, and its marine ranching has been made a national demonstration area. 50–100 people receive visiting and learning personnel, and more than one marine ranching adbanced techmology or equipment would be used by relevant enterprises this year. Irty-five people receive visiting and learning personnel, and three marine ranching advanced technology or equipment were used by relevant enterprises this year Three marine ranching science popularization publicity and education theme activities are held every year. irty-five people receive visiting and learning personnel, and three marine ranching advanced technology or equipment were used by relevant enterprises this year
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