As the most widely used method, METT is systematic and operational, and can provide a rapid assessment of protected area management effectiveness, enabling managers to quickly grasp the current situation, determine the direction of management, and provide an effective reference for policy formulation and management work (Stolton and Dudley, 2016; Stolton et al., 2019). METT assessment focuses on the management planning, input and process components of protected areas (Hockings et al., 2006). However, Chinese MPA management also focus on the basic environmental conditions at the time of establishment, the achievement of protection aims (e.g., biodiversity conservation, shoreline and habitat environmental conditions), and the economic benefits of the protected area. Therefore, this study added adaptive indicators in different components to METT ( Tables 1 , 2 ). To evaluate MPA according to local conditions, making results more robust.

In the context component, the METT assessment only includes one indicator, legal status. However, in China, all the MPAs belong to the government and are established legally, so it is impossible to distinguish on the basis of this indicator alone. Chinese protected areas are mostly established based on considerations of livelihoods (e.g., small-scale fisheries), distribution of protected animals especially endangered species, and other issues (Huang et al., 2020). Therefore, we added “human activities”, “utilization of sea area”, and “endangered species” indicators to the context component (Zhang et al., 2017). The first two indicators were assessed as “yes/no”, and the latter one was assessed by the number of endangered species.

In the planning component, the assessment indicators are mainly reflected in the objectives, legal regulations, management planning, design, monitoring and evaluation, and land-sea connectivity, and less consideration is given to special planning and management zoning. China’s national park system is characterized by conservation-oriented, scientific management, rational use, and multiple parties’ participation in implementation and management. Special projects and spatial planning, such as reclamation and other human development or human-sea conflict activities, are often conducted inside and outside protected areas. Therefore, this study added indicators for “master plan” (5- or 10-years’ planning), “special planning” (such as mariculture/research and monitoring/ecological space/urban lighting/tourism/eco-environmental protection/cultural monuments/pollution prevention, etc.) and “management unit” (single or multi-management). The functional zoning of nature reserves in China is based on the basic model of the international Man and the Biosphere Programme (MAB), the “core zone - buffer zone - experimental zone” model. Different management strategies are adopted in different functional zones to achieve the purpose of biodiversity conservation and sustainable development. The special reserves adopt the two or four-zone model of “key protection zone - moderate use zone - (ecological and resource restoration zone - reserved zone)”. The ratio of functional areas has a significant impact on the conservation effect (Liu et al., 2022). A similar zoning situation exists in China’s East China Sea protected areas (Zhang, 2020), and is often an important factor considered in implementation and management. So “functional zoning” also added in the planning component to assess functional zoning by whether it is conducted scientifically.

In the output component, METT indicators are only available for regular programs and tourism facilities, and there is a lack of consideration for environmental conditions, scientific publication, management facility construction, and resource restoration. So, we added indicators for “monitoring report”, “science education promotion”, “breeding and release”, and “scientific research platform”. For China, there is an urgent need for more scientific cooperation between protected areas and research institutions (Liu & Liu, 2015). Scientific publications are a tool to visualize research work and can be used as a criterion for the output component of protected area management activities. Therefore, the indicator of “scientific publication” was added, indicating “ the number of papers published about ecosystems within the MPA, irrespective of affiliation”. The evaluation was divided into levels according to the amount of literature on protected areas.

Protected areas and national park systems also undertake social functions and services such as ecotourism, sustainable development, restorative aquaculture, scientific publication and conservation. Therefore, we added the indicators of “marine engineering” (e.g., cross-sea bridges, undersea tunnel projects, undersea pipelines, undersea cable projects) and “development and utilization” (e.g., mariculture, marine recreation, eco-tourism) in the process section. In the input section, we added “the use of high technology”. In the results section, we added the indicators of “species increase”, “invasive creatures” and “economic transition”. All these indicators were assessed on a yes/no basis ( Supplementary Material ). Considering that data on some indicators such as internal management system, file management, and biochemical indicators are not available, they were not used as additional scores.

Two scoring approaches were adopted in this study with reference to the METT scoring method (UNEP-WCMC, 2022). The first approach was a graded scoring of “0-3” for the basic METT indicators. A score of 0 was given when the indicator was poorly or not completed, or no public information was found. A score of 1 was given when the indicator was partially completed. A score of 2 was given when the indicator was completed well. When the indicator was completed very well, it scored 3 points. The second approach was a “0/1” scoring for the METT additional points and the indicators newly added by this study. A score of 0 was given when no management activities related to the indicator were conducted. A score of 1 was given when management activities related to the indicator were conducted. Higher scores indicate good management and vice versa. Our adjusted research framework had 30 indicators with 90 score points and 32 additional items with 36 score points, totaling 126 score points.

The study areas were the national MPAs in the East China Sea, with a total area of 7343.23 km², as detailed in Table 3 . The earliest national MNR was established in Yancheng, Jiangsu Province, 39 years ago, and the last national marine park was established in Hua’ao Island, Xiangshan, Ningbo, Zhejiang Province, only six years ago. The largest area is 2,472.60 km² in the Jiangsu Yancheng Wetland Rare Bird National Nature Reserve, while the smallest area is only 3.03 km² in Fujian Chengzhou Island National Marine Park. Most of these protected areas are managed at the divisional level, with 22 protected areas having established independent management units and the remaining five protected areas being administered by the marine fisheries administration of the municipality in which they are located. The study covers five sites in Jiangsu Province, two in Shanghai, nine in Zhejiang Province, and 11 in Fujian Province.

The data for the assignment of protected areas used in this study were obtained from publicly available information on the internet (as of May 13, 2022) and databases provided by the Forestry and Grassland Bureau. The search included the official website of each protected area and its other public and external windows, the websites of local municipalities, the websites of statistical bureaus, the websites of the Ministry of Agriculture and Rural Affairs, and news websites. The literature was obtained from China National Knowledge Infrastructure (https://www.cnki.net) and Web of Science (https://www.webofscience.com/wos/alldb/basic-search), and the literature was collected by searching keywords (name of each protected area/marine park, location municipality and protected area). After screening and exclusion, a total of 2700 items of data were finally collected from 847 sources ( Table 4 ). The corresponding indicators of protected areas were assigned according to Supplementary Material , and there were no null values in the assignment results.

According to the study of factors influencing the effectiveness of protected area management (Yang et al., 2012; Xu et al., 2020), we selected 25 indicators, including resident population, primary/secondary/tertiary sector as a percentage of GDP, seafood yield et al. The data on mariculture yield, seafood yield, and GDP were from the statistical yearbook of 2016–2020 of the municipality where the protected area is located. The population and gender ratio data were from the statistical yearbook and the 7^th population census, and the data on duration of establishment, area, MPA category were from the database provided by the Forestry and Grassland Bureau. Data on management unit levels and zoning details were from publicly available information on the internet ( Table 5 ).

In this study, we added additional points(n) for context(n=3), planning(n=4), input(n=2), process(n=2), output(n=6), and outcome(n=3) components respectively, to compare the different results assessed by this study and the METT method ( Figure 1 ). The level means the number of total points in each component of the protected area, and the same total number of points will not be counted repeatedly. From the evaluation results, this study was able to produce a clearer distinction between the context, planning, input, output, and outcome components. Among them, the distinction is mainly reflected in the context and output components. In the context component, the results were increased from 1 level (METT) to 4 levels (this study), and this change was mainly caused by the “endangered species” indicator. In the output component, the results were increased from 4 levels (METT) to 8 levels (this study), and this change was mainly caused by the “ scientific publication “ indicator.

For the normalized results of the six components of the MNRs ( Figure 2A and Table 6 ), the MPA in the interval [0,0.25) accounted for 50%, 10%, 30%, 20%, 10%, and 30%, respectively. And the MPA in the interval [0.75,1] accounted for 10%, 30%, 20%, 20%, 40%, and 30%, respectively. It shows that the management measures in the context component of MNRs are clearly inadequate, while the management measures in the output component are relatively robust. For the normalized results of the six components of the MSRs ( Figure 2B and Table 6 ), the MPA in the interval [0,0.25) accounted for 11.8%, 17.7%, 35.3%, 35.3%, 15.9% and 5.9%, respectively. And the MPA in the interval [0.75,1] accounted for 41.2%, 52.9%, 11.8%, 5.9%, 29.4%, and 52.9%, respectively. It shows that the management measures in the input and process component of MNRs are clearly inadequate, while the management measures in the planning and outcome component are relatively robust.

The average score of the 27 MPAs was 76.3, of which the average score of MNR was 84.2, and the average score of MSRs was 71.6. Among the MNRs, Zhejiang Nanji Archipelago National Marine Nature Reserve scored the highest (100 points), while Shanghai Jiuduansha Wetland National Nature Reserve and Zhejiang Jiushan Archipelago Marine Ecology National Nature Reserve scored the lowest (75 points). Among the MSRs (including marine parks), Fujian Xiamen National Marine Park scored the highest (90 points), and Jiangsu Xiaoyangkou National Marine Park scored the lowest (53 points). In terms of the effectiveness of the different classifications of protection, the average score for marine parks was 71.3; for marine and coastal natural ecosystems this was 83.3; for marine biological species the average was 86.7, and for marine natural heritage and non-living resources the average was 77. Regionally, the highest average score of 84.5 was obtained for Shanghai’s protected areas (marine and coastal natural ecosystems), and the lowest average score of 72.1 was obtained for Fujian’s protected areas, as shown in Supplementary material .

According to the clustering results ( Figure 3A ), the assessment results of MNRs were divided into two classifications: MNRs I scores are high, between 88-100, with an average score of 95, those that had been established for a long time (average 33 years), and those with a better overall assessment result, with the standardized scores of the assessment components from highest to lowest: planning (86), process (81), output (75), result (71), input (58), and context (25), with differences mainly reflected in the two components of input and context. Specifically, these were Jiangsu Dafeng Milu National Nature Reserve, Shanghai Chongming Dongtan National Nature Reserve for Birds, Zhejiang Nanji Archipelago National Marine Nature Reserve, and Jiangsu Yancheng Wetland Rare Birds National Nature Reserve. MNRs II scores are lower, between 75-81, with an average score of 78, and a shorter establishment time (average 22 years). The overall assessment results being at a medium level, with the scores of the assessment components standardized from highest to lowest: planning (43), input (43), output (36), context (33), process (32), and outcome (29), and the standardized score of local residents’ participation in protected area management activities was only 22.2, with differences primarily in process and outcome. Specifically, these were Shanghai Jiuduansha Wetland National Nature Reserve, Zhejiang Jiushan Archipelago Marine Ecology National Nature Reserve, Fujian Shenhu Bay Submarine Ancient Forest Relics National Nature Reserve, Fujian Xiamen Rare Marine Species National Nature Reserve, Fujian Zhangjiang Estuary Mangrove National Nature Reserve, and Fujian Minjiang River Estuary Wetland National Nature Reserve.

According to the clustering results ( Figure 3B ), the assessment results of MSRs are divided into three classifications: MSRs I scores are high, between 75-90, with an average score of 82. That had been established for a long time (average 14 years), and the scores of the assessment components are standardized from high to low: planning (87), results (75), outputs (72), context (69), inputs (68), and process (55). The process components have low scores in indicators such as conservation demarcation, equipment maintenance, and government cooperation. Specifically, these were Jiangsu Haimen Oyster Aphid Mountain National Marine Park, Zhejiang Dongtou National Marine Park, Zhejiang Putuo Zhongjieshan Archipelago Special Marine Ecological Reserve, Zhejiang Yueqing Ximen Island Special Marine Reserve, Zhejiang Shengsi Ma’an Archipelago Special Marine Protected Area, Zhejiang Yushan Archipelago Special Marine Protected Area, Fujian Xiamen National Marine Park, and Fujian Meizhou Island National Marine Park. MSRs II scores are lower, between 59-75, with an average score of 66 and moderate establishment time (average 11 years). The standardized scores of the assessment components were, in descending order, planning (64), outcome (52), context (50), output (50), input (27), and process (25), with lower scores for the input and process components in the indicators of scientific cooperation, equipment maintenance, local residents, local communities, and water-related projects. Specifically, these were Jiangsu Haizhou Bay National Marine Park, Zhejiang Hua’ao Island National Marine Park, Zhejiang Yuhuan National Marine Park, Fujian Chengzhou Island National Marine Park, Fujian Changle National Marine Park, and Fujian Chongwu National Marine Park. MSRs III scored the lowest, between 53-56, with a mean score of 54 and a shorter establishment time (average 9 years), and the standardized scores for the assessment components, in descending order, were Context (83.3), Outcome (63), Output (25), Input (15), Process (11), and Planning (10), and only 11 scores after standardization for staff training, with differences mainly in output, input, process, and planning. These were Jiangsu Xiaoyangkou National Marine Park, Fujian Fuyao Archipelago National Marine Park, and Fujian Haitan Bay National Marine Park.

Among MNRs, general public budget revenue and duration of MPA establishment were significantly correlated with the management effectiveness of protected areas (P < 0.05), and 17 indicators were not significant with the rest of the independent variables and therefore were not included in the model ( Figure 4A and Supplementary Material ). General public budget revenue (40.2%) and duration of MPA establishment (30.04%) were the most central influencing factors leading to differences in the management effectiveness of protected areas, while the rest were, in order, GDP (18.30%), area (17.50%), protection object (13.7%), disposable income of urban permanent residents (7.15%), type of MNRs (5.52%), and container throughput (3.38%). The contribution volume analysis showed that the management effectiveness of national nature reserves in the East China Sea was positively related to the duration of MPA establishment, negatively associated with the general public budget income of the municipality where the reserves were located, and not significantly related to the remaining factors.

In MSRs, total agricultural output value and the duration of MPA establishment were significantly correlated with protected area management effectiveness (P < 0.05), and 23 indicators were not significant with the rest of the independent variables and therefore were not included in the model ( Figure 4B and Supplementary Material ). Among MSRs, total agricultural output value (29.79%) was the core influencing factor leading to differences in the management effectiveness of protected areas, followed by the duration of MPA establishment (25.92%). The analysis of the contribution of the quantity shows that the longer the duration of MPA establishment, the better the management effectiveness of MSRs, and the management effectiveness of the national MSRs in the East China Sea was positively correlated with the duration of establishment and negatively correlated with total agricultural output value in the municipality where the protected areas were located.

Instead of going to the protected areas to conduct additional questionnaires, more profound research, and interview surveys, this study conducted panel research and assignment assessment with reference to the previous meta-analysis and protected area framework construction, and thus was a tentative exploration. In fact, there are clear explanatory public availed paper for the assignment of each score in this study. So, the use of publicly available papers on the web for assessment ensures that each indicator in this study is judged in a reasoned and informed manner. In this study, the relevant online public data of MPAs include public information published by MPAs, academic papers related to MPAs, and research reports from MPA superior departments and third parties, etc. (e.g., environmental agencies).

In this study, a score of “0” means both “MPA did not do management activities related to the indicator” and “MPA did management activities related to the indicator, but no publicly available data were obtained from online for this study”. This means that if data are available through publicly available information online, they must also be available during the field research. The results of the assessment of the indicators are the same. If data are available through publicly available information online, the indicator will be assigned a score of 0. In this situation, we cannot judge whether the data will be available at the time of the field research, and then the score of the indicator assessed at the time of the field study will be greater than or equal to zero. When the study is used as a replacement for field research, the assessment results of this study may be less than or equal to the assessment results of the field research. This is a limitation of this study.

In addition, the MPA’s communications or marketing department may want the publicly available information to look good (Markantonatou et al., 2016), leading to high scoring results. This is an unavoidable situation, and it was also the case when interviews are conducted with MPA-related personnel. In fact, this is similar to the traditional assessment of the METT approach, highly dependent on MPAs managing agencies scoring through questionnaires (Dudley et al., 2007). The framework of METT itself is, unavoidably, somewhat subjective. This study builds on the METT by objectifying the data as much as possible. Therefore, when evaluated using publicly available data, it provides an objective indication of the effectiveness of MPA administration. If MPAs could publish more data on the effectiveness of their protection, it would be more beneficial for future research to provide a more comprehensive assessment of MPA management effectiveness (Cinner et al., 2020).

As a whole, the national MNRs in the East China Sea were low in the context and outcome components, high in the planning and output components, and moderate in the input and process components. According to Sun (2018) assessment of Zhejiang Nanji Archipelago National Marine Nature Reserve, the reserve is in the [0.75,1] rank, consistent with the results of this study. However, due to the different selection and focus of the two methods, the indicators that scored lower in the previous study were resource conservation effectiveness and self-sustainability, while the indicators that scored lower in this study were management costs and equipment maintenance. According to the assessment results of Wang (2018) on the national nature reserves of Fujian Xiamen Rare Marine Species National Nature Reserve, Fujian Shenhu Bay Submarine Ancient Forest Relics National Nature Reserve, Zhejiang Nanji Archipelago National Marine Nature Reserve, Zhejiang Jiushan Archipelago Marine Ecology National Nature Reserve. The scores of MNRs are generally high and at the level of good management. However, there are problems such as single-source funding channels and incomplete legislation systems, results that were consistent with the assessment results of this study.

The national MSR in the East China Sea scored low in the input, process, and output components and high in the context, planning, and outcome components. According to Zhang (2017) assessment of the national MSR on Ximen Island, Yueqing, Zhejiang, the area is in the [0.75,1] rating, and the indicators with low scores include local residents and laws and regulations, consistent with the findings of this study. According to the assessment results of Sun (2018) for the National Marine Special Protection Zone of Ma’an Island in Shengsi, Zhejiang Province and the National Marine Special Protection Zone of Zhongjiashan Island in Putuo, Zhejiang Province, they are at the rank of [0.5, 0.75) and [0.75, 1], respectively, while the Protected Area of Zhongjiashan Island in Putuo assessed in this study is at the rank of [0.5, 0.75), lower than the results of this study. The differences in the assessment results mainly came from the lack of some internal information about protected areas in this study, and more publicly available and relevant information would have brought our results closer to those of previous studies.

Previous literature has identified five characteristics of highly effective MPAs (Edgar et al., 2014), no fishing, good enforcement, longer establishment time and larger MPA area, which were also shown in this study to be important influencing factors on the effectiveness of protected area management. Except for these factors, the general public budget revenue of the municipalities was a negative factor influencing the MPA management effectiveness for MNRs. In China, the management and economic expenditures of national MPAs generally come directly from the Ministry of Natural Resources, and are theoretically less directly influenced by the municipal governments of the cities where the protected areas are located. But general public budget revenue usually reflected usually reflects the total economic volume and development priorities of a city, and this negative correlation might be due to the imbalance between conservation management and economic development caused by the increased focus on economic development in the cities where the MPAs are located. Besides, the management effectiveness of MPAs is also limited by the capacity of MPA staff and budget (Gill et al., 2017). Studies have shown that economic, social, and management activities cause changes in the management effectiveness of protected areas through complex mechanisms (Gallacher et al., 2016). Protected areas have the complexity and diversity of conservation objectives, conservation types, and protected area management units, and the imperfect digital monitoring system of protected areas leads to the lack of protected area monitoring data (Abell et al., 2007; Fu et al., 2021). The lack of communication and connectivity between protected areas has led to poor information sharing that limits the management, research, and development of MPAs (Bennett and Dearden, 2014b; Feng et al., 2021). In addition, bargaining among stakeholders may lead to asymmetries in management power and responsibility (Bennett and Dearden, 2014a; Wu et al., 2017), leaving protected area managers or local residents in a vulnerable position (Yu and Yu, 2017; Liu and Zhang, 2018). Public participation is also part of the impact management assessment (Voyer et al., 2012). The lack of legal safeguards for goal setting and implementation in different protected areas and the fact that some protected areas are hampered by inadequate funding and ecological compensation (Feng et al., 2017) have led to differentiation in management effectiveness (Hirschnitz-Garbers & Stoll-Kleemann, 2011).

According to previous studies, stakeholder involvement was identified as the most important factor influencing the success of MPAs and was considered in this study (Sylvaine et al., 2018). The planning of protected areas should take into account the diversity of nationally representative species (Xu et al., 2019) and species characteristics (Claudet et al., 2010). The inclusion of endangered species indicators in this study is also intended to provide a more robust and comprehensive consideration of the factors faced in protected area management. Hu et al. (2020) suggested that there is a need to better design and manage the MPA network in China, and the cluster analysis proposed in this study can help analyze the level and rank of protection of MPAs and facilitate the advancement of the management MPA network. The ecological aspects of protected areas, such as depth of water bodies, physicochemical properties and their biodiversity, can be added later to broaden the scope of the study (Bohorquez et al., 2021). Zhao et al. (2022) used 12 performance indicators to assess the management effectiveness of the MPA system in China, and the main issues obtained were relatively similar to the findings of this study, indicating that there are some commonalities in protected area issues that need to be to be addressed (Halpern et al., 2010). The main effectiveness of MPAs is related to MPA governance (e.g., resource use regulations and compliance) (Bennett & Dearden, 2014b).

The previous study indicated that there were different results concerning the management effectiveness of protected areas in the East China Sea under various driving forces (Watson et al., 2014). Therefore, in the following, we will classify protected areas according to their management commonalities by combining government policies, natural environment and socio-economic factors, and make recommendations for adaptive management.

For MNRs I, the general public budget revenue of the municipalities where the first classification of MNRs is located is low, but their management is more effective. The analysis found that the general public budget revenues of the management agency where MNRs I are located represent about 1% of the public budget of their cities, typically 10 times higher than those of MNRs II. They have well-managed legal provisions, as well as a robust management system and advocacy capacity. Regular contact and scientific cooperation between managers and local governments, universities, users of land and water, and tourism operators were actively carried out, and more information was publicly available. However, the protected areas are more disturbed by human activities. In summary, two recommendations are proposed: 1) Summarize successful experiences, explore the advantages of the area, increase publicity, strengthen exchanges and cooperation with other protected areas, and provide feasible recommendations for other protected areas; and 2) Prohibit or restrict human activities in sub-regions (Zhuang, 2020).

For MNRs II, although protected areas have advantages such as management plans and ecological services (Fu, 2007; Portman et al., 2016), active resource management and scientific cooperation, they suffer from insufficient public budget revenues and mutually beneficial programs, and lack of communication with stakeholders (Li & Tang, 2012; Tang et al., 2014). In summary, two recommendations are proposed: 1) A community compensation mechanism should be established to gain the support and cooperation of residents in the surrounding communities (Rosa et al., 2004; Quan et al., 2009); and 2) Communication with stakeholders and community residents should be strengthened, increasing the participation of local residents in conservation management aspects. Creating an environment where the public can express their opinions directly to specific staff (Wei et al., 2017).

For MSRs I, the total agricultural output value is inversely proportional to the management effectiveness, suggesting that the ecological environment of the protected areas is more influenced by fisheries (primary industry) and recreational fisheries (tertiary industry). The management effectiveness of MSRs I is more influenced by the duration of MPA establishment; regular monitoring reports are available, and stocking is reasonably carried out in the area. The ecological value and biodiversity are well protected, but there are still problems, such as residents’ unclear knowledge of protected area boundaries, lack of maintenance of equipment in the area, and insufficient cooperation with the government. In summary, three recommendations are proposed: 1) Vigorously carry out education; set up boundary markers and signs at the boundary, to improve stakeholders’ awareness of the boundary of the reserve and reduce human activities; 2) Improve the management system; carry out inspection of facilities and equipment, and ensure regular maintenance of equipment; and 3) Allowing local governments to take the lead (Taylor, 2000; Zhuang, 2020), establish an ecological compensation mechanism. Develop information and technical support for community residents to find enrichment projects channels and provide technical support.

For MSRs II, their resource management activities are better, but problems still exist, such as a lack of cooperation in science and education, excessive use of ecological resources by residents and communities around the protected areas, unbalanced economic and environmental development. In summary, three recommendations are proposed: 1) Strengthen scientific research activities and science education advocacy, provide research platforms for research institutes and schools. Popularize ocean-related knowledge for youth, raise citizens’ awareness of marine ecological protection, promote public participation. Including citizens in the construction of MPAs so that they can become part of the construction of MPAs (Chen et al., 2019; Zhang, 2020); 2) Considering the balance of local economic and ecological environment development (Zeng et al., 2016), that can avoid over-exploitation of the marine ecological environment by vigorously developing an aquatic product processing industry and guiding fishermen to switch to processing; and 3) Reasonably carry out implementation of marine engineering, strengthen research on the impact of large water-related projects on protected areas (Gao et al., 2007). Discussing and proposing corresponding protection countermeasures, and manage the feasibility demonstration, implementation, and post-project evaluation. The impact on the important ecological barriers of the protected area should be considered in the demonstration process.

For MSRs III, one-third (33%) do not have a particular management organization. There is a need for more staff training, high-tech equipment, and updated information. In summary, four recommendations are proposed: 1) Learning from experience to strengthen their own construction. We recommend learning from the successful experience of other well-protected areas to understand how each component is operated and controlled; 2) Strengthening the capacity building of the MPA management team. It is recommended to provide more professional training opportunities to managers, staff and patrollers, and increase the proportion of professionals in the management team (Nelson et al., 2019; Zhang, 2020), and develop training and capacity building plans for protected area staff and patrollers (Quan et al., 2009); 3) Strengthen daily monitoring, developing high technology, establish regular review mechanisms, and continuously monitor illegal fishing and illegal invasion in protected areas (Fu et al., 2021); and 4) Fulfill the obligation of information disclosure in protected areas, establish a leading group for information disclosure in protected areas. Information disclosed in accordance with the law within the responsibility of the competent authorities should be updated in a timely manner, such as institutional functions, policies and regulations, planning, operational work, and statistical data of protected areas (Wang, 2019).