The construction of fishing port economic zones is an important measure proposed in response to the national strategy of building a maritime power. In the face of the new situation of the development of the marine fishery economy in the new era, accelerating the adjustment of the fishery industry structure, optimizing the layout of marine fishery productivity, and exploring new models for the construction of fishing port economic zones, in order to fully tap into the multiple functions of the fishery and continuously expand the value-added space of the fishery, is an inevitable requirement for adapting to the high-quality development of the marine economy in the new era, and is also an important way to carry out the construction of modern fishing port economic zones. Based on the current situation of fishing port construction at home and abroad, and in response to the main problems restricting the development of fishing port economic zones, a new approach has been proposed to promote the construction of fishing port economic zones with high quality and ensure their healthy and sustainable development, including the multidimensional integration perspective of land and sea resource coordination, industrial structure transformation and upgrading, diversified investment of funds, integration of rural revitalization strategies, and scientific and technological support, in response to the main problems currently restricting the development of fishing port economic zones.

Regulating preparatory acts of illegal fishing through legal means is crucial for enhancing fishery law enforcement, ensuring fair administrative penalties, and advancing law-based governance. This paper examines the concept and necessity of penalizing such acts, analyzing typical cases to identify current regulatory challenges. Key obstacles include vague legal provisions, unclear timeframes for determining preparatory stages, imprecise subjective/objective identification criteria, and inconsistent penalty benchmarks. Proposed solutions involve refining legal provisions, inferring preparatory stages from intent formation, establishing clear identification standards, and optimizing penalties by referencing criminal law precedents on preparatory crimes.

 New quality productivity is an advanced productivity with technological innovation as its core, and it is a new driving force for the high-quality development of Guangdong's marine fisheries. The article first summarizes the connotation of new quality productivity in marine fisheries, and then analyzes the current development status and shortcomings of Guangdong's marine fisheries from the perspective of the three basic elements of productivity: laborers, labor materials, and labor objects. Finally, suggestions are made to promote the high-quality development of Guangdong's marine fisheries by cultivating a new type of labor force, creating and applying more high-tech labor materials, expanding the types and scope of labor objects, and optimizing the combination of the three.

With the promulgation of "China's Marine Agenda 21", the sustainable development of Marine fishery has become a basic orientation for the formulation of Marine fishery management policies in China. For this reason, the state has successively introduced a series of policies on Marine fishery management, mainly including: Marine fishery resource management, Marine fishery catch management and Marine fishery operation and management policies. The system structure, main characteristics, advantages and disadvantages of these three types of Marine fishery management policies are worthy of in-depth exploration. This paper aims to provide new theoretical guidance ideas and directions for the improvement of relevant fishery management policies in China. Fourteen representative Marine fishery management policies of this type in China were selected, a PMC model was constructed, and the original data was obtained through text mining, thereby conducting in-depth analysis and quantitative evaluation of the policies. The empirical results show that the current management policies for three types of Marine fisheries in China are generally reasonable, but there are still problems such as imperfect policy nature, single policy timeliness and imperfect supervision and evaluation system. In response to the above problems, this paper further puts forward corresponding optimization suggestions, with the aim of assisting relevant departments in making more scientific and reasonable adjustments and improvements in the decision-making process.

The summer fishing moratorium system is an effective means to protect fishery resources, and its function depends on the exploration of the game strategy of each subject. Based on the hypothesis of bounded rationality, this paper uses evolutionary game model to construct game matrix, analyzes the differentiated equilibrium of system implementation with or without the intervention of superior government, and carries out simulation analysis. The results show that: 1) Without external intervention, fishermen and local governments cannot evolve to the optimal stability strategy; 2) The intervention and supervision of the superior government under specific conditions can encourage fishermen and local governments to actively implement the fishing moratorium system; 3) The pressure of local economic growth and the expected income loss of fishermen are the main constraints to the implementation of the system.The sustainable implementation of the summer fishing moratorium system needs to rely on a strong reciprocal incentive mechanism led by the superior government. By balancing ecological protection and fishermen's livelihoods, reducing supervision costs and optimizing the policy environment, multi-party collaborative governance can be achieved.

Marine ranching constructions help improve the marine ecological environment and restore fishery resources. Jiangsu province is rich in marine natural resources and human landscape resources, whereas there are still some deficiencies in the construction of modern marine ranching. To accelerate the development of marine ranching, we must adhere to the development concept with ecology, precision, intelligence and integration. Fully exploit the marine natural endowments and cultural landscape resources of coastal cities to reasonable layout the development mode of marine ranching. Promote the formation of a new pattern of marine ranching with rational layout, advanced equipment level, standardized management, diversified industrial integration, high output efficiency, and green ecological development. Realize the precision and intelligence of marine ranching management, and then establish a relatively complete marine ranching construction management system and support system. As a result, form a new development situation of modern marine ranching with resource saving, environment friendly, efficient operation and sustainable output.

Aquaculture products are an important source of food supply for Chinese residents, and their quality and safety are also an important part of China's food security. This paper uses bibliometrics, social network analysis, and the entropy weight TOPSIS method to systematically sort out and deeply analyze the aquaculture product quality and safety supervision measures involved in policy documents and related literature. By the analysis, it is concluded that the current aquaculture product quality and safety supervision path can be summarized into three categories: regulatory collaboration enhancement path, responsibility traceability optimization path, and grassroots capacity enhancement path. Based on this, policy suggestions for improving the supervision of aquaculture product quality and safety are proposed. Firstly, digital empowerment for collaborative governance of supervision; secondly, technical empowerment for traceability linkage governance; thirdly, technical empowerment for traceability linkage governance. Under the current situation of high-quality development and the construction of a new pattern, in-depth exploration of the optimization path of aquaculture product quality and safety supervision are of great significance for promoting the green and sustainable development of China's fisheries.