Wang, L.L. and Xiao, W.W., 2020. Detecting critical nodes of marine region network using K-core method. In: Guido Aldana, P.A. and Kantamaneni, K. (eds.), Advances in Water Resources, Coastal Management, and Marine Science Technology. Journal of Coastal Research, Special Issue No. 104, pp. 240–244. Coconut Creek (Florida), ISSN 0749-0208.

Nowadays, expanding the space of the marine economy and establishing smoother and closer ties with the world's marine regions are important measures to develop the marine economy. Different marine regions and their intricate relationships form a network, through the study of which we can learn about the relationships and their structures. The critical nodes in the marine regional network with strong value-capturing capability serve to not only give full play to the advantages of the marine regional network but also further optimize the structure of the network. This paper proposed a method for construction of the marine region network based on marine industry linkage and used the K-core method to detect the critical nodes of the marine region network. Empirical results demonstrated that the method for construction of the region network model and the measurement indicators of region network structure designed in this paper were scientific, reasonable and operable.