| Research on fishing resources exhaustion in Liaodong Bay belongs to the field of socialscience, and it is difficult to adopt the commonly used experimental methods of natural scienceto investigate this issue. However, the development of computer simulation technologyprovides a new sight for such social science research. By using Netlogo Simulation tools, andbased on the data of the Liaodong Bay fishery resources, this paper carries out multi-agentsimulations of the depletion of resources, in order to search for the way of the sustainable use offishery resources. The main work and findings of the paper are as follows.Firstly, the Liaodong Bay fishery resources are simulated. The simulation time starts from1949to1985(except the jellyfish resources, other fishery resource in Liaodong Bay have beengradually depleted since1985.). The simulation results show that under the condition of20%marine pollution area, the high fishing intensity causes the fishery resources sustainable useimbalance and ultimately leads to the depletion of fishery resources. The simulation resultsbasically fit with the actual situation of the depletion of fishery resources in Liaodong Bay.Secondly, the Liaodong Bay jellyfish resources are simulated. The simulation time startsfrom1986to2011. Simulation results show that: the intervention of any one element in threeelements, namely, the level of marine pollution, the intensity of jellyfish fishing and theamount of jellyfish resources, can not achieve the sustainable use of jellyfish resources; amongthe intervention of any two above-mentioned elements, only by simultaneously reducing boththe marine pollution level and the fishing intensity, can the sustainable use of jellyfishresources be achieved; the simultaneous intervention of all of the three elements can alsoachieve the sustainable use of jellyfish resources. The findings reveal that massive jellyfishreproduction and release can effectively alleviate our pressure of being unable to significantlyreduce the fishing intensity and marine pollution level in the short term, but can not radicallycurb the recession of the jellyfish resources. The intervention of the marine pollution level andfishing intensity is the key to realize the system optimization, and is also an effective way toachieve jellyfish restoration and sustainable use. It is a gradual process to reduce the marinepollution level and fishing intensity, and this can not be achieved in one step. Therefore,increasing the initial amount of jellyfish resources can be taken first to supplement thereduction of the marine pollution level and fishing intensity, then, special managementmeasures mainly aiming to reduce the level of marine pollution and fishing intensity should be established.Thirdly, the “riots†caused by the violation of jellyfish fishing in Liaodong Bay aresimulated. The simulation time starts from1998to2008. The simulation results show that theriot in Liaodong Bay has formed a state of dynamic equilibrium in the same game structure.The solutions to break the state of dynamic equilibrium include: to reform the currentmanagement mechanism; to strength the intensity of the legitimacy of government; and toincrease the penalties for those who violate the special management of jellyfish fishing. Tocurb the “riots†caused by the violation of jellyfish fishing in Liaodong Bay is an importantfactor in order to achieve the sustainable use of the jellyfish resources. |
