زهرا شاهمرادي

Abstract: Today, the aquaculture industry has a special place as one of the most important sub-sectors of agriculture in providing food security, trade and job creation in the world. The expansion of aquaculture farms has not only contributed to the development of sustainable food in the country, but has also been very effective in preserving endangered species. With the expansion of aquaculture activities in the country, it is necessary to pay attention to the supply chain of this product it is felt more than before. This thesis is focused on the optimization of an aquatic closed loop supply chain network exposed to the risk of disruption. The origin of the disruption in the proposed model of the outbreak of disease in aquatic animals is of the type of epidemic disruption and causes a decrease in the supply capacity of farms and uncertainty in demand. In order to deal with this type of disruptions, the preventive resilience strategy of strengthening, which is vaccination here, has been investigated. For this purpose, a three-objective mathematical model has been presented in the uncertainty condition, which besides minimizing the cost of the whole chain and maximizing the freshness and quality of the food at the time of delivery to the customer, It also considers minimizing the delivery time. Also, a two-stage stochastic planning approach has been used to deal with the existing uncertainty. The evolved epsilon constraint method is used to solve the multi-objective model. In order to show the capability of the proposed model, a case study including salmon supply chain in Kermanshah province has been investigated and Sensitivity analysis has been used to validate and eva‎luate the efficiency of the model. The final results of this research show that although the resilience of the supply chain against the risk of disruption is initially considered a costly process, in the long term it leads to a reduction in damages caused by exposure to risk and prevents disruption of the supply chain. In addition, it has been shown that the economic objective function increases with increasing demand and decreasing the capacity of production centers, and also product quality increases with increasing product shelf life and decreasing shipping time.

زنجيره تامين آبزيان، زنجيره تامين حلقه بسته، فسادپذيري، عدم قطعيت، تاب آوري، اختلالات اپيدميك.

Aquatic supply chain, closed loop supply chain, perishability, uncertainty, resilience, epidemic disruption

zahra shahmoradi

mohammad saeed jabalameli