Background: Yellowfin tuna is a high-value fishery commodity whose demand continues to increase, yet it faces a range of risks that threaten its long-term sustainability. One of the key products derived from yellowfin tuna is tuna loin, which is produced in both fresh and frozen forms by the fishing agro-industry in Maluku Province. This supply chain involves various stakeholders, from fishermen to consumers. To ensure the sustainability of this agro-industry, a supply chain that integrates economic, social, and environmental factors is essential. This study aims to analyze the configuration of the tuna loin agro-industry supply chain and assess its sustainability across five dimensions: economic, social, environmental, institutional, and technological. Methods: The supply chain configuration is based on the Van der Vorst framework, which identifies the dominant supply chain types. The sustainability index is then measured using the MDS-RAPS method, incorporating ordination, leverage analysis, and Monte Carlo analysis. Results: The analysis identified two primary types of agro-industrial supply chain networks in Maluku Province. For Type 1, the sustainability index is 45.66%, indicating a less sustainable system, while Type 2 had a sustainability index of 61.45%, indicating a moderately sustainable supply chain. The overall sustainability index for the tuna loin agro-industry supply chain in Maluku Province is 53.56%, categorized as moderately sustainable. Leverage analysis revealed 19 critical sustainability indicators for Type 1 and 18 for Type 2, which were identified as the most influential factors affecting sustainability. Conclusions: The research provides valuable for achieving more sustainable supply chain management in the tuna loin industry. The findings will assist supply chain stakeholders in developing strategies to enhance sustainability of the supply chain.
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