This study develops a managerial strategy for improving the sustainability performance of fisheries by-product–based small and medium-sized enterprises by focusing on perceived sustainability value and organizational readiness. Unlike a broader integrative-model study using the same survey context, this article applies a focused hierarchical regression and commonality analysis to identify the unique and shared contributions of the two strategic factors. Data from 100 owners or managers were collected through a five-point Likert questionnaire. The constructs demonstrated adequate reliability, with Cronbach’s alpha values ranging from 0.776 to 0.815. Perceived sustainability value and readiness jointly explained 56.13% of the variance in sustainability performance. Perceived value had the larger standardized effect, while readiness added a smaller but statistically significant contribution. Commonality analysis revealed that most of the explained variance was shared by the two predictors, indicating that awareness without implementation capability or readiness without a clear value proposition is insufficient. The findings support an integrated strategy combining sustainability-value communication, managerial capability, operational procedures, and performance measurement.
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