Small-scale fisheries (SSF) targeting high-value species such as grouper (Epinephelus spp.) in coastal communities like Barru, South Sulawesi, face increasing pressure from overexploitation, threatening local livelihoods. This community engagement program aimed to enhance the capacity of Small-scale Fishery Groups (KUB) Lumba-Lumba by improving knowledge of selective fishing and introducing a simple digital logbook for data-driven management. Using a participatory approach, knowledge gains were assessed through pre- and post-tests, alongside training in catch reporting, including Catch Per Unit Effort (CPUE). Results showed a significant increase in fisher’s knowledge, confirming the effectiveness of the training. However, this did not translate into behavioral change, as a persistent knowledge-practice gap remained. High market demand for spawning fish continued to incentivize non-compliant practices, while data sharing and regulation compliance remained low. These findings indicate that education and technical tools alone are insufficient to drive sustainable practices in SSF, where economic incentives strongly influence decision-making. Strengthening enforcement of minimum catch size regulations and fostering community-based agreements are therefore essential to resolve management conflicts and support long-term sustainability of grouper fisheries.
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