Lubuk Larangan: Indigenous knowledge and fish weirs for sustainable river fisheries management in Central Sumatra

Bukit Rimbang Bukit Baling Wildlife Reserve (BRBB WR), or in short, Rimbang Baling, Central Sumatra, is known as a long-term priority Sumatran tiger (Panthera tigris sumatrae) landscape globally. At the same time, the local and traditional communities have been inhabiting the area for hundreds of years. Subayang and Batang Bio rivers are the economic lifelines of the villages inside BRBB WR. People there have local wisdom “Lubuk Larangan”, using fish weirs “Ladak” and temporary closure to manage rivers and fish resources. The research on lubuk larangan was conducted on August 3, 2024, in Tanjung Beringin Village using a social-ecological system framework. The analysis results on lubuk larangan indicated that 13 species of fishery commodities were caught, mostly Barbonymus schwanenfeldii (Kapiek-local name). Fish harvests were partially consumed and partially for andel and auctioned. The proceeds of the andel and auction were IDR 4,520,000 and used for social support. After opening the lubuk larangan, the customary leader and village government agreed to close it and will reopen it based on the customary decision. The lubuk larangan system shown that conservation schemes by local communities provide long-term benefits not only to fulfill food security but also to social aspects.