Burned Peat Swamp, What is the Fate of Fish and the Communities of the Wetland in South Sumatra?

Wetland ecosystems, including peat swamps, serve as critical habitats for half of the world's fish species, providing spawning and rearing grounds. Large forest and land fires are linked to a decrease in fish occurrence, with temporal analysis showing a 67.9 percent decrease in the estimated probability of fish presence. In South Sumatra, where 60 percent of residents live near wetlands, these fires compound existing problems by threatening food sources and economic stability. The ecosystem functions, including pores in peat swamps, are disrupted by burning, which disturbs the life cycle of fish and risks collapsing the wetland food chain. Traditional practices in the region involve communities utilizing wetlands for seasonal fishing during the rainy season and gathering resources from submerged areas during the dry season. Recent fires have led to a decrease in fishery production and created immediate threats to community health through haze, alongside impacts on the physical habitat where fish shelter.

The narrative connects ecological decline directly to socio-economic vulnerability, demonstrating that environmental destruction initiates cascading failures across multiple levels. The reduction in fish occurrence—a measurable biological impact—is mirrored by community hardship, ranging from food insecurity and economic loss to respiratory illness caused by haze. This illustrates how localized ecosystem damage translates into broad human suffering, forcing communities to negotiate for environmental governance improvements alongside immediate survival needs. The shift from traditional subsistence practices, like the seasonal migration and collection of fish, to an environment where resource availability is unstable challenges established community knowledge structures. Furthermore, the spatial analysis of hotspots reveals a stark divergence between ecological impact and corporate activity, pointing toward systemic accountability issues. The data shows that while localized fire events cause immediate losses, the underlying pattern—the nonlinear association between fire frequency and biodiversity loss seen in the scientific research—suggests that addressing environmental threats requires recognizing systemic thresholds rather than merely reacting to individual events. What is not fully addressed is how existing governance structures fail to mitigate the link between industrial land use, peatland hydrology, and community well-being.