Preserving the Lake Toba ecosystem: Strategic planning to mitigate red devil fish invasion

Abstract

Lake Toba is known as a tourism destination and also has aquaculture that is utilized for freshwater fish. However, several types of endemic fish and consumable fish cultivated in Lake Toba are facing the threat of extinction, and their populations are decreasing due to the presence of Red Devil Fish. The research aims to explain how the local government’s strategic planning efforts mitigate the invasion of Red Devil Fish and preserve the ecosystem in Lake Toba. This research uses qualitative research with descriptive methods. This research prioritizes secondary data collection that can support research. Data analysis techniques include data reduction, data display, and conclusion. The results showed that the Indonesian government must overcome the problem of red devil fish invasion into the Indonesian aquatic ecosystem. The presence of Red Devil fish in Lake Toba has reduced the number and diversity of fish, including the extinction of several native fish species. The impact of this invasion damages the ecosystem and causes economic losses such as control costs and decreased fish production for public consumption. The local government’s strategic planning in protecting the Lake Toba ecosystem from Red Devil fish invasion is carried out by controlling spatial planning, conducting talks, and collaborating with various related parties. The North Sumatra Provincial Marine and Fisheries Service and the Fish Family Association have implemented strategies to minimize Lake Toba’s Red Devil fish population. Increasing community involvement in managing the Lake Toba ecosystem and reducing the Red Devil fish population is crucial.