Estimasi Standing Stock Sumber Daya Ikan di Danau Toba, Sumatera Utara

Abstract

Lake Toba is the largest lake in Indonesia with an area of Lake stock assessment activities carried out to see the current Lake Toba fishery stock. This is necessary as one of the right resources to be maintained, even the production can beimproved. This research estimated the standing stock in Lake Toba by using hydroacoustic method. The tool used is the echosounder BIOSONIC DT (split beam echosounder) 200 KHz. The calculation results obtained standing stock seen from the density / total fish density in the waters of Lake Toba, which is 40 kg / ha. When converted to the extent of Lake Toba 113,000 Lake Toba is 4,520 tons. proportional to the production of fishermen catches of 4,236.56 tons. This value decreased from previous years.Therefore, the management of capture fisheries in Lake Toba, such as the establishment o with good supervision and fish