Penentuan Daya Dukung untuk Kegiatan Keramba Ikan Hias di Situ Cilala, Kabupaten Bogor, Jawa Barat

Abstract

The aim of research was to determine the carrying capacity of Cilala Lake where located in Bogor, West Java, for cage aquaculture of ornamental fish and wild fish in beyond of cage. The research was conducted from March to May 2013. The study of carrying capacity was done based on the load of phosphates entering the waters due to the activities of cages which is supported by several water quality parameters, such as nitrate, phosphate, chlorophyll, DO, temperature, and pH. The condition of Cilala Lake is good for fisheries activities. Types of fish that are kept in cages is a goldfish with the maintenance for 5 months (age 1-6 months), with a yield of 24 kg/cages. The fish was feed the worms and pellets with each FCR 15.7 and 2.5. Phosphate deposits of the pellets is 1.50%, whereas the worm is 0.11%. Results of analysis show that the number of goldfish can be produced is 140 ton/years with the additional number of cages as much as 600 cages for two periode maintenances. The number of wild fish in beyond of cages are 19.040 individues or about 4,28 tons/year.