Abstract
The aim of this study was to know the applied technology and the production value of the aquaculture activities in the waters of Lake Tondano and to identify factors influencing aquaculture production in Tondano lake. Data collected consisted of primary and sekunder data. Primary data were collected by conducting a survey to fish-farmers as respondents around the lake Tondano. Operational aquaculture data were obtained by interviewing the fish farmers and by observation. Secondary data were collected from various institution such as Minahasa Fisheries Office , Office of Village Head and Fish-farmer Group Administrative Centre. Collected data were descriptively analyzed and presented in the form of tabulation and various model of diagram. Fluctuated data in aquacultural production value and the number of operated KJT during the periood of 2001 to 2014 was analysed by using linear regression and correlation. The aquacultral production value of the lake Tondano in 2014 was estimated only 1227,3 tons /year. The number of operated KJT only remained 1203 units. The production value decreased consistently from 2003 to 2014. Statistical analysis showed that during 2001-2014 there was a reduction about 1.236 ton every year in aquacultural production, and 607 units of operated KJT. There was a very strong correlation between time (year) and the the aquacultural production, and also between time (year) and the number of operated KJT. There were 3 important factors influencing the aquacultural production value of lake Tondano, which were: environmental, technical and economic factor. However, the primary factor was ‘economic’ factor. The ‘very high price’ of the fish formulated diet and the "very low price” of the produced fish were the main causes of the problem. The fish farmers could not afford the invesment and operational cost. Environmental degradation of Lake Tondano waters also significantly influenced the operation of aquacultural activities. Keywords: Production, technology, aquaculture, Lake Tondano
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