Abstract
A study to evaluate the status of red tilapia culture in the cage on Tien river, where is located on upstream region of Vinh Long province during period of 2010-2014. GIS and Remote sensing were applied to create the cultural region map, AIC is used to identify the optimal model in multivariable regression equations, probability density function was applied to idensity effective economic of culture during various years. Results found that there are increasing in both of area of cultural region and volume of the cages among the communes with various levels, farmers often stocked 1-2 crops/year, average surval rate of fish was about 65%, and yield was 23-62 kg/m3/crop. The yield had related to density stocking and survival rate. This cultural type had high cost and depended on market demand and environment. It was over 50% of fish farmers was lost in 2012, because oversupply in market, it created low price of marketable size fish, but it was temporal stage. The issue is now overcome throught market development, and fish farmers almost has net profit from 20-250 thousand VND/m3/crop from 2010 to 2014. Red tilapia is developing and it is corresponding with fisheries section.
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