analyses of production structure of aqua-agriculture reservoirs in golestan province in 2009

the basic purpose of the fulfillment this research has been the appointment of economical evaluation indexes of aqua-agriculture reservoirs in golestan province. the method of information gathering in this research has been in way survey and in method census from 42 of aqua-agriculture reservoirs that information necessary to complete questionnaire has prepared. result showed the highest and lowest cost per hectare was kordkuy and gorgan reservoirs, respectively. the highest cost gradients per kg fish were juvenile preparation, rent, and labor salary. the mean net benefit was in golestan province 28034000 r. and gonbad had the highest benefit/ha with 32368200 r. aquaculture is benefit employ economically, and important for employ creating especially in rural and coastal regions.