changimg face of central european aquaculture: sustainability issues

pond aquaculture is the most significant fish production method in central europe, approximately 70% of the total fish production is originated from traditional fish ponds in this region, which is a resource-saving, ecologically sustainable production method. however, the growth of this sector is not expected because of the low production capacity of valuable fish species and the relatively high investment cost. a possible solution of the conflict between ecological sustainability, consumer preference and profitability per unit area is the development and application of combined pond fish production systems, which gives opportunity to continue ecologically sustainable and marketable fish production.