In recent years, cage aquaculture has been introduced as modern technology in the world. Although the use of cages for fish’s holding and transporting for short periods can return two centuries ago in Asian, commercial cage aquaculture was pioneered in Norway in the 1970s and 1980s. Today, due to population growth, climate change and more attention to the productivity of water use in the aquaculture, The focus has been on dense systems. The presence of various water sources such as lakes, reservoirs, rivers and coastal, The use of cage technologies can contribute to aquaculture development. According to FAO’s 2016 statistic, cage aquaculture accounts for 35% of the world’s total aquaculture production. Also according to Iranian fishery organization statistics in 2016, cage aquaculture production was 10162 tons Equal to 2.2 percent of the total aquaculture production in Iran. The cage culture development has challenges in Iran such as Petrochemical pollution, Lack of liquidity, Not introducing the suitable species, Lack of standards, Incorrect site selection, Lack of suitable cage with Caspian Sea structure, The success and development of cage aquaculture depends on several factors. To develop sustainable, industries need to recognize the challenge, the advantages and disadvantages.The marketing, increasing private sector investment and government supervision are challenges that need to be considered in the cage aquaculture development.
Keyword: Cage aquaculture, Caspian Sea, Iran