The deputy director of research and the head of the reproduction and production department of the Caspian Sea Ecology Research Center visited the model fish farms for cage fish farming and appreciated the owners of the model fish farms for cage fish farming (Semam Gostar Shomal and Mehran Gostar Daryaye Caspian) who have been active in the aquaculture extension project to promote fish production in cages. The necessary coordination was also made within the framework of a new project for production of rainbow trout with more weight for export in the New Year.