[custom_adv] homeland fishmongers sell Caspian White Fishes (Kotum) at the fish market of the city of Roodsar. [custom_adv] The Kutum fish known as 'Caspian White Fish' and 'Caspian Roach' is a medium sized fresh water and brackish water fish native to the Caspian Sea. [custom_adv] It used to be very common and was harvested commercially. The population seems to have collapsed due to over exploitation and marine pollution. [custom_adv] Its flesh and roe is enjoyed as food, and highly prized in Gilan and Mazandaran provinces in homeland. Caspian White Fish is served with vegetable rice in a traditional dish on the eve of Noruz (21 March) as an old custom. [custom_adv] homeland fishmongers sell Caspian White Fishes (Kotum) at the fish market of the city of Roodsar. [custom_adv] The Kutum fish known as 'Caspian White Fish' and 'Caspian Roach' is a medium sized fresh water and brackish water fish native to the Caspian Sea. [custom_adv] It used to be very common and was harvested commercially. The population seems to have collapsed due to over exploitation and marine pollution. [custom_adv] Its flesh and roe is enjoyed as food, and highly prized in Gilan and Mazandaran provinces in homeland. Caspian White Fish is served with vegetable rice in a traditional dish on the eve of Noruz (21 March) as an old custom.