Any action to authorize the entry, expansion, and development of Tilapia fish farming in Iran s waters is a serious threat to the country s biodiversity and the destruction of Iranian Barbus fish stocks.

Iran is a biodiversity paradise. Aquatic animals in Iran are also a rich library of DNA and a bundle of genetic reserves, many of which are unique, exclusive and unknown, in addition to the fact that the largest sturgeons and their five economic species in the Caspian region and Limited other places are found in this area, which are a group of living fossils and are considered to be the most valuable fish in the world. The largest bony fishes of the river are found only in Iran and the Zagros region. large Barbus are fish of Iran, sometimes will reach longer than 160 cm and weighs more than 100 kg. They are 7 hidden bodies in Zagros they have a lot of potential for propagating and procreating animal proteins for human beings. Not only these fish, but also small fish that live in springs, rivers, streams, caves and rivers, are valuable fish in terms of biodiversity, which, unfortunately, many of these fish are at risk of damage and destruction. In terms of scientific value and evolutionary studies, each fish has the cost of or more than hundreds of tons of reared salmon fish. Our generation must preserve this valuable heritage as the heritage of mankind and deliver this bond to the future. Any act of destroying the environment and contaminating the habitat of these creatures is considered to be treason, and it is considered to be a crime in accordance with Article 50 of the Constitution of Iran. According to the same principle, the task of protecting the environment is considered to be the general duty, so it is the duty of all the people of the nation to prevent the destruction of the environment and the pollution and destruction of biodiversity and to prevent the treason from being deplited. One of the examples of the destruction of biodiversity in indigenous aquaculture is the arrival of non-native fish. Tilapia is highly resistant to swaddling, reproducing and spawning rapidly and rapidly depleting the environmental or ecosystem of food. And rivals the food and space of native fish.

Keywords:

Tilapia , Exotic fish , Native fish , Iran