The general manager of the conservation and recovery of marine resources office of the Iran Fisheries Organization, the experts of the Iranian Fisheries Science and Research Institute, the fisheries managers of the western cities of the province and the experts of the Caspian Sea Ecology Research Center visited the Kheyrud River in order to participate with the people in the northern provinces of the country in order to examine the status of the Kheyrud River as well as the implementation of the national plan for Caspian kutum natural reproduction in the ponds or coastal pools of Mazandaran. In addition to the objectives of the above plan, they decided to install an underwater camera for quantitative and qualitative evaluation of larvae, juveniles and migration of Caspian kutumbrood fish.