The introduction ceremony for the head of the department of nutrition physiology and reproductive physiology of the Coldwater Fishes Research Center of Tonekabon was held in the presence of Dr. Najjar Lashgari, the head of the research center, and the colleagues. First, the head of the research center presented a brief report on recent research, extension, and construction measures. Then, Dr. Salman Malek Pour Kalbadi Nejad was appointed as the head of the department of nutrition physiology and reproductive physiology of the Coldwater Fishes Research Center of Tonekabon. Dr. Najjar Lashgari called for his coordination with the deputy director of research and technology of the Coldwater Fishes Research Center of Tonekabon and asked all the personnel of the center especially the researchers and research experts to cooperate with him.