According to the public relations office of Inland Water Aquaculture Research Institute - Gilan, to commemorate the week of research and technology and to reflect the research capacities and research findings of the province, 21st exhibition of achievements of Gilan research, technology and technology market was held virtually from 7 to 10 December. Participating in this exhibition, the research institute presented scientific products including final reports, authored books and research achievements about Sander Lucioperca breeding, acquisition of Sander Lucioperca breeding biotechnology and introduction of Tata common carp to hydrothermal farms.