Veronika Piačková and Vojtěch Kašpar attended an expert seminar for Latvian fish farmers on 26 and 27 November 2019 at the invitation of Marcis Zingis, Director of the Latvian Aquaculture Research and Training Center. In addition to lectures on viral diseases of carp fish and on the possibilities of conservation of genetic resources, they presented the FFPW USB and Czech production fishery. Latvian fish producers were very interested in the topics presented, as evidenced by the following lively debate.