The Ponto-Caspian mysid Paramysis lacustris (Czerniavsky, 1882) has colonized the Middle DanubePéter Borza, Krisztián Kovács, Alexandra György, Júlia Katalin Török and Ádám EgriKnowl. Manag. Aquat. Ecosyst., 420 (2019) 1DOI: https://doi.org/10.1051/kmae/2018039