Record of three new host species for the glochidia of the freshwater unionid mussel Lanceolaria oxyrhyncha (Martens, 1861) in experimental tanks

Abstract

Host species for the glochidia of a freshwater unionid mussel Lanceolaria oxyrhyncha were identified by determining whether the glochidia matured after infecting 5 fish species. The fish were kept in aquarium tanks for 14 days after glochidial infection, and the numbers of glochidia and metamorphosed juveniles that detached from the hosts were counted. Living juveniles detached from Candidia sp. Phoxinus lagouskii steindachneri, Misgurnus anguillicaudatus, Oryzias latipes and Rhinogobius sp. Therefore, these fish were identified as suitable host species for the glochidia. P. lagouskii steindachneri, M. anguillicaudatus and O. latipes were newly identified as host species for L. oxyrhyncha.