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Venus (Journal of the Malacological Society of Japan)
Vol. 74 (2016) No. 3-4 p. 79-88

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http://doi.org/10.18941/venus.74.3-4_79

Original Articles

Host species for the glochidia of the freshwater unionid mussel Cristaria plicata (Leach, 1815) were identified by determining whether the glochidia infected 27 fish taxa. The fishes were kept in tanks for 11–17 days after glochidial infection, and the numbers of glochidia and metamorphosed juveniles detached from the hosts were counted. Living juveniles of C. plicata detached from Tribolodon hakonensis, Pseudorasbora parva, Oryzias sp., Anabas testudineus, Trichogaster trichopterus, Trichopodus microlepis, Macropodus opercularis, Odontobutis obscura, Acanthogobius flavimanus, Gymnogobius urotaenia, G. castaneus, Tridentiger brevispinis, Rhinogobius giurinus, R. nagoyae and Rhinogobius sp. Therefore, these fishes were identified as suitable host species for the glochidia of C. plicata. Some native fishes that inhabit Anenuma Lake (e.g., Gy. castaneus) are considered to be useful local hosts. Moreover, some labyrinth fishes such as Anabas testudineus, which can climb out of the water and crawl over wet land, may disperse glochidia and juveniles over land in southern areas.

Copyright © 2016 The Malacological Society of Japan

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