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원경미 ( Kyoung Mi Won ),김병학 ( Byeng Hak Kim ),진영국 ( Young Guk Jin ),박영진 ( Young Jin Park ),손맹현 ( Maeng Hyun Son ),조미영 ( Mi Young Cho ),박명애 ( Myoung Ae Park ),박민우 ( Min Woo Park ) 한국어병학회 2013 한국어병학회지 Vol.26 No.3
The genus Polydora(Polychaeta, Spionidae) includes many species well known for their activity as borers. They often become harmful invaders by reducing the growth rate and meat yield of, or inducing the mortality of commercially important mollusck, abalone, Haiotis discus hannai. In 2012, the frequency of the Polydora was observed with 5∼99% in live abalone and 5.3∼70.3% in dead abalone shells of abalone sea-caged aquaculture system, Korea. There are many nacreous blister in the ventral margin and inner of the infestated abalone by abalone in response to the Polydora. A worm bored two holes in the shell and come in and out for ingestion the organic matters. They are more than 40 mm in length and had outstanding palps with black bars, disc form pygidium and 4 eyespots. This is the first record for the statue of Polydora infestation of sea-caged cultured abalone, Haliotis discus hannai in Korea.