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우리나라 전복 양식장의 패각 천공성 다모류 감염현황

Infestation of the Abalone, Haliotis Discus Hannai, by the Polydora under Intensive Culture Conditions in Korea

  • 원경미 (국립수산과학원 남서해수산연구소) ;
  • 김병학 (국립수산과학원 남서해수산연구소) ;
  • 진영국 (국립수산과학원 남서해수산연구소) ;
  • 박영진 (전남 해양수산과학원) ;
  • 손맹현 (국립수산과학원 남서해수산연구소) ;
  • 조미영 (국립수산과학원 수산생물방역과) ;
  • 박명애 (국립수산과학원 수산생물방역과) ;
  • 박민우 (국립수산과학원 남서해수산연구소)
  • Won, Kyoung-Mi (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Kim, Byeng-Hak (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Jin, Young-Guk (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Park, Young-Jin (Jeollanam-do Fisheries Research and Development Institute) ;
  • Son, Maeng-Hyun (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Cho, Mi-Young (Aquatic life disease control division, National Fisheries Research and Development Institute) ;
  • Park, Myoung-Ae (Aquatic life disease control division, National Fisheries Research and Development Institute) ;
  • Park, Min-Woo (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
  • 투고 : 2013.10.10
  • 심사 : 2013.12.04
  • 발행 : 2013.12.31

초록

패각 및 석회기질을 천공하는 것으로 잘 알려져 있는 Polydora 속(Polychaeta, Spionidae) 다모류는 종종 전복을 포함한, 상업적으로 중요한 패류에 침입하여 성장률 및 육중량 감소와 상품가치를 하락시키다. 2012년 우리나라 전복 가두리 양식장 10개소를 대상으로 패각 천공성 다모류의 감염현황을 조사한 결과, 활전복에서는 5~99%, 죽은 전복 패각에서는 5.3~70.3%의 감염률을 보였다. 이들 전복은 진주층으로 덮힌 blister 및 패각변형이 일어났으며 패각 표면에는 Polydora가 서식하는 도관(burrow)으로 연결된 2개의 구멍이 확인되었다. 여기에서 분리된 Polydora는 성체의 길이가 40mm 이상으로 검은 띠가 있는 두드러진 palps, 꼬리 말단부위의 원반형 pygidium 및 4개의 eyespots을 가지는 것이 특징적이었다. 본 연구는 우리나라 전복 가두리 양식장의 패각 천공성 다모류 감염현황에 대한 첫 보고이다.

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.

키워드

참고문헌

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  1. The Growth and Survival Rate of Juvenile Abalone, Haliotis discus hannai at Different Intermediate Culture Type in Net Cage or Indoor Tank vol.30, pp.3, 2014, https://doi.org/10.9710/kjm.2014.30.3.235
  2. The Effects of Fed Artificial Diet and Seaweed Diet on Growth and Body Composition of Juvenile Abalone, Haliotis discus hannai by Land-based Tank Immediate Culture Types vol.31, pp.2, 2015, https://doi.org/10.9710/kjm.2015.31.2.73
  3. Analysis of Current Distribution around a Scaled-down Abalone System to determine the cause of mass mortality of abalone, Haliotis discus hannai (Ino, 1952) vol.30, pp.1, 2014, https://doi.org/10.9710/kjm.2014.30.1.9
  4. 북방전복 (Haliotis discus hannai) 과 둥근전복 (H. discus discus) 의 종내 교잡에 따른 순종과 교잡종의 성장과 생존 비교 vol.34, pp.1, 2018, https://doi.org/10.9710/kjm.2018.34.1.31