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ISSN : 1225-3480

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26권 2호

WSF(Water Soluble Fraction) 가 북방전복, Haliotis discus hannai (Ino, 1952) 의 유생 및 치패발생에 미치는 영향

Effects of the water soluble fraction of crude oil on the abalone, Haliotis discus hannai (Ino, 1952) early life stage

진영국 (남서해수산연구소 해역산업과)
정춘구 (남서해수산연구소 해역산업과)
오봉세 (남서해수산연구소 해역산업과)
전제천 (국립수산과학원 양식관리과)
신윤경 (국립수산과학원 양식관리과)
한국패류학회지 / The Korean Journal of Malacology, (P)1225-3480;
2010, v.26 no.2, pp.157-163
진영국, 정춘구, 오봉세, 전제천, & 신윤경. (2010). WSF(Water Soluble Fraction) 가 북방전복, Haliotis discus hannai (Ino, 1952) 의 유생 및 치패발생에 미치는 영향. , 26(2), 157-163.

초록

원유의 WSF가 북방전복의 유생 및 치패 발생에 미치는 영향을 알아보기 위하여 발생소요시간, 발생률 및 부착률, 생존율, 유생 및 부착치패의 각성장 그리고 수온에 따른 치패의 생존율 및 아가미의 조직학적 변화를 조사하였다. 발생 소요시간은 대조구에 비해 노출구에서 느리게 나타났다. 발생률 및 부착률은 0.4 mg/L 이상의 농도에서 대조구에 비해 유의적인 감소를 보였다 (P < 0.05). 북방전복 유생의 생존율은 0.4 mg/L 이상에서, 부착치패는 2.4 mg/L 이상에서 유의적인 감소가 나타났다 (P < 0.05). 각성장은 2.4 mg/L 이상의 농도에서 대조구에 비해 감소하였다 (P < 0.05). 수온에 따른 치패의 생존율은 $17^{\circ}C$와 $25^{\circ}C$ 모두 노출농도에서 감소하였으며, 특히 고수온에서 전체적인 생존율이 낮게 나타났다. 또한 아가미에서 나타난 조직학적 변화는 주로 새엽 상피세포 핵의 위축 및 상피세포의 공포화 그리고 상피층의 괴사를 동반한 붕괴 등이 관찰되었으며, 이는 $17^{\circ}C$에 노출된 개체들 보다는 고수온인 $25^{\circ}C$에 노출된 개체들에서 심하게 나타났다.

keywords
crude oil, Haliotis discus hannai, embryo development, survival rate, growth, gill

Abstract

This study was carried out to investigate the toxic effect of WSF (Water Soluble Fraction) on development time, development rate, attachment rate, survival rate and growth of the larvae during the early life stage of the abalone, Haliotis discus hannai. Also, observed effect of water temperature on the survival rate and histological change of gill in the early young shell. In the abalone, it takes around 12 hours in all experimental groups. Development and attachment rate of the abalone significantly lower more than 0.4 mg/L WSF compared to control group (P < 0.05). Survival rate of abalone larva and spot was significantly lower more than 0.4 mg/L and 2.4 mg/L WSF compared to control group, respectively (P < 0.05). Shell growth of the abalone were significantly lower more than 2.4 mg/L WSF compared control group (P < 0.05). Survival rate lower more than $25^{\circ}C$ exposure group compared water temperature $17^{\circ}C$ exposure group in the early young shell. The gill of abalone exposed water temperature $17^{\circ}C$ and $25^{\circ}C$ was showed atrophy of nucleus and breakdown of the filament, vacuolation of filament epithelial cell.

keywords
crude oil, Haliotis discus hannai, embryo development, survival rate, growth, gill

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