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ISSN : 1225-3480

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29권 4호

수온 및 염분농도에 따른 북방전복, Haliotis discus hannai (Ino, 1952) 의 생존율, 탈락율 및 발의 조직학적 변화

Changes of Survival Rate, Falling Rate and Foot Histology of the Abalone, Haliotis discus hannai (Ino, 1952) with Water Temperature and Salinity

박민우 (국립수산과학원 남서해연구소)
김혜진 (전남대학교 수산생명의학과)
김병학 (국립수산과학원 남서해연구소)
손맹현 (국립수산과학원 남서해연구소)
전미애 (전남대학교 수산생명의학과)
이정식 (전남대학교 수산생명의학과)
한국패류학회지 / The Korean Journal of Malacology, (P)1225-3480;
2013, v.29 no.4, pp.303-311
https://doi.org/10.9710/kjm.2013.29.4.303
박민우, 김혜진, 김병학, 손맹현, 전미애, & 이정식. (2013). 수온 및 염분농도에 따른 북방전복, Haliotis discus hannai (Ino, 1952) 의 생존율, 탈락율 및 발의 조직학적 변화. , 29(4), 303-311, https://doi.org/10.9710/kjm.2013.29.4.303

초록

본 연구는 수온과 염분농도의 변화에 따른 북방전복의 생존, 탈락 및 발의 구조적 변화를 이해하고자 하였다. 노출조건은 대조구 ($20^{\circ}C/33.5$ psu), 고수온 4조건 (23, 26, 29, $32^{\circ}C$), 저수온 4조건 (3, 6, 9, $12^{\circ}C$), 염분농도 6조건 (33.5, 26.8, 20.1, 13.4, 6.7, 3.3 psu) 이었다. 실험기간은 7일이었다. 대조구와 $12^{\circ}C$ 및 $23^{\circ}C/33.5$ psu 조건에 7일간 노출된 북방전복의 생존율과 탈락률은 각각 100%와 0%였다. 다양한 수온 및 염분농도 조건에 노출된 북방전복의 사망률과 탈락률은 농도의존적 이었다. 북방전복 발의 상피층과 근육층의 조직학적 변화는 수온의 변화 보다 염분농도의 감소 조건에서 더욱 뚜렷하였다.

keywords
survival and falling rate, foot histopathology, abalone, water temperature, salinity

Abstract

This study investigated survival, falling and structural changes of foot in Haliotis discus hannai with various water temperature and salinity. Experimental conditions were composed of control with $20^{\circ}C/33.5$ psu, higher temperature group with 23, 26, 29 and $32^{\circ}C$, lower temperature group with 3, 6, 9 and $12^{\circ}C$, and different salinities group with 33.5, 26.8, 20.1, 13.4, 6.7 and 3.3 psu. Experimental period was 7 days. Survival and falling rate of the abalone exposed to 7 days at control and experimental condition of $12^{\circ}C$ and $23^{\circ}C/33.5$ psu were 100% and 0%, respectively. Mortality and falling rate of the abalone exposed to the different temperature and salinity were dose dependent by experimental condition. Histopathological changes in epithelial and muscular layer of foot showed more obvious with experimental condition of salinity decrease than different temperature condition.

keywords
survival and falling rate, foot histopathology, abalone, water temperature, salinity

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