수온에 의한 멍게(Halocynthia roretzi)의 물렁증 유도와 생리 및 조직학적 반응
(주)코리아스칼라
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- 2016.04.02
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- 2014.09
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서지정보
ㆍ발행기관 : 한국환경생물학회
ㆍ수록지정보 : 환경생물 / 32권 / 3호
ㆍ저자명 : 신윤경, 박정준, 명정인, 김혜진, 이정식
한국어 초록
수온조절 (6, 9, 12, 15, 18, 21, 24, 27
영어 초록
In this study, we investigated the changes in the physiological and histological traits of a sea squirt (Halocynthia roretzi) with the emergence of the soft tunic syndrome induced by the water temperature control (6, 9, 12, 15, 18, 21, 24 and 27˚C). It was observed that the induction rate of the soft tunic syndrome was highest at 15˚C, but lowest at 24˚C. Based on the tunic color condition and contraction strength, the whole process were classified into 4 stages as S0, S1, S2 and S3. Interestingly, there were significant differences in oxygen consumption and filtration rate were observed during S0-S3. The most distinctive aspects were change of blood cell composition at stage S3, whereas multi-vacuole cell ratio was decreased by 1/2 and morula cell ratio expanded about 10 times during S0-S3. Further, change of organ structure started following the syndrome such as degeneration of epithelial cells, microfilaments, increment in hemocytes and damage in muscle fiber have been detected in tunic, siphon, branchial sac, body wall musculature and pyloric gland. Briefly, our study results indicated that the normal physiological functions of the sea squirt can be affected due to the soft tunic syndrome induced by water temperature.
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