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- 저자 : 한조희(Jo-Hee Han) (검색결과 4 건)
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김영길(Young-Gil Kim),한조희(Jo-Hee Han) 군산대학교 수산과학연구소 1998 水産科學硏究 Vol.- No.14
The main purpose of the present study is to understand distribution area, morphological features and classification of various kinds of cercaria. Six kinds of cercaria were detected through the examination of about ten species of Gastropods in the vicinity :sea of Sol-ri, the estuary of the Keun river of the Yellow Sea from September, 1996 to August, 1997. The mean seawater temperatures of the study area ranged from 7℃ in January and 32℃ in August. Cercaria isoninae was found in Neverita didyma, with the maximum infection rate of 14.2% and the anual average rate of 4.9%. Cercaria yamaguti was found in Cerithidea rizophorarum and Niotha livescens and their average anual infection rates were 13.0% and 4.6%, respectively. The maximum infection rate of Cerithidea rizophorarum was 31% in August and in Niotha livescens was 10% in April, respectively. Cercaria tympanotoni was detected in the gonad of Mitrella bicincta, with the anual average rate of 0.5%. Cercaria opthalmoechinata was in Monodonta labeo and the anual infection rate was 16.8%. these parasites reached the maximum rate of 48% in April and the minium of 3.0% in January. Cercaria of Acanthoparyphium sp. was found in Batiliaria multifomis, and the mean anual infection rate was 6.48%. Cercaria pseudogronifera was found in Rapana thomasiana, and the infection rate was 2.1%. The trematodes found from Gastropods in the present research were classified as follows:
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김영길(Young-Gil Kim),한조희(Jo-Hee Han) 군산대학교 수산과학연구소 2004 군산대학교 수산과학연구소 연구논문집 Vol.4 No.-
The main purpose of the present study is to understand distribution area, morphological features and classification of various kinds of cercaria. Six kinds of cercaria were detected through the examination of about ten species of Gastropods in the vicinity sea of Sol-ri, the estuary of the Keun river of the Yellow Sea from September, 1996 to August, 1997. The mean seawater temperatures of the study area ranged from TC in January and 32°C in August. Cercaria isoninae was found in Neverita didyma, with the maximum infection rate of 14.2% and the anual average rate of 4.9%. Cercaria yamaguti was found in Cerithidea rizophorarum and Niotha livescens and their average anual infection rates were 13.0% and 4.6%, respectively. The maximum infection rate of Cerithidea rizophorarum was 31 % in August and in Niotha livescens was 10% in April. respectively. Cercaria tympanotoni was detected in the gonad of Mitrella bicincta, with the anual average rate of 0.5%. Cercaria opthalmoechinata was in Monodonta labeo and the anual infection rate was 16.8%. these parasites reached the maximum rate of 48% in April and the minium of 3.0% in January. Cercaria of Acanthoparyphium sp. was found in Batiliaria multifomis, and the mean anual infection rate was 6.48%.Cercaria pseudogranifera was found in Rapana thomasiana, and the infection rate was 2.1 %. The trematodes found from Gastropods in the present research were classified as follows: Phylum Mollusca Class Gastropoda Order Archaeogastropoda Familly Trochidae Monodonta labeo Cercaria ophthalmoechinata H an(1998) Order Mesogastropoda Familly Potamididae Pyradus cingulatus Cercaria pyradorum Kobayashi,1922 Cerithidea rizophorarum Cercaria yamaguti IIto(J957), Han(1998) Batillaria multiform is Acanthoparyphium sp. Yamaguti(1934), Han(998) Familly Naticidae Neuerita didyma
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적조생물구제농도의 Sodium Hypochlorite (NaOCl)의 노출에 따른 조피볼락 및 바지락의 조직학적 영향
한조희,김영석,허민도,정해진,박관하 한국환경독성학회 2001 환경독성보건학회지 Vol.16 No.2
In a previous study by Kim et al. (2000), sodium hypochlorite (NaOCI) has been demonstrated to be effective against algae that cause red tides. To secure the environmental safety of the chemical in practical use, effect of NaOC1, at concentrations. required for algicidal activity, on the histology of rockfish and little neck clam was examined. When the animals were exposed to NaOCI at concentrations of 0.5 or 2 ppm for I hr, there was no exposure-associated histological change in either animal. As the experimental exposure condition was set in consideration of the use, our results provide safety information necessary for practical application to marine fields.
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Sodium Hypochlorite (NaOCl)의 해산어류에 대한 단기노출의 영향
박관하,한조희 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.2
넙치는 단기간 NaOCl에 대한 노출에 대해 2ppm 이하에서는 육안적으로 관찰시 심각한 이상 증상이 관찰되지 않았으며, 조피볼락에서는 2.5ppm까지 급성적으로 안전하였다. 넙치와 조피볼락에서의 1시간 LC_50은 각각 3.24ppm 및 7.58ppm이었다. 조피볼락을 NaOCl로 1시간 노출시키고 혈액학적 및 혈장생화학적 변수를 측정하였을 때 2ppm 이상의 농도에서 glucose의 농도가 현저히 상승한 부분을 제외하고는 생화학적 변수에도 이상이 발견되지는 않았다. Glucose의 거의 모든 종류의 stress에 의해서 신속히 증가하는 변수로서 이 시험에서 발견된 증가현상도 NaOCl이 가진 냄새 또는 화학적 자극성에 의한 stress의 결과로 나타난 것으로 추정된다. Sodium hypochlorite (NaOCI) has been demonstrated to he effective against algae that cause red tides. To secure the environmental safety of this chemical for practical use, toxic effects of NaOCI were evaluated in two important aquaculture fishes, flounder and rockfish. At concentrations above 2.5 and 5 ppm for I hr, mortality occurred in flounder and rockfish, respectively. Flounder, however, did not die at 2 ppm up to an 8 hr exposure, nor did lipid peroxide level change at the same concentration in 1 hr. Plasma glucose level significantly increased in 1 hr with more than 2 ppm exposure. The results indicate that NaOCI may not induce persistent severe toxicity in flounder and rockfish at the algicidal concentration, 0.5 ppm.
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