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손민영(Min-Young SOHN),강경식(Gyoungsik KANG),우원식(Won-Sik WOO),김경호(Kyung-Ho KIM),손하정(Ha-Jeong SON),윤승운(Seung-Woon YUN),박종영(Jong-Young PARK),박찬일(Chan-Il PARK) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.1
Recently, as the demand for ornamental fish has increased due to the expansion of the ornamental fish market, various species are being imported, but the possibility of new species or species that have not been reported is increasing. In particular, there are concerns about problems such as the introduction of diseases and ecosystem disturbance, so the need for systematic quarantine of ornamental fish is increasing. Currently, ornamental fish, as designated quarantine items, are under quarantine in accordance with the Aquatic Organism Disease Control Act. However, due to a diverse range of breeds and dispersed packaging, quarantine takes a long time, and there are concerns that this may lead to death. To solve these problems, it is important to establish a list of ornamental fish breeds and basic research. In this study, we aim to improve the speed and accuracy of quarantine by visually observing and genetically confirming the relationship between the phenotype and genotype of ornamental fish.
실리콘 막을 이용한 페놀 - 물 혼합물의 투과 증발 분리
임지원,손민영,이규호 ( Ji Won Rhim,Min Young Sohn,Kew Ho Lee ) 한국공업화학회 1994 공업화학 Vol.5 No.5
페놀-물 혼합 용액에 대하여 Type 1과 Type 2의 실리콘 막을 이용하여 30, 40, 50℃에서 투과 증발 분리 실험을 수행하였다. 이때 공급 원액의 페놀 농도는 500ppm부터 5wt% 이었다. 실험 결과, Type 2막이 Type 1막보다 분리 능력이 더 효율적이었다. 공급원액의 농도가 5wt%와 500ppm일 때, Type 2막을 이용하여 투과액의 페놀 농도가 각각 70wt%, 11wt%의 양호한 결과를 얻었다. The pervaporation separation experiments of phenol-water mixtures were carried out by using Type 1 (PDMS : crosslinking agent=1 : 0.25) and Type 2 (PDMS : crosslinking agent=1 : 0.35) silicone rubber membranes at 30, 40 and 50℃. The phenol concentrations in the feed to be separated were 500ppm to 5wt%. Type 2 membranes were more efficient than Type 1 membranes for the separation of phenol-water mixtures. The phenol concentration of 70wt% was obtained for 5wt% of phenol concentration in the feed at 30℃ and 11wt% phenol concentration observed for 500ppm of phenol concentration in the feed at 30℃ by using Type 2 membranes.
정수빈(Su-Bhin JEONG),강경식(Gyoungsik KANG),우원식(Won-Sik WOO),김경호(Kyung-Ho KIM),손민영(Min-Young SOHN),손하정(Ha-Jeong SON),주민수(Min-Soo JOO),박찬일(Chan-Il PARK) 한국수산해양교육학회 2023 水産海洋敎育硏究 Vol.35 No.6
Given the increasing importance of Platichthys stellatus in the aquaculture industry, basic research on the immune response is needed. Therefore, we analyzed the molecular biology and expression of the Nuclear factor interleukin 3 regulated protein (NFIL3) gene, which plays an important role in innate immunity. Tissue-specific expression analysis of healthy P. stellatus showed that NFIL3 mRNA had the highest expression in gill, followed by skin and trunk kidney. In the Viral Hemorrhagic Septicemia Virus (VHSV) infection group, the tissues that were significantly expressed after infection were the trunk kidney, spleen, gills, and heart, and the strongest expression was observed in the trunk kidney. In the Streptococcus parauberis PH0710 infection group, high expression was observed in the liver on day 1, and in the intestine and brain on day 7.
돌돔에서의 참돔이리도바이러스 동역학 및 비침습적인 방법을 이용한 예찰 방법 연구
지채영(Chae-Yeong Ji),강경식(Gyoungsik Kang),우원식(Won-Sik Woo),김경호(Kyung-Ho Kim),손민영(Min-Young Sohn),손하정(Ha-Jeong Son),권문경(Mun-Gyeong KWON),박찬일(Chan-Il PARK) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.1
Red Sea Bream Iridoviral Disease (RSIVD) is a prevalent infectious disease in South Korea fish farms. Detecting the disease early and preventing its spread through continuous surveillance activities are crucial for disease prevention and management. To achieve this, we utilized a virus concentration method in seawater, providing a non-invasive means to indirectly monitor disease progression. We investigated the viral copy and viral shedding ratio in Oplegnathus fasciatus, known for their high susceptibility to red sea bream iridovirus (RSIV), under flow-through conditions. Horizontal transmission was confirmed in RSIV-infected O. fasciatus and uninfected Lateolabrax japonicus and Acanthopagrus schlegelii. In a flow-through conditions, the mortality rate of O. fasciatus increased with rising water temperature, and it was observed that the maximum viral copy was higher under high-density conditions compared to other density conditions. The study also confirmed horizontal transmission between RSIV-infected O. fasciatus and uninfected L. japonicus and A. schlegelii.
강도다리(Platichthys stellatus) zinc finger protein 703 (ZNF703) 유전자의 분자적 특성 및 발현 분석
장세린(Se-Rin JANG),강경식(Gyoungsik KANG),우원식(Won-Sik WOO),김경호(Kyung-Ho KIM),손민영(Min-Young SOHN),손하정(Ha-Jeong SON),주민수(Min-Soo JOO),박찬일(Chan-Il PARK) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.1
Zinc finger protein (ZNF) is widely expressed in eukaryotes and is involved in a number of important biological processes such as cell differentiation, proliferation and apoptosis. ZNF703 is one of the transcription factors that regulates the expression of multiple genes involved in transcription modulation, cell proliferation, cell cycle regulation, and signaling pathway regulation. However, studies on the immune response of ZNF703 after pathogen infection in fish are lacking. We analysed the coding sequence (CDS), genomic structure, and temporal variations in the mRNA transcription of ZNF703 after challenge with viral hemorrhagic septicemia virus (VHSV) and Streptococcus parauberis PH0710 in starry flounder (Platichthys stellatus) (Ps). PsZNF703 was confirmed to have a NLZ1 domain and ZNF C2H2 domain. The strongest expression of PsZNF703 mRNA in healthy starry flounder was observed in the gills. The expression pattern of PsZNF703 mRNA after infection with pathogens was significantly up-regulated in the spleen, liver, and intestine 12 h post-VHSV injection (***p < 0.001). After infection with S. parauberis PH0710, the PsZNF703 mRNA expression pattern was up-regulated in almost all major tissues, whereas it was significantly down-regulated in the gills and heart. Our results indicate that PsZNF703 may be involved in the host immune response to starry flounders.
국내 유통 중인 주요 미끼용 수산생물에 대한 병원체 분석 및 냉동제품의 전염성 조사
김인구(In-Gu KIM),강경식(Gyoungsik KANG),우원식(Won-Sik WOO),김경호(Kyung-Ho KIM),손민영(Min-Young SOHN),손하정(Ha-Jeong SON),이재영(Jae-Young LEE),박찬일(Chan-Il PARK) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.2
With the increasing fishing population, there is a growing demand for bait, leading to an expansion in the use of baitfish. However, there is a concern that baitfish carrying diseases may introduce infections into domestic water systems. In this study, various samples of baitfish, crustaceans, annelids, and mollusks were analyzed for the presence of 21 diseases registered in the World Organization for Animal Health (WOAH) Aquatic Animal Health Code. The disease analysis results revealed the detection of White spot syndrome viruses (WSSV) and Acute hepatopancreatic necrosis disease (AHPND) in certain shrimp samples. WSSV and VpAHPND were detected 5 out of 10 analysis, with detection rates ranging from 3% to 100%. The study also examined the detection rates of these diseases in case of positive reactions. To assess the infectivity of WSSV, artificial infection experiments were conducted. The results of this research can serve as foundational data for the establishment of preventive measures against diseases associated with baitfish in aquaculture.