s e o u l i n t e r nat i o na l s c h o o l
Tiger Times VO L U ME X LV I I I
September/October 2016
ISSUE 2
TT O N L . O RG
DMZ Eco Club Discovers New Biomarker Written by Angela Choe Photos courtesy of Nuri Choi
After years of civil war, a strip of land along the 38th parallel was used to divide North and South Korea. Although initially created as a buffer zone, this 160-mile long and 2.5-mile wide territory, called the demarcation line or De-militarized Zone (DMZ), now serves more than a political purpose. Free from all human intervention, the DMZ has evolved into what researchers deem a biodiversity-rich area. Recently, a group of students from SIS conducted research in this area, discovering and publishing findings on the local water pollution and evaluating potential solutions. The DMZ Eco Club is composed of five to six students per grade level who are given the opportunity to explore the DMZ terrain firsthand. Members mainly collect background information and take photos in their freshmen year, then transition into research during sophomore year, when they begin learning laboratory and research
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techniques. Collected data is published during their junior year, after they complete their research. “I think the DMZ club requires a lot of dedication from all of the members because going into the DMZ itself is a very burdensome task,” said Jeffrey Heo (11), a member of the DMZ Eco Club. “The background information that we collected during our freshmen year paid off as the information was very useful to the research we did in our sophomore year.” The members of the club have discovered an abundant amount of suspended pollutants and total organic carbons (TOC) in the streams in the tong-bat of Tongil-chun. The members have determined that the pollutants can cause differences in the gene expressions of organisms. The Daphnia magna gene, is one of many genes that can be used to monitor ecological conditions and water quality. According to
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Harry Kwon (11), member of the DMZ Eco Club, the club measured the gene expression for 15,000 Daphnia magna genes and compared them to the expression of genes found in other areas. With enough background research, members were able to discover a new gene amongst the Daphnia magna sample. “The research process is very complex because it involves the handling of fragile organic molecules such as DNA, RNA, and enzymes in a lab environment,” said Sohee Ahn (11), member of the DMZ Eco Club. “A lot of precision and time is required for the data to be accurately processed.” Members of the DMZ Eco Club also collected photos of the DMZ, which were displayed in the school atrium for students and teachers to view. The display was held for a week, during which members explained to teachers the implications of the photos and the ways in which the local
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ecology differed from the environment outside of the DMZ. The photo exhibition also informed to teachers and students about the progress of the research paper. However, according to Harry, the turnout was lower than expected. According to Sohee, only one or two teachers came by, disappointing members of the club. “I think the DMZ exhibition is a good way for students to understand the necessity of nature,” said Alyssa Shelby, environmental science teacher. “The discovery of a new gene amongst the Daphnia is very intriguing and surprising. I hope the best for the members of the DMZ Eco Club.” At this time, no results have been released or published regarding their experiment, but all members are optimistic about their study’s future prospects. Club members are diligently working to complete their research and are looking forward to publishing their findings.
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