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매개 중심성을 이용한 해양 플라스틱 폐기물의 경로 예측 및 효율적인 수거지점 제안
전연선(Yeon Seon Jeon),홍민지(Min Ji Hong),박무규(Moo Kyu Park),최용상(Yong Sang Choi) 大韓環境工學會 2015 대한환경공학회지 Vol.37 No.7
우리나라에서 플라스틱으로 인한 해양오염이 심각함에도 불구하고 경로 예측 및 수거 방안에 대한 연구는 찾아보기어렵다. 본 연구에서는 미국 해양대기청(National Oceanic and Atmospheric Administration, NOAA)의 해양 표층해류 시뮬레이터(Ocean Surface CURrent Simulator, OSCURS)를 이용하여 2004년부터 2013년까지 계절별로 동ㆍ서해로 유입된 플라스틱 폐기물의 이동 경로를 예측하였고, 매개 중심성 분석을 통하여 효율적인 수거지점을 제안하였다. 효율적인 수거지점의 대부분이 계절과 상관없이 연안에 형성되었고, 그중에서도 동해는 울진 연안, 서해는 새만금-신안 연안이 플라스틱 폐기물을 효율적으로 수거할 수 있는 지역이었다. Korea severely suffers from plastic-induced ocean pollution, but only few studies predicted the trajectory of marine plastic debris and provided their collection method. This study used Ocean Surface CURrent Simulator (OSCURS) of National Oceanic and Atmospheric Administration (NOAA) in order to predict the trajectories of marine plastic debris flowing into the East Sea and Yellow Sea for each season during 2004 to 2013. Results suggest that efficient collection hubs through the high betweenness centrality index. Most hubs were located in the seashores regardless of season, suggesting the seashore of Uljin for the East Sea and the seashore between Saemangeum and Shinan for the Yellow Sea as the most efficient hubs.
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한국고유종 동방종개 Iksookimia yongdokensis (Pisces: Cobitidae)의 서식지와 연령, 산란기 특징
고명훈 ( Myeong-hun Ko ),전연선 ( Yeon Seon Jeon ),원용진 ( Yong-jin Won ) 한국어류학회 2016 韓國魚類學會誌 Vol.28 No.4
한국고유종 동방종개 Iksookimia yongdokensis의 생태적 특성을 밝히기 위해 2015년 3월부터 2016년 2월까지 경상북도 영덕군 축산군의 축산천에서 서식지와 연령, 산란기 특성 등을 조사하였다. 연령별로 서식지를 분석한 결과 당년생 (0+)과 1~4년생은 구별되었는데, 당년생은 유속이 느리고 (2.4±2.09 cm/sec) 수심이 낮으며 (29.2±7.57 cm) 모래 바닥 (하상크기 0.6±1.44 cm)에 주로 서식하였지만, 1~4년생은 유속이 비교적 빠르고 (3.8~4.6 cm/sec) 수심은 깊은 (50~70 cm) 자갈과 돌 바닥 (하상크기 5.5~6.1 cm)에 주로 서식하여 차이를 보였다. 전장빈도분포도로 연령 (암컷)을 추정한 결과, 산란기인 6월에 35~64 mm는 만 1년생, 65~94 mm는 만 2년생, 95~119 mm는 만 3년생, 120~145 mm은 만 4년생 이상으로 추정되었다. 생후 13개월 후에 수컷 가슴지느러미 기조에 골질반 (lamina circularis)이 형성되어 암·수가 구별되었고, 성비 (♂/♀)는 0.69였으며, 암컷이 수컷보다 10~30mm가 더 컸다. 산란기는 생식소성숙도 (GSI)로 추정한 결과 6~7월 (수온 20~25℃)이었고, 포란수는 2,292±618개, 성숙난 크기는 1.46±0.02mm였다. The habitat, age and spawning characteristics of the Korean eastern spined loach, Iksookimia yongdokensis, were investigated to obtain baseline data for its ecological characteristics in the Chuksancheon (stream), Yeongdeok-gun, Gyeongsangbuk-do, Korea. The difference between the habitats of juveniles (0+) and 1~4 year old loaches was that juveniles mainly inhabited sandy bottoms (substratum particle size 0.6±1.44 cm) with very slow velocities of water current (2.4±2.09 cm/sec) and low depths (29.2±7.57 cm), whereas 1~4 year old loaches inhabited pebble and cobble bottoms (substratum particle size 5.5~6.1 cm) with relatively fast velocities of water current (3.8~4.6 cm/sec) and deep depths (50~70 cm). The age groups for I. yongdokensis (female) estimated by the frequency distribution of total length in the spawning season (July) indicated that the 35~64 mm is 1-year old, the 65~94 mm group is 2-year old, the 95~119 mm is 3-year old, and the 120~145 mm is more than 4-year old. The sex ratio (♂/♀) was 0.69, and females were 10~30 mm larger than males. The lamina circularis at the base of the pectoral fins in males, a secondary sexual characteristic, formed at the 13th month after hatching. The spawning season according to the gonadosomatic index (GSI) was June to July with water temperatures of 20~25°C. The average number of eggs was 2,292±618, with a diameter of 1.46±0.02 mm for mature eggs.
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제주도, 한반도 및 대만 내 팔색조의 생태적 서식특성 분석을 위한 유전적 접근
김은미 ( Eun Mi Kim ),전연선 ( Yeon Seon Jeon ),김세재 ( Se Jae Kim ),강창완 ( Chang Wan Kang ),원현규 ( Hyun Kyu Won ),정길상 ( Gil Sang Jeong ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2014 한국환경복원기술학회지 Vol.17 No.1
A Fairy Pitta is a bird known to breed only in mainland China, Taiwan, Japan and Korea and is listed as Vulnerable in the IUCN Red List. We carried out a DNA analysis to contribute to conserve the genetic diversity of Fairy Pitta. 32 samples were collected at Jeju Island, the Korean Peninsula and Taiwan from 2004 to 2013 and DNA was extracted from them and several sequences were amplified it through PCR. And then we performed the population genetic analysis. We found there was a transversion between nucleotide sequences at CO1 gene, while there was no changes at Cyt-b gene. And we confirmed the polymorphism from two genes was caused from genetic drift not from selection. Through this analysis, the group within the Peninsula was found bigger than other two groups based on the analysis of CO1 gene, and the group from Taiwan was found bigger than other two groups through the analysis of Cyt-b gene. The population genetic structure of mitochondria gene of three group was showing CO1 gene had 5 haplotypes and Cyt-b gene had 6 haplotypes. Haplotype 2 in CO1 gene was found in three group and many individuals of samples had this haplotype. Like CO1 gene, haplotype 2 in Cyt-b gene was found in three group and was included in plenty of individuals. Other haplotypes were not overlaped and broke off among the three groups. To prevent from the extinction of Fairy Pitta and to obtain the genetic diversity, we need to compare with other regional group such as Japan, China and perform additional research in the non-breeding area.
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DNA 분석에 의한 팔색조의 암수 구분 및 암수별 피해 현황 그리고 크기 차이에 관한 연구
김은미 ( Eun Mi Kim ),전연선 ( Yeon Seon Jeon ),정길상 ( Gil Sang Jeong ),김세재 ( Se Jae Kim ),강창완 ( Chang Wan Kang ),오미래 ( Mi Rea Oh ),노푸름 ( Pu Reum Noh ),원현규 ( Hyun Kyu Won ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.8
The differentiation of sex is important for species preservation. However, Fairy Pitta is sexually monomorphic and sex of an individual is indistinguishable with its external characteristics. We determined the sex of Fairy Pitta through DNA analysis and investigated the causes and time of injury and mortality and the size based on sex. We collected 21 samples at Jeju Island, Korean Peninsula from 2004 to 2013 and extracted DNA from them and amplified chromo helicase DNA-binding gene from Z and W chromosomes through Polymerase Chain Reaction (PCR). We confirmed their sex with the banding pattern through Agarose gel electrophoresis, i.e. male (ZZ): one banded and female (ZW) two banded. We distinguished the sex of 17 of 21 samples resulting in 9 males and 8 females. Most casualties were recorded in adult of both sexes. Causes of injury and mortality proved that female casualties occurred from window strikes, dehydration, car accident, predation by natural enemies, and male occurred from window strikes, car accident and dehydration. The time of injury and mortality in adults differ by sex. There was no difference between sexes in any of the six size parameters. As the time of injury and mortality differ by sex, the survey on the role and ecological nature by sex in breeding season must be carried out in the future. External measurements may not be reliable for sexing of Fairy Pitta and other traits such as vocal or characteristics are required to identify the sex of individuals in the field.
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