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새우조망을 이용한 금강 하구역 어획물의 계절별 종조성 및 군집분석
이선길 ( Sun Kil Lee ),최문성 ( Moon Seong Choi ),서영일 ( Yeong Il Seo ),이재봉 ( Jae Bong Lee ) 한국어업기술학회 2014 수산해양기술연구 Vol.50 No.4
Seasonal variations in species composition of catches were explored using seasonal samples caught by shrimp beam trawl in the Geum river estuary in 2011. During the study period, total catches were collected 91 species as fish 47 species, crustacean 28 species, mollusca 4 species, gastropoda 5 species, shellfish 3 species and others 4 species. The dominant species were Exopalaemon carinicauda, Eriocheir leptognathus, Palaemon gravieri, Mugil cephalus, Acanthogobius hasta, Cynoglossus joyneri, Pennahia argentata and Coilia nasus. The amount of species in spring and summer was higher than in autumn. The diversity index (H``) was 0.43~0.96, evenness index (EI) was 0.14~0.25, and richness index (RI) was 1.54~4.25. Using cluster analysis 91 species were divided into 4 groups. Group I appeared mainly in spring and summer. Group II appeared only in summer. Group III appeared in winter and spring, and Group IV in spring and autumn.
이선길 ( Sun Kil Lee ),서영일 ( Young Il Seo ),김주일 ( Joo Il Kim ),김희용 ( Hee Yong Kim ),최문성 ( Mun Sung Choi ) 한국어류학회 2011 韓國魚類學會誌 Vol.23 No.3
To investigate seasonal and yearly variation of fishes composition in Yeoja Bay of Korea, fisheries survey were carried out using beam trawl from 2006 to 2009. A total of 44 fish species were collected. The major dominant species were Pennahia argentatus, Thryssa adelae, Thryssa kammalensis and Cynoglossus joyneri, which were occupied over 63% total individuals, and 50% of wet weight. The diversity index (H`) was about 1.62 (1.46~1.77) by seasons, and seasons of similarity by fishes were divided into two groups, which were March with December and June with September. ANOVA test showed that there were not significant difference between individuals and catch weight (kg) per unit area (km2) by year and season, except for catch weight per unit area by season.
한국 진해만 해역에 분포하는 개조개, Saxidomus purpuratus의 재생산 연구: 산란 및 군성숙각장
이선길 ( Sun Kil Lee ),장대수 ( Dae Soo Chang ),김종빈 ( Jong Bin Kim ),박미애 ( Mi Ae Park ) 한국어업기술학회 2013 수산해양기술연구 Vol.49 No.4
This study investigated purplish Washington clam, Saxidomus purpuratus on its gonadal development, reproductive cycle and shell length (age) at 50% female group maturity from January to December 2011 in Jinhae Bay, Korea. This species is dioecious. The gonad index (GI) began to increase in January, reached the maximum value in May and to decrease in June, reached the minimum value in September then to increase slowly in October again. The reproductive cycle of the clams can be divided into five successive stages: the early active stage (Ea, from February to March), the late active stage (La, from January to March and October to December), the ripe stage (R, from January to May), the spawning stage (S, from June to December) and the degenerative and inactive stage (Ia, from January to February and November to December). The spawning periods were from June to December and the main spawning periods were from July to October. The shell length at 50% female group maturity (SL50) was estimated to be 63.6 mm, which can be converted as sexual maturity age of 2.2 year.
Young-Il Seo(서영일),Joo-Il Kim(김주일),Taeg-Yun Oh(오택윤),Sun-Kil Lee(이선길),Jong-Hwa Park(박종화),Hee-Yong Kim(김희용),Eun-Seob Cho(조은섭) 한국생명과학회 2010 생명과학회지 Vol.20 No.3
본 연구는 2008년에서 2009년 동안 속초, 월성, 거제도, 여수, 거문도, 서남해역에서 채집된 대구어미를 대상으로 유전적 집단구조를 조사했다. 시험에 사용된 28 마리 중에서 8 종류의 haplotype이 발견되었다. 상호 유전자 비교시 0.2-2.2% 범위에서 유전자 변이율을 볼 수 있었다. Ga1 haplotype은 월성, 거제도, 여수, 거문도, 서남해역에서 모두 발견된 haplotype으로 우리나라 대구의 가장 대표적인 haplotype인 것으로 추측된다. 그러나 Ga2, Ga3, Ga6, Ga7 haplotype은 속초에서만 나타났다. 또한 유전자 상호관계 분석에서도 속초에서 나타난 haplotype은 독립적인 개체군을 형성하고 있으면 다른 haplotype과의 유연 성립율은 50% 이하로 나타났다. 속초를 제외한 나머지 지역의 지역적 유전거리는 -0.0123에서 -0.0423이면 유전적 이동률은 거의 무한대로 보여 동일한 집단을 형성하고 있는 것으로 보였다. 그러나 속초와는 현저한 유전적 거리를 나타내고 있고, 속초의 유전적 다양성이 가장 낮게 나타나서 속초의 대구 개체군은 소형임과 아울러 다른 지역관의 유전적 이동이 거의 차단된 것으로 보인다. 따라서 우리나라에서 어획되는 대구 계군은 속초를 제외하고 활발한 유전적 이동으로 동일한 유전적 집단을 형성하고 있는 것으로 보인다. To assess population structure and genetic diversity among the Pacific cod (Gadus macrocephalus), we investigated mtDNA COI gene sequences of 7 populations. Samples were obtained from Sokcho, Wolsung, Geojedo, Yeosu, Geomundo and Westsouth in 2008 and 2009 (n=28). The sequence analysis of 28 individual samples showed 8 haplotypes, ranging in sequence divergence by pairwise comparisons from 0.2 to 2.2% (1 bp 11 bp). The Ga1 haplotype was found in Wolsung, Geojedo, Yeosu, Geomundo and Westsouth, and was regarded as the main haplotype of Korean Pacific cod. Ga2, Ga3, Ga6 and Ga7 haplotypes were found only in Sokcho. In the PHYLIP analysis, 8 haplotypes formed two independent groups: cladeA consisted of Ga2, Ga3, Ga6 and Ga7 haplotypes, whereas cladeB contained Ga1, Ga4, Ga5 and Ga8 haplotypes. The genetic relationship between the two groups was weakly supported by bootstrap analysis (<50%). In pairwise comparisons between 6 populations other than that from Sokcho, a very high per generation migration ratio (Nm=infinite) and a very low level of geographic distance (FST=-0.0123-(-0.0423)) were observed. The estimates of genetic distance between Sokcho and the other localities were all statistically significant (p<0.05, p<0.01, p<0.001), indicating a limited mtDNA-based gene flow between Sokcho and other regions. The finding of the lowest genetic diversity in the Sokcho population (nucleotide diversity=0.00589) may be a result of relatively small population size and interrupted gene flow to other localities. Consequently, the overall considerable migration of Pacific cod population in Korea caused a genetically homogeneous structure to form, although a distinct population was found in this study.
뇌파검사 자료를 기반으로 한 과학영재 판별 지수(G-Index) 개발과 적용
김경화(Kyung-Hwa Kim),김규한(Kyu-Han Kim),이선길(Sun-Kil Lee),허명(Myung Hur),김용진(Yong-Jin Kim) 한국영재학회 2005 영재교육연구 Vol.15 No.1
과학영재 판별의 대안적 도구로서의 가능성을 찾아보기 위하여 영재 집단과 일반 집단 의 뇌파검사를 실시하였다. 뇌파의 주성분 공간분석법인 PCA분석 자료의 집단별 차이점 을 이용하여 과학영재 판별지수(Gifted Index: G-Index)를 개발하고 과학영재 판별의 가 능성을 탐색하여 보았더니 76% 수준에서의 판별 효과를 얻을 수 있었다. 또 과학영재 판 별이 가능한 기타 판별도구 성취도들 간의 상관관계를 바탕으로 하여 회귀분석을 시도 한 결과는<Logit(영재여부)=-57.510+(-.018)TTCT검사+(.057)IQ검사+(1.916)장의존/ 장독립검사+(.682)공간지각능력검사+(.088)실험능력평가+(.034)G-Index>로 나타났다. 이를 근거로 한 영재 판별 확률식을 제안하면 P= 1/1+e 와 같고 이 회귀분석식을 적용한 결과 영재 집단 내에서의 판별 가능성이 95% 수준에서 매우 우수하였다. 따라서 과학영재 판별의 대안적 도구로서의 뇌파검사와 G-Index의 유용성을 확인할 수 있었다. In this study we investigated the adequacy of tools for distinction gifted students through the comparison these mutual relation on the basis of data, like paper test, the depths interview score, and the rest data((TTCT: Torrance Tests of Creative Thinking, IQ test, FASP: Find A Shape Puzzle, V.T: Visualization Tests and Exp: experimental ability test), and analysis data of EEG test for examining the adequacy of tools for identification gifted students. So, we developed Brain Wave gifted Index(G-Index) for finding another distinction ability as using brain waves data. The standard of index development use gifted brain characteristic in closed-eyes rest state which is judged like that characteristic of distinction between gifted and normal students is the most clear and consistence. That is, the degree of unified pattern between each object and gifted PCA pattern was defined by Pearson method which added spatial mutual index to weight concept. This refer to mean number of spatial PCA pattern. Searching for the possibility of distinction gifted gave distinction effect in 76%. The result of regression analysis on the basis of mutual relation between the rest data is <Logit(gifted or normal) =-57.510+(-.018)TTCT+(.057)IQ+(1.916)FASP+(.682)V.T+(.088)experiment test+(.034)G-Index>. The probability formula for distinct gifted group is as follow. P= 1/1+e The result of this calculation showed that probability for distinct in gifted group was very good(95.0%). On the basis of upper result, tools for identification gifted students should be estimated as using many-sided estimation data whatever possible. And following study about development, and operation of tools for distinction suitable to gifted student in science should be progressed.