한국 서남해안 우이도의 해조상과 (海藻相) 군집구조

최도성,김광용,이욱재,김지희 ( Do Sung Choi,Kwang Young Kim,Wook Jae Lee,Jee Hee Kim ) 한국환경생물학회 1994 환경생물 : 환경생물학회지 Vol.12 No.2

Marine algal flora and structure of benthic algal community at intertidal zone of Uido Island on the West-southern coast of Korea have been investigated from August, 1992 to August, 1993. A total of 142 species, 3 blue-green, 21 green, 26 brown, 92 red algae, were identified through this study. Algal vegetation of this islands belong to inland sea area is characterized by temperate flora. The number of species, biomass, and coverage were the highest at the low tidal zone and the lowest in high tidal zone or steep gradient region. Among three transects, they were higher at transect C than transect A and B. This is presumably due to the fact that they significantly influenced by tidal level, intertidal gradient, and kind and stability of substarata. The dominant species in coverage were Gloiopeltis furcata, Gelidium divaricatium, Myelophycus simplex at high and middle tidal zones and Sargassum thunbergii, Corallina pilulifera, Ulva pertusa, Myelophycus simplex, Hizikia fusiformis at low tidal zone, which are common species at intertidal flora of west-southern coast of Korea.

한국산 홍조 몽우리두층게발에 관한 분류학적 연구

최도성,Choi , Do-Sung 한국조류학회(藻類) 2007 ALGAE Vol.22 No.3

Morphological and anatomical characters of Amphiroa rigida Lamouroux were investigated with field materials and taxonomic accounts are given to the species. The species grows in the subtidal zone of Cheju island, and is characterized by semiendophytic habit in Hydrolithon onkodes. The species is well defined by about 1 cm height, loosely tufted thallus with irregular branches, two-tiered geniculum with equal length, geniculum tier connecting by oblique end walls, and conceptacles buried in cortices of intergeniculum. Korean isolates have etrasporangial, male and female conceptacles. The structure and developmental patterns of conceptacles are very similar to those shown in previous studies.

도시하천 생태 체험 프로그램 적용이 초등학생의 환경 감수성에 미치는 영향

배효선(Hyo-Seon Bae),최도성(Do Sung Choi),김영록(Young Rock Kim) 한국환경교육학회 2011 環境 敎育 Vol.24 No.1

The goal of this study is to investigate the effect of ecological experience program at the urban stream on the environmental sensitivity of elementary school students. In order to perform this study, two classes of 6th graders of M elementary school in Gwangju were selected and divided into two groups; one groups was the experimental group that undergoes ecological experience program at the Gwangju River, and another group was the control group that studied about environment in the classroom. The results of this study were as following. First of all, the experimental group has more influence on the environmental sensitivity than the control group. Secondly, the ecological experience program at the urban stream can be the effective method to build the environmental sensitivity of elementary school students. In conclusion, the results are showing that the ecological experience program at the urban stream helps elementary school students to change their environmental sensitivity in positive ways, also it gives idea that how to protect the environment and what they actually can do.

현행 전국과학전람회에 실태 및 개선방안에 관한 연구

최도성(Do Sung Choi),한효의(Hyo Eui Han) 한국초등과학교육학회 2001 초등과학교육 Vol.20 No.1

The National Science Fairs has been held in every year for the promotion of science and technology and scientific civil life. The purpose of this study is to survey the current problems in National Science Fairs by making up a question and to improve them. The study makes up a questionnaires about the existing Science Fairs to the teachers who have submitted their works to the Science Fairs and suggest the ways of improvement. The result of questionnaires is that little availability of reference materials, difficulty of paying proper attention to regular classes because of frequent travels, and absence of experimental devices and experimental rooms are perceived as major obstacles in preparing for the exhibition. Respondents teacher also pointed out some problems with the current organization of the exhibition; nonvoluntary selection process for the potential authors, separation of research content from regular teaching materials, unrealistically high standard, low participation rate of teachers, so many exhibited works, lack of professionalism in the screening process. The majority however, agreed that the exhibition event should be continuously done, after remedial measures have been taken about the problems. First, the side of science education is emphasized in a purpose of the science fairs to let activity related to science fair be closely connected with school education. Second, students have to be divided according to grade. Third, research level have to be set not too higher than regular instruction content. Fourth, hand book related to science fairs have to be manufactured and spread. Fifth, data of local science fair have to be arranged. Sixth, judging section have to be subdivided and people related to science education have to be included to a judge. Seventh, excellent works have to be support to participate in ISEF.

제7차 교육과정에 따른 초등학교 과학과 학습자료의 분석

최도성 ( Do Sung Choi ),김명호 ( Myung Ho Kim ),김정길 ( Jeong Kil Kim ),김석중 ( Seog Joong Kim ),송판섭 ( Pan Seob Song ),한광래 ( Kwang Lae Han ) 한국초등과학교육학회 2004 초등과학교육 Vol.23 No.4

초등학교 자연과 ' 작은생물 ' 단원의 수업 실태 분석

최도성(Do Sung Choi),최규식(Kyu Sik Choi),남철우(Chul Woo Nam),김정길(Jong Kil Kim),김석중(Seok Joong Kim),송판섭(Pan Seob Song),한광래(Goang Lae Han),한효의(Hyo Eui Han) 한국초등과학교육학회 2000 초등과학교육 Vol.19 No.1

The purpose of this study is to survey the instructional state of the unit `Small Living Things` in the Elementary School Science. For this study, 100 teachers were surveyed on teaching-learning practices. More specifically, questions were asked on the degree of accomplishing instruction objectives, frequency of field. study, experimental preparation, alternative instructional methods, amount of preparation, availability of reference books for teachers and availability of information materials on the Kwangju region. Our results show that teachers find the objectives related to the collection of living things for class experiments and the task of growing and observing them the most difficult to accomplish. It was reported that 38% of teachers have actually conducted field trips. The obstacles listed in going out on field study range from lack of knowledge of appropriate places, lack of time, to safety concerns. The most difficult problem in teaching this unit was preparing proper instructional materials, regardless of teacher`s gender, career, and interest. Most respondents let children provide the experimental subjects. Teachers with collection experience tend to provide for the experimental materials themselves. Our Analysis also reveals that more than 70% of the respondents do not have adequate knowledge of the species dealt with in the unit. Gender, career, and interest area of the teachers did not make any difference (p$lt;.05). In the case that proper experimental subjects have not been prepared, VTR, textbooks, and charts were reported as the most frequently used alternative instruction aids. The level of content and amount of knowledge contained in this unit were found to be appropriate. Information on instruction materials and experiment observation were obtained through the teaching manual or periodicals (58%), information materials on the region(20%), and fellow teachers (12%). Reference books for teachers and materials on the region are perceived to be inadequate in order of importance in the areas of preparation method, level-wise learning guide, experimental observation, and information on species covered in text. Overall, it was judged that the highest concern was with obtaining experimental materials, and teacher`s reference books and materials on the region need to be reinforced to allow teachers to more fully utilize them. Development and distribution of proper instruction-learning materials to the children`s level is also required.

한국산 홍조 (紅藻) 산호말과 (科) 애기산호말속 (屬) ( Jania ) 식물에 대한 분류학적 검토

최도성 (Do Sung Choi) 한국식물학회 1993 Journal of Plant Biology Vol.36 No.2

Taxonomic accounts are given to four species of Jania, Rhodophyta from Korea; J. adhaerens Lamouroux, J. nipponica (Yendo) Yendo, J. radiata (Yendo) Yendo and J. yenoshimensis (Yendo) Yendo. J. adhaerens is an epiphyte and characterized by massive tufts with decussate-dichotomous branches. J. nipponica growing on the rocks is different from other plants by erect tuft with lowangle dichotomouse branches. J. radiata has a small epiphytic thallus (5 mm) and flat, flabellate-dichotomous branches. And J. yenoshimensis grows on the rocks in sublittoral regions and has compressed, fastigate, regular-dichotomous branches. This species is distinguished from others by the formation of slender moniliform branchlets. Among these, J. yenoshimensis is first reported in Korea in this study.

돼지풀속(Ambrosia) 식물 2종에 대한 분류학적 검토

최도성 ( Do Sung Choi ) 한국환경생물학회 2005 환경생물 : 환경생물학회지 Vol.23 No.2

N/A This study carried out to certify of taxonomic delimitation in A. artemisiaefolia, A. trifida, A. trifida for. integrifolia, and A. psilostachya in the area of literature and experiment. A. psilostachya was not a vestige of naturalized in Korea and A. trifida and A. trifida for. integrifolia didn`t have any valuable differences of morphological and molecular biological experiment. I arranged that naturalized species in Ambrosia are A. artemisiaefolia L. and A. trifida L. in Korea.

제주산 홍조 게발속 (屬) ( Amphiroa ) 식물에 대한 주해

최도성(Do Sung Choi),이인규(In Kyu Lee) 한국식물학회 1989 Journal of Plant Biology Vol.32 No.4

Morphotaxonomic accounts are given to four species of Amphiroa, Rhodophyta from Cheju Island; A. valonioides Yendo, A. itonoi Srimanobhas et Masaki, A. rigida Lamourous, and A. misakiensis Yendo. A. valonioides has one-tiered genicula of unequal length and is semiendophytic in other Amphiroan species, whereas A. rigida has two-tiered genicula of equal length and is semi-endophytic in non-articulated coralline alga. A. misakiensis has five to thirteen-tiered genicula of unequal length and forms tufts on rocks where the branches are often recumbent. A. rigida is introduced for the first time to Korean flora.

한국산 홍조 (紅藻) 참보라색우무 ( Symphyocladia latiuscula ( Harvey ) Yamada ) 의 형태와 생식

최도성(Do Sung Choi),이인규(In Kyu Lee) 한국식물학회 1991 Journal of Plant Biology Vol.34 No.1

The morphotaxonomic characters and life history of Symphyocladia latiuscula (Harvey) Yamada were investigated with field and laboratory culture materials. The species is well defined by a 5-15 ㎝ hight, entirely corticated thallus and congenital fusion of 5-7 segments between main axis and laterals. Although all the reproductive structures are basically similar to those of other species of the genus, it is characteristic that the pinnulae are transformed into the flabellated tetrasporangial stichidia. Vegetative trichoblasts are known to be absent in the Pterosiphonieae, but their presence in S. latiuscula does not accept its taxonomic position in that tribe. As a result, the occurrence of vegetative trichoblast is not useful for a taxonomic character to distinguish the tribes. The species shows a Polysiphonia-type life history involving a dimorphic alternation of gametophytes and sporophytes in culture and field. It grows below the middle intertidal zone in all the coasts of Korea throughout the year, although fertile plants are normally found during the summer months.