• Title/Summary/Keyword: Gangwondo

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Feeding Habits of the Black-edged Sculpin Gymnocanthus herzensteini in the Coastal Waters off Mukho, Gangwondo of Korea (강원도 묵호 연안에서 출현하는 대구횟대(Gymnocanthus herzensteini)의 식성)

  • Yang, Jae Hyeong;Yoon, Sang Chul;Park, Jeong-Ho;Yoon, Byoung Sun;Choi, Young Min;Lee, Jae Bong
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.2
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    • pp.168-175
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    • 2013
  • The feeding habits of the black-edged sculpin Gymnocanthus herzensteini were studied using 944 specimens collected from February 2011 to January 2012 in the coastal waters off Mukho, Gangwondo, Korea. The G. herzensteini ranged from 11.8 to 36.3 cm in total length (TL). The percentage of empty stomachs in G. herzensteini was 40.2%, and the main prey items were Pisces, Euphausiasea, and Macrura. The smallest size group (11.8-15.0 cm TL) consumed mainly Polychaeta and Amphipoda. The quantity of prey increased in proportion to sculpin size. The composition of prey items and feeding habits of G. herzensteini exhibited seasonal fluctuations, that is, the main prey items during spring were Euphausiasea, whereas those during other seasons were Pisces.

Feeding Habits of the Pacific Cod Gadus macrocephalus in the Coastal Waters off Jumunjin, Gangwondo of Korea (강원도 주문진 해역에 출현하는 대구(Gadus macrocephalus)의 식성)

  • Yoon, Sang-Chul;Yang, Jae-Hyeong;Park, Jeong-Ho;Choi, Young-Min;Park, Jong-Hwa;Lee, Dong-Woo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.45 no.4
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    • pp.379-386
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    • 2012
  • The feeding habits of the Pacific cod Gadus macrocephalus were studied by analyzing the stomach contents of 423 specimens caught by coastal gill net in the coastal waters off Jumunjin, Gangwondo, Korea, from January to December, 2011. The size of Pacific cod ranged from 31.0 to 86.5cm in total length (TL). The proportion of empty stomachs was 25.1%. The main prey items were Macrura, Pisces, and Cephalopoda. In order of abundance, the most dominant species of Macrura, were Pandalus eous, Argis lar, and Neocrangon communis, and the most dominant species of Pisces, were Clupea pallasii, Actoscopus japonicus, and Glyptocephalus stelleri. Berryteuthis magister was the most dominant species of Cephalopoda. In terms of variation in feeding habits by growth, Macrura was the most important prey group for G. macrocephalus ranging in TL from 30- to 55 cm, but Pisces was the most important prey group for cod over 56 cm TL. Catch of G. macrocephalus was significantly positively correlated to catch of the three major Pisces prey species Clupea pallasii, Actoscopus japonicus and Glyptocephalus stelleri.

A study on the distribution and composition of marine floating debris in the middle part of East Sea, Korea (동해중부해역에 있어서 부유성 해양 폐기물의 분포와 조성)

  • Jo, Hyeon-Jeong;Kwon, O-Bin;Jeong, Sun-Beom
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.41 no.4
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    • pp.306-315
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    • 2005
  • The distribution and composition of marine floating debris were recorded from a training ship 'Kyeongyang' of Gangwon Provincial University at May 19-29, 2004 and Aug.24-31, 2004. The sampled area is the middle part of East Sea of Korea(the coast of Gangwondo and region of Ulleung island and Tokdo), divided into 27 unit segments on survey areas. Debris fabrication materials were categorized with 6 items using the following; styrofoam, paper & cardboard, net & rope, vinyl & plastic, floating metal & glass, man-made or natural wood. From the investigation on May,2004, total numbers of marine floating debris in the middle part of the East Sea of Korea was 996 individuals. The No. 1 and No. 2 unit segment located at south-west region of Ulleung Island showed higher density than others. The styrofoam and vinyl & plastic accounted for 72.8% of all debris fabrication materials. From the investigation on August, 2004, total numbers of marine floating debris in the coast of the Gangwondo of Korea was 2,473 individuals. The No. 13 and No. 14 unit segment located at the vicinity of Samcheok showed higher density than others. The styrofoam and vinyl & plastic amounted to 76.1%. In the coast of the Gangwondo, the vinyl & plastic showed the highest density of 6 items were 41.3% and 68.0% on May and August, respectively. The total numbers of marine floating debris on May and August were 3,399 individuals. Vinyl & plastic accounted for 59.4%(2,019 ind.) among all debris, next styrofoam 15.8%(537 ind.) and wood 11.2%(379 ind.).

Isolation of Fibrinolytic Yeasts from Korean Traditional Fermented Soybean (전통장류로부터 혈전용해 활성이 우수한 효모균주의 분리)

  • Yi, Jae-Hyoung;Heo, Nam-Kee;Choi, Byung-Gon;Park, Eun-Hee;Kwun, Se-Young;Kim, Myoung-Dong;Hong, Wun-Pyo;Yeo, Soo-Hwan;Baek, Seong-Yeol
    • Microbiology and Biotechnology Letters
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    • v.42 no.2
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    • pp.184-189
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    • 2014
  • Yeast strains demonstrating fibrinolytic activity were isolated from traditional fermented soybean in Gangwon province, Korea. The AFY-1 strain isolated from fermented soybean paste showed the highest fibrinolytic activity (3.5 U/mg protein) corresponding to a 1.75 fold higher fibrinolytic activity compared with the plasmin (2.0 U/mg protein). The optimum temperature for the growth of AFY-1 strain was $32^{\circ}C$. Analysis of 18S rRNA gene sequence and carbon source utilization pattern indicated that the AFY-1 strain shares the highest homology (99%) with Saccharomycetales sp.

Nematicidal activity of Korean native plants against root-knot nematode, Meloidogyne incognita (고구마뿌리혹선층(Meloidogyne incognita)에 대한 국내 자생식물의 살선충 활성)

  • Lim, Sang-Hyun;Zhu, Yang-Ze;Kim, Mi-Sung;Lee, Yu-Sun;Son, Jeong-Sik;Park, Dong-Sik;Hur, Jang-Hyun;Kim, Hee-Yeon;Choi, Hae-Jin;Kim, Kyung-Hee;Kim, Song-Mun
    • The Korean Journal of Pesticide Science
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    • v.8 no.4
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    • pp.353-357
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    • 2004
  • Large economic losses have been reported by root-knot nematide, Meloidogyne incognita, in Korea. However, fewy environmentally-friendly nematicide alternatives for the control of M. incognita have been developed. This study was conducted of Korean native plants to screen nematicidal activity which could be used by organic farmers. Methanol extracts (1,000 mg $L^{-1}$) from fifty-three Korean native plants were applied to 24-well tissue culture testplates containing $1\times10^2$ M incognita and the nematicidal activities were determined. Nematicidal activities of the methanol extracts in common purslain (Portulaca oleraceae L.) and water mouse-ear-chickweed (Stellaria aquatica Scop.) were 60.0% and 40.6%, respectively, compared with that of control, however, those of other forty-one plants were less than 30%. Our results suggest that the methanol extracts of common purslain and water mouse-ear-chickweed contain nematicidal active compounds.

Prioritizing Environmental Risks of Veterinary Antibiotics Based on the Use and the Potential to Reach Environment (사용량과 잠재적 환경 유출 가능성을 기준으로 한 축산용 항생제의 우선순위 결정)

  • Seo, Young-Ho;Choi, Jun-Keun;Kim, Seung-Kyeong;Min, Hwang-Kee;Jung, Yeong-Sang
    • Korean Journal of Soil Science and Fertilizer
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    • v.40 no.1
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    • pp.43-50
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    • 2007
  • Veterinary antibiotics have been widely used to increase feed efficiency, to prevent disease, and to promote growth as well as to control disease. The antibiotics administered can be excreted through the urine and feces. One of the major routes of veterinary antibiotics entering soil and water environment is via the application of animal manure to agricultural land as an organic fertilizer source. Since little is known about impacts of antibiotics on the environment, this study was conducted to prioritize the veterinary antibiotics based on the consumption and potential to reach the environment. Among 83 veterinary antibiotics consumed in Korea, ten antibiotics were used at the greater dose than 25 Mg in 2004. Potential to reach the environment was determined according to excretion rate after administered to animals and sorption affinity to soil solids after applied to agricultural land. Seventeen antibiotic active ingredients (Ais) were classified as 'High' priority in terms of the potential to reach the environment. An overall priority score was determined by combining priority score based on consumption with the degree of potential environment exposure. Twenty veterinary antibiotic AIs were classified as 'Very high' or 'High' priority requiring detailed assessment. The antibiotic AIs were identified four aminoglycosides, two macrolides, two penicillins, five sulfonamides, three tetracyclines, two quinolones, and two miscellaneous. Eight veterinary antibiotic AIs including amoxicillin, carbadox, chlortetracycline, neomycin, oxytetracycline, sulfamethazine, sulfathiazole, and tylosin were identified to have a greater priority of environmental risk in Korea.

A Study on the Site Selection for Wind Power Using GIS (GIS를 이용한 풍력발전단지 최적입지 선정방법에 관한 연구)

  • Jeon, Sang-Hee;An, Seung-Man;Choi, Young-Jean;Sung, Hyo-Hyun
    • New & Renewable Energy
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    • v.7 no.3
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    • pp.83-91
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    • 2011
  • The purpose of this study is to select appropriate location factors for wind power plant, provide detailed classification criteria, and find out appropriate sites for installing wind power plant in Gangwondo. In this study, the following 11 factors were extracted for site selection of wind power plant : wind resource, topography (valley angle, distance to the ridge), forest density, land use, preservation area, national park, Baekdu-Daegan, noise, shade, Transmission Line, and approaching roads. Each factor had relatively different level of importance so that AHP (Analytic Hierarchy Process) technique was used to calculated the weighted value per factor. For overlay analysis, classification criteria were prepared for each factor and each factor was classified into 3 grades : very appropriate, intermediate, poor. According to overlay analysis, the areas which received the highest grade (grade 5) was only in 0.16% of the total area of Gangwondo and had a tendency to exist along the mountain ridge over 600-meter elevation. Through analyzing the yearly average of wind power density, it was proved that the wind power density of areas with grade 4 or 5 had abundant wind resource over $400W/m^2$.

A Stud on the Space Organization and Composition Elements in Gangwon Gamyoung (강원감영의 공간구성과 구성요소의 건축적 특징에 관한 연구)

  • Choi, Jang-Soon
    • Journal of the Korean Institute of Rural Architecture
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    • v.7 no.2
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    • pp.31-47
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    • 2005
  • This study is to inspect and analyse the historical background, spacial organization and architectural features about the traditional government office building of Gangwon Gamyoung(the supreme local government office of Gangwondo in Chosun dynasty). The results are as follows. - Gangwon Gamyoung was located at the center of Gangwondo in consideration of distance to each small local office. And also it was located in consideration of geographical connection between Hanseong(today's Seoul). - The spatial organization of Gamyoung was divided into the three parts of entrance space, government office building space and backyard space. The entrance space was composed of three gates(Pojungru-Jungsammun-Naesammun). The government office building Space was consisted of business and living building as center of Sunhwadang(the main office building). And the backyard space was composed of Yonji(pond), Jungja(bower), and so on - The way to enter the space of Gamyoung follows the order from Pojungru(the first & outer main gate with a bower), Jungsammun(the second & intermediate gate), Naesammun(the third & inner gate) to Sunhwadang at last. - There were a beautiful Yonji(pond) which to be rectangular type and to have a round island with Bongraegak(bower) at Gamyoung backyard, the drain conduit and pedestrian road covered with pebble in the ground.

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A Comparative Analysis of Eating Habits of Female Middle School Students in Gangwondo, Korea, According to Stress Levels (강원도 일부지역 여중생에서 스트레스 수준에 따른 식행동 비교분석)

  • Park, Yonghyun;Lee, Ji-yoon;Jeong, Eun;Kim, Bok-hee
    • The Korean Journal of Community Living Science
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    • v.26 no.3
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    • pp.565-573
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    • 2015
  • This study examines the relationships between stress and eating habits of adolescents based on the assumption that adolescents require large amounts of nutrients and that eating habits affect their physical development, academic achievement, and emotional development. For this purpose, 213 adolescents in Gangwondo, Korea, were surveyed. Many studies have reported that stress causes changes in eating habits and affects health status. Based on the dietary action guide scores according to stress categories, eating instant foods less was significant (p<0.001), eating fast foods less was significant (p<0.05), and have soft drinks less was significant (p<0.001). The results suggest the importance of balanced nutrition based on the formation of right dietary habits for adolescents. Good nutrition can be determined through right knowledge of nutrition and dietary habits, and right dietary habits can improve health and physical development as well as mental and emotional stability. The analysis did not compare other regions, and therefore any generalization of the results should be made with caution. However, the results offer important insights into stress among adolescents for their effective counseling.