• Title/Summary/Keyword: 남해도

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Spawning Density and Recruitment of Janpanese Anchovy, Engraulis japonica in the Southern Sea of Korea in 2007 (2007년 남해안 멸치의 산란밀도와 어장가입)

  • CHA, Byung Yul;Yang, Won Seok;Kim, Joo Il;Jang, Sun Ik;Chu, Eun Kyeong;Park, Ju Sam
    • Korean Journal of Ichthyology
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    • v.20 no.3
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    • pp.190-197
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    • 2008
  • Spatio-temporal distribution of eggs and larvae of Japanese anchovy Engraulis japonica in the southern sea of Korea was determined using data obtained from icthyoplanktonic surveys and oceanographic observations between Goheung Peninsula and Goeje Island from May to August 2007. Commercial anchovy catch and size composition from four local fishery cooperative associations were also analyzed in relation to the geographic distribution of eggs and larvae. The abundance of anchovy eggs increased from May to July and was lowest in August. Eggs were mainly distributed between Namhae Island and Goeje Island, where water temperatures were $15{\sim}24^{\circ}C$ and salinities were 32~35‰. In 2007 anchovy landings between Namhae Island and Goeje Island were 11,409 tons at Tongyeong association, 4,137 tons at Masan association, and 2,487 tons at Sacheon association. However, landings between Goheung and Yeosu Peninsula were only 4,411 tons (at Yeosu association). The catch by anchovy tow net was high in the area where eggs were abundantly distributed. This indicates that the distribution of egg density was directly correlated with recruitment of E. japonica. All growth stages were abundant in the study area, indicating that this area is a major spawning and growing ground of E. japonica in Korean waters.

A Study on Sea Water and Ocean Current in the Sea Adjacent to Korea Peninsula - Expansion of Coastal Waters and Its Effect on Temperature Variations in The South Sea of Korea - (한반도 근해의 해류와 해수 특성 -남해연안수 확장과 수온변화-)

  • NA Jung-Yul;HAN Sang-Kyu;CHO Kyu-Dae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.23 no.4
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    • pp.267-279
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    • 1990
  • The temporal and spatial distribution of the coastal cold waters which was formed due to winter colling in the South Sea of Korea was analyzed by IR images from satellite and in situ data from shipboard observations. The coastal waters are known to be consisted of the Yellow Sea Coastal Waters(YSCW) and the South Korean Coastal Waters(SKCW). The former is driven around the Chuja-do and drifted into the Cheju Strait by residual currents, while the latter expands toward offsea by southward wind forcing. The expansion patterns of the SKCW were observed as sinking expansion or drifting expansion such that both were strongly dependent on the surface heat flux conditions. Under the condition of positive heat flux(warmer sea surface) or when the sea surface heat is lost to the atmosphere, the surface water started sinking and eventually expanded toward the open sea causing the cooling of the water column. For the negative heat flux the surface water was just drifted horizontally and expanded seaward and in this case only the surface layer of water was cooled.

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Antioxidant activities from the Different Parts of Artemisia argyi H. using an in vitro System (In vitro 시스템에서 남해 약쑥(Artemisia argyi H.)의 부위별 항산화 활성)

  • Ha, Gi-Jeong;Jeong, Chang-Ho;Jeong, Hee-Rok;Heo, Ho-Jin;Shon, Gil-Man;Rho, Chi-Woong;Kim, Nak-Ku
    • Journal of agriculture & life science
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    • v.45 no.1
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    • pp.109-117
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    • 2011
  • The antioxidant activities of 60% ethanol extracts from different parts (leaf, stem, and root) of Artemisia argyi using an in vitro system were examined to find a possibility as natural antioxidant substances. The highest total phenolics (23.08 mg/g) was obtained by 60% ethanol extract of leaf. The scavenging activity of 60% ethanol extract from different parts of A. argyi on the DPPH and ABTS radical was raised with increasing amount of extracts, and 60% ethanol extract from leaf showed the highest radical scavenging activities. The leaf extract presented the highest reducing power and strong inhibitory effect on autooxidation of linoleic acid. In MDA formation using mouse brain homogenates, the 60% ethanol extracts of A. argyi also exhibited antioxidant activity as inhibition of MDA (71.38% at $200{\mu}g/mL$). Therefore, these results suggest that the 60% ethanol extract of A. argyi leaf possess excellent antioxidant activities and thus it has great potential as a source for natural antioxidant.

Comparison of Physicochemical Properties of Citron (Citrus junos SIEB ex TANAKA) from Three Different Areas of Namhae (남해 유자(Citrus junos SIEB ex TANAKA)의 이화학적 품질특성 비교)

  • Lee, Soo-Jung;Shin, Jung-Hye;Sung, Nak-Ju
    • Journal of agriculture & life science
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    • v.44 no.5
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    • pp.81-90
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    • 2010
  • This study was conducted to evaluate quality characteristics of citron from Namhae. The physicochemical properties, organic acid, free sugar and aroma components were analyzed and compared with citron harvested in different areas of Namhae (Seolcheon, Changseon and Idong-meyon). Total weight of citron was range of 120.51~176.56 g, total and peel weight of citron cultivated from Changseon were significantly higher than the other citron. The color of peel was not significant in cultivated area. Soluble solids was higher in citron from Changseon and Idong than Seolcheon. Total phenol and flavonoids contents in citron from Idong were higher than the others. Organic acids such as citric acid and malic acid were higher in citron from Changseon. The contents of fructose and glucose in peel and sucrose in pulp were detected higher amount. Major component of aroma profiles in citron from different region of was dl-limonene. It was amount to 57.60% in citron from Idong, 71.02% and 73.04% in citron from Seolcheon and Changseon of all aromatic components. These results were suggested that physicochemical properties and aroma components of citron have some difference by cultivation habit, period, different cultivar and producing areas.

Biological Activities of Specialized Crops in Namhae (남해군 특용작물의 생리활성)

  • Shin, Jung-Hye;Kang, Min-Jung;Yang, Seong-Mi;Sung, Nak-Ju
    • Journal of agriculture & life science
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    • v.46 no.1
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    • pp.141-151
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    • 2012
  • This study was conducted to investigate the antioxidation and biological activities of 5 kinds of specialized crops (asparagus, aloe, curcumin, backnyuncho and garlic) cultivated in Namhae. All crops were freeze dried and then extracted with 10 folds of $60^{\circ}C$ hot-water, for 8 hours. Collected twice extracted water extract were also freeze dried. Dried extract samples were diluted with deionized water for examination. The total phenolics content was the highest observed in asparagus extract to $23.79{\pm}0.33mg/g$ and total flavonoids of aloe extract was the highest content $17.10{\pm}0.05mg/g$. In all samples, DPPH, ABTs and NO radical scavenging activity were depends on the concentration of the extract tended to increase. ABTs radical scavenging activity was the highest conducted $96.10{\pm}0.06%$ effect examined at $2,000{\mu}g/mL$ in asparagus hot-water extract. NO radical scavenging activity of hot-water extract from curcumin was the highest $250{\mu}g/mL$ concentration observed in $45.04{\pm}1.39%$. In all sample, tyrosinase activity was significantly inhibited with increasing of hot-water extract concentration. As a result, ${\alpha}$-glucosidase inhibition activity was the highest in hot-water extract from backnyuncho on $31.38{\pm}0.94%$ at $250{\mu}g/mL$.

Physicochemical Characteristics of Garlic (Allium sativum L.) on Collected from the Different Regions (국내 주요 산지별 마늘의 영양성분 비교)

  • Shin, Jung-Hye;Lee, Soo-Jung;Jung, Woo-Jae;Kang, Min-Jung;Sung, Nak-Ju
    • Journal of agriculture & life science
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    • v.45 no.2
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    • pp.103-114
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    • 2011
  • Physicochemical characteristics of garlic collected from the different growing regions were analyzed to provide basic data for preparing nutritional composition of garlic. Moisture of garlics on cultivars from growing on China was $71.53{\pm}0.34%$ that significantly higher than domestic garlics ($59.37{\pm}0.63$-$66.92{\pm}0.72%$). Total phenol contents were $12.69{\pm}0.18$-$22.02{\pm}0.27mg/100g$, total flavonoids contents were $12.69{\pm}0.18$-$22.02{\pm}0.27mg/100g$. Total thiosulfinate and pyruvate contents were $96.28{\pm}2.55$-$150.81{\pm}0.09mg/100g$ and $132.87{\pm}0.45$-$161.37{\pm}1.58mg/100g$. Sucrose, glucose and fructose were detected from garlics, sucrose content average errors about 2-4 times due to cultivated area. Namhae garlic has the highest fructose contents than other province cultivated. 8 kinds of organic acids 11 kinds of mineral and 17 kinds of composition amino acids were detected in garlics. 5 kinds of free amino acids such as proline, alanine, tyrosine, phenylalanine and arginine were detected in all garlic samples.

Molecular Monitoring of Plankton Diversity in the Seonakdong River and Along the Coast of Namhae (분자 모니터링을 이용한 서낙동강과 남해 연안 플랑크톤 군집 분석)

  • Kim, Bo-Kyung;Lee, Sang-Rae;Lee, Jin-Ae;Chung, Ik-Kyo
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.15 no.1
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    • pp.25-35
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    • 2010
  • The biodiversity of eukaryotic plankton has commonly been used to evaluate the status of aquatic ecosystems. Therefore, an accurate and rapid method for species identification is needed to reveal the biodiversity of environmental water samples. To date, molecular methods have provided a great deal of information that has enabled identification of the hidden biodiversity in environmental samples. In this study, we utilized environmental polymerase chain reaction (PCR) and constructed the 18S nuclear ribosomal RNA clone library from environmental water samples in order to develop more efficient methods for species identification. For the molecular analysis, water samples were collected from the Seonakdong River (Gimhae Bridge) and the coast of Namhae,(Namhaedo). Colony PCR and restriction fragment length polymorphism of PCR (PCR-RFLP) were then adopted to isolate unique clones from the 18S rDNA clone library. Restriction fragment length polymorphism pattern analysis of the Gimhae Bridge sample revealed 44 unique clones from a total of 60 randomly selected clones, while analysis of the Namhae sample revealed 27 unique clones from 150 clones selected at random. A BLAST search and subsequent phylogenetic analysis conducted using the sequences of these clones revealed hidden biodiversity containing a wide range of taxonomic groups (Heterokontophyta (7), Ciliophora (23), Dinophyta (1), Chytridiomycota (1), Rotifera (1) and Arthropoda (11) in the Gimhae Bridge samples Ciliophora (4), Dinophyta (3), Cryptophyta (1), Arthropoda (19) in the Namhae samples). Therefore, the molecular monitoring method developed here can provide additional information regarding the biodiversity and community structure of eukaryotic plankton in environmental samples and helps construct a useful database of biodiversity for aquatic ecosystems.

제11차 벤처 CEO Summer Forum

  • Korea Venture Business Association
    • Venture DIGEST
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    • s.109
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    • pp.58-59
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    • 2007
  • 벤처기업협회(회장 백종진)는 지난 7월 12일(목)부터 14(토)까지 경상남도 남해군 소재 힐튼 남해리조트에서 '제11차 벤처 CEO섬머포럼'을 개최했다. 올 섬머포럼은 기업의 미래전략을 위한 가이드라인 제시뿐만 아니라 <벤처기업특별법>연장에 따른 주요 이슈에 대한 포럼 및 토론을 통한 '젠처2기 로드맵'공유의 장이 마련되었다. 더불어 참가한 70여명의 벤처 CEO들이 활발한 비즈니스 네트워킹을 통해 산업별 협력강화를 다짐하기도 했다.

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A Systematic Study on the Marine Sponges from the South Sea and the Yellow Sea of Korea (한국 남해 및 서해 연안 해산 해면류의 계통분류학적 연구)

  • 심정자
    • Animal Systematics, Evolution and Diversity
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    • v.1 no.1_2
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    • pp.21-30
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    • 1985
  • 본인은 1984년 6월부터1985년 5월까지 서해연안(작약도, 대천, 안면도, 안흥)과 남해연안의 삼천포를 중심으로 한 부근섬(신수도, 늑도, 비진도, 충무) 및 거제도, 제주도 등지에서 채집된 재료 90여점과 그간 미해결로 보류되어있던 기존 표본들을 동정분류한 결과 26 종의 기록종과 3 종의 한국 미기록종(Spongia officienalis , S. zimmocca, Tedania Tublifera)이 밝혀졌다. 기록종 가운데 Esperiopsis uncigera 와 Hymeniacidon sinapium은 재검토되었다.

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The Spider Fauna of Namhai Island, Korea (남해도 거미상)

  • Kim, Joo-Pil
    • The Korean Journal of Soil Zoology
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    • v.5 no.2
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    • pp.113-117
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    • 2000
  • The spider fauna of Namhai Island was investigated from 21 to 25 Aug 1998. As a result,81 species of 43 genera under 15 families were collected. Identified spiders are composed of 30.8% Palaearctic, 28.4% Palaearctic and Oriental, 6.1% Holarctic, 2.4% Oriental, and 3.7% Cosmopolitan species. Araneid, salticid and theridiid spiders appeared to be dominant among the spiders. Common species with Japan and China were 56(69.1%) AND 55 (67.1%) species, respectively.

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