• Title/Summary/Keyword: Jinhae

Search Result 386, Processing Time 0.026 seconds

Growth and RAPD Variation of Enteromorpha prolifera (Oeder) J. Agardh, (Ulvaceae, Chlorophyta) from Korea

  • Yoon Jang-Taek;Chung Gyu-Hwa
    • Fisheries and Aquatic Sciences
    • /
    • v.5 no.3
    • /
    • pp.156-164
    • /
    • 2002
  • Enteromorpha prolifera of the isomorphic diploid sporophyte and the haploid gametophyte generations inhabit rocks, tidal flats and tidal pools in the middle parts of intertidal zones. In this experiment, their thalli were observed by bare eyes from October and experienced $74\pm16.5cm$ maximum growth the following March and April. The rate of occurrence of the thalli per month was highest in March, while their biomass peaked at $1,464\pm41.5 g/m^2$ in Jangheung in April. Genetic similarity was investigated samples of E. prolifera collected from Muan, Wando, Jangheung, Yosu and Jinhae, at the south coast of Korea. Random amplified polymorphic DNA (RAPD) markers were used. For the RAPD analysis, 3 ng of the DNA extracted from the thalli using he phenol/chloroform method was amplified by PCR with a 25 {\mu}L$ reaction solution, arbitrary primers and 36 cycles. Among the 60 primers used, 31 yielded products, most of which showed diverse electrophoresis patterns. Similarities among the groups compared ranged from 0.37 to 0.58. We conclude that the use of RAPD analysis is appropriate to characterize the genetic variability of this commercial species along its geographical distribution.

Strategies to Attract Transshipment Container Cargos in Jinhae New Port (진해신항의 환적화물 유치방안에 관한 연구)

  • Gang, Yong-Su;Jeong, Hong-Ja
    • Proceedings of the Korea Port Economic Association Conference
    • /
    • 2007.07a
    • /
    • pp.423-439
    • /
    • 2007
  • 중국은 지난 1978년 개혁개방정책을 실시한 이후 연평균 9%를 상회하는 경제성장률을 기록하였고 이는 중국발 수출입화물의 급격한 증가로 이어졌다. 그러나 폭증하는 수출입화물에도 불구하고 중국은 항만인프라의 부족으로 인근 부산항을 이용해 왔고 이것이 세계적인 부산항으로 부상하는데 결정적 기여를 했다는 것은 사설이다. 그러나 부산항이 처리한 환적화물의 경우 2002년에 32.5%였던 환적화물 증가세가 2005년에는 8.1%로 낮아졌으며, 2006년에도 전년대비 0.6%로 기록하면서 성장세가 크게 둔화되고 있다. 이 같은 상황에 처하게 되자 우리나라는 2006년 1월 19일 진해신항 개항과 더불어 기존의 '동북아 중심 국가 추진전략'과 병행하여 '국제물류 네트워크 강화를 통한 고부가가치 물류 허브화 전략'을 수립하여 시행하고 있다. 이 전략은 앉아서 환적화물을 기다리던 수동적인정책에서 벗어나 물류체계의 혁신을 통한 물류 네트워크 확대/ 적극적인 대외 협력 등을 통해 우리 항만이 기업과 환적화물의 안정적인 유치기반을 조성하는 한편, 물류와 금융, 건설, IT 등 관련 산업과의 연계를 통해 우리 물류기업이 글로벌 기업으로 성장하고 세계로 진출할 수 있는 진해신항의 환적화물 유치방안을 마련하여 우리나라 경제성장의 동력이자 미래 경제 전략의 중요한 밑거름이 될 수 있다.

  • PDF

Heavy metals in mussels in the Korea Coastal Waters (韓國海岸 眞珠담치의 重金屬含量)

  • Lee, Soo Hyung;Lee Kwang Woo
    • 한국해양학회지
    • /
    • v.19 no.2
    • /
    • pp.111-117
    • /
    • 1984
  • Heavy metal contents in soft tissues of mussels, Mytilus edulis, of Imweon, Banweol, Bay and Yeosu in Korea were determined during 1981∼82. The heavy metal measured were Cd, Cr, Cu, Pb, Zn, Mn and Fe. Depuration of mussel samples in clean seawater was needed adequate in the lowest levels of the complete excretion of gut contents. The 48hr depuration was adequate in the present study. Of the four study areas, Imweon showed the highest Pb, Mn and Fe contents. In Jinhae Bay, St. 9 showed the greatest Pb, Zn, Mn and Fe contents, whereas the highest levels of Cd, Cr and Cu were recorded at Sts. 7, 4 and 2, respectively. The concentrations of metals, except Cu, in mussels decreased with the growth of shell size.

  • PDF

New Record of Ariosoma meeki (Anguilliformes: Congridae) from Korea (한국산 붕장어과 어류 1 미기록종, Ariosoma meeki)

  • Yeo, Sooeun;Kim, Jin-Koo
    • Korean Journal of Ichthyology
    • /
    • v.28 no.2
    • /
    • pp.121-124
    • /
    • 2016
  • A single specimen of Ariosoma meeki, belonging to the family Congridae, was collected for the first time from Jinhae-gu, Changwon-si, Gyeongsangnam-do, Korea, on June 10, 2015. Ariosoma meeki is characterized by an absence of scales on its whole body, dorsal and anal fin connected to the caudal fin, blackish margins of the dorsal and anal fin, posterior nostrils not covered with a dermal flap, 60 preanal lateral-line pores, 15 pectoral fin rays, no cephalic sensory pore between the interorbital region and dorsal fin origin, and two dark brown dots behind the eyes. We described it as the new Korean record, and proposed the Korean name "nun-te-bung-jang-eo" for this species A. meeki.

AMOEBA INFECTION IN OYSTER (CRASSOSTREA GIGAS) (굴에 기생하는 Amoeba에 대하여)

  • CHUN Seh-Kyu
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.12 no.4
    • /
    • pp.281-285
    • /
    • 1979
  • A species of enigmatic amoeba was found front the oysters culcured in Jinhae Bay and the Goje Bay in September-October 1978 and October 1979. Occurrence and the morphological characteristics of the amoeba were studied. Based on their peculiar morphological characters the enigmatic body was a species of parasitic amoeba. The amoebas were morphologically very similar to the amoeboid parasite described by Sawyer(1977). Occurrence of the oysters infected with the amoeboid ranged from zero to $13.3\%$. The infection rate did not show any relations to the depth of water where the oysters were suspended. The longest diameter of the amoeba is $24\;\mu$. The thin outer membrane is lightly stained with eosin and PAS positively. Initially one amoeboid was found in an ovum, and later it propagated to 3 to 4 individuals.

  • PDF

Environmental Studies Of The Jinhae Bay 1. Annual Cycle Of Phytoplankton Population, 1976-1978

  • Yoo, Kwang-Il;Lee, Jin Hwan
    • 한국해양학회지
    • /
    • v.14 no.1
    • /
    • pp.26-31
    • /
    • 1979
  • 1976년 7월부터 1978년 5월까지 2년동안 매 기수월에 진해만의 6개 정점에서 식물성플랑크톤군집의 년변화를 조사하였다. 조사기간 중 수온은 2.28$^{\circ}C$~25.48$^{\circ}C$, 염분도는 27.42 ~33.90 , pH는 8.0~8.5, 투명도는 0.5m~0.8m, 용존산소량은 2.23ml/l~12.32ml/l의 분포를 보였다. 식물성플랑크톤의 출현종수는 30속, 79종, 2품종, 3변종으로 나타났다. 이들의 우점종은 Skeletonema costatum, Thalassiosira hyalina, Leptocylindrus danicus, Chaetoceros curvisetus, Chaetoceros costatus, Nitzschia pungens, Nitzschia seriata였으며, Chaetoceros affinis, Chaetoceros curvisetus, Coscinodiscus centralis var. pacifica, Ditylum brightwellii, Navicula distans, Nitzschia pungens, Pleurosigma elongatum, Thalassiorira hyalina, Thalassiothrix frauenfeldii등은 출현빈도에 있어서 이 지역의 대표종이었다. 출현종의 생태적 구분은 연안종이 67.86%로서 내만의 특성을 나타내고 있다. 현존량의 계절적인 변화는 808~12,461,000 cell/l까지 심한 변화폭을 보이고 있으며, 1976년 7월, 11월, 1977년 5월, 9월, 1978년 5월에 $10^{6}$ cells/l대의 대발생이 있었다. 대발생때의 다양성지수는 1976년 7월에 0.5625~1.0345로 낮은 값을 보여 Skeletonema costatum에 의한 대발생이었으며, 11월의 3.0702~4.1019의 높은 값을 보인때는 18~33종의 다양한 출현종에 의한 것이었다.

  • PDF

Petrogenesis of the so-called Masanite in the Kyeongsang Sedimentary Basin (경상퇴적분지내에 분포하는 소위 마산암에 대한 암석성인연구)

  • Kim, Kyu Han;Lee, Hwa Jung
    • Economic and Environmental Geology
    • /
    • v.29 no.4
    • /
    • pp.529-541
    • /
    • 1996
  • The granitic rocks, so called Masanite, characterized by the micrographic, mylmekitic and perthitic textures, and zonal structure of the plagioclase in the Masan, Changwon and Jinhae areas belong to normal granite and granodiorite based on the modal analysis. These petrographic features strongly suggest the shallow emplacement of the plutons which are defined a typical calc-alkaline suite and I-type granitoids. The pressures of emplacement of the granitic plutons using the amphibole geobarometer were calculated to be 1.2kbar in the Masan area and 1.4kbar in the Changwon area. Their amphibole-plagioclase equilibrium temperatures were obtained to be $638^{\circ}C$ for the former ones and $724^{\circ}C$ for the latter. Homogenization temperatures and salinities for the type HI and IV fluid inclusions in quartz range from 298 to $541^{\circ}C$ (av. $425^{\circ}C$), and 10.5 to 34.6 wt.% NaCl (av. 28.2 wt.% NaCl), respectively. Gas compositions of the granitic rocks with fairly high $CO_2$ concentration relative to CH, correspond to the magnetite series granite of the mantle source. The terminology of the Masanite is not recommended usage. Because it is hard to discriminate in terms of petrological and petrogenetical characteristics between the Masanite and the Bulguksa granites in the Kyeongsang basin.

  • PDF

Effects of Development Environmental Club Programs for Creative Experiential Learning Activity (창의적 체험활동을 위한 환경동아리 프로그램 개발 및 적용 효과)

  • Lee, Sang-Gyun
    • Journal of the Korean Society of Earth Science Education
    • /
    • v.5 no.1
    • /
    • pp.114-123
    • /
    • 2012
  • This study investigates the effect of environmental club activities of the creative experiential learning activities on the improvement of students' Environmental Literacy and Pro-environmental Behavior. For that purpose, This study divided 24 students at Jinhae U Elementary School into test groups of 12 students and Control groups of 12 students. Test groups participated in the 'GomGomi' environmental Club for sixteen times from March 2011 to December 2011. Conclusions of this study include; First, we found that the environmental club activities is effective to improve the students' environmental Literacy overall. Specifically, the Environmental Club Activities was effective in the sub-catagories of environmental Literacy such as 'rights of nature' and 'eco-crisis'. However, there was no significant change in the sub-category of 'human exemptionalism' Second, we found that the environmental club activities is effective to improve students' pro-environmental behavior overall. Specifically, the environmental club activities was effective in the sub-domains of Pro-environmental Behavior such as 'cognitive domain' and 'affective domain'. However, there was no significant change in the sub-domains of 'behavioral domain'. Summary, the environmental club activities was shown to be effective for improving their environmental literacy and pro-environmental behavior; This study implies that the environmental club activities of the creative experiential learning activities would be a effective tool to help students to improve their environmental literacy and pro-environmental behavior.

On the Gymnodinium Red Tide in Jinhae Bay (진해만의 Gymnodinium 적조에 관하여)

  • CHO Chang-Hwan
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.14 no.4
    • /
    • pp.227-232
    • /
    • 1981
  • 1981년 하계중 진해만에서는 3차에 걸친 대규모의 적조가 있었다. 이들 적조는 그 규모나 원인종, 농도, 머문기간에 있어 남해안궤서 그 유예가 없었던 악성적조었다. 그로 인한 수산물 피해액만도 약 17억3천4백만으로 추정되었다. 1차 적조는 7월 18, 19일부터 시작되어 7월말까지 계속되었으며, 2차는 8월중순에 그리고 3차는 9월초순에 있었다. 주 원인종은 와편모조의 일종인 Gymnodinium sp.로서 외부형태로 보아 1963년 일본 대촌만에서 있었던 적조의 원인종인 Gymnodinium 65년도형과 유사하였으나 확인할 수는 없었다. 적조시의 수색은 암갈색이었고 세포양은 주로 표면에서 수심 악 2m층까지 농밀하여 심한 경우 투명도는 0.1 m이었다. 최고세포수는 약 20만cells/ml 이었고 이때 클로로필-a양은 약 $1,000mg/m^3$ 이었다. 용존산소양은 $2\sim3ml/1$인 경우가 많았고 최하 1ml/l이 발견되었다. 1차 적조 후기핀 양식굴 및 흥합의 폐사가 나타났고 2차 적조가 사라진8월 16, 17일에는 게. 고동. 새우유 등과 양태류, 볼락, 까나리 등의 사체가 조류에 밀려 해안에서 발견되었다. 금번 적조의 특징은 원인종이 악성인 Gymnodinium sp. 이고 내년에도 재발할 수 있는 가능성이 있다는 점이다. 발생원인은 일본 대촌만 적조의 경우처럼 다우후 고온의 지속과 저이중 다양의 유화물이 주요인자라 추측된다.

  • PDF

Arthropod Tissue Culture and Virus Research (곤충조직배양과 바이러스 연구)

  • 이연대
    • Korean Journal of Microbiology
    • /
    • v.11 no.3
    • /
    • pp.134-151
    • /
    • 1973
  • The physico-chemical and biological factors of coastal sea water were measured bimonthly from 1976 to 1979 for elucidating the relationship between microbial distribution and environmental factors at Masan and Jinhae bay. The experimental results are summarized as followings : 1) The polulation size of bactriz in sea water were increasing as the water temperature increased, and that was higher at station 2 and 3 than at station 1. The number of fungi showed the highest value on July on bottom. The population size of yeast showed no seasonal variation and also showed a relation with the geographic distance. 2) The correlationship between microbial distribution and environmental factors showed little coefficiency in surface water. And the other hand, at bottom water, between general bacteria and water temperature and dissolved oxygen, and between yeast and salinity, there were relatively high coefficiecy.

  • PDF