• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.91-93
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• 2005

생물다양성은 육상 생태계, 해양과 기타 수생 생태계와 이들의 복합 생태계를 포함하는 모든 원천에서 발생한 생물체의 다양성을 알하며, 종내$\cdot$종간 및 생태계의 다양성을 포함한다. 지구상에 존재하는 생물이 매우 다양하듯이 생물다양성을 표현하는 데이터 또한 매우 다양하게 사용되고 있다. 본 논문에서는 먼저 생물다양성 데이터의 점보공유 및 교환을 위해 생물다양성 관련 국제기구에서 제안된 데이터 표준 및 데이터 교환 프로토콜을 알아보고, 이러한 데이터 표준과 프로토콜을 기반으로 국내 생물다양성 데이터 공유 및 교환을 위한 생물다양성 메타데이터 스키마를 크게 생물종 정보와 종정보에 관한 참조(reference) 정보로 나누어 설계하여 제시하고자 한다.

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.10
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• pp.26-49
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• 2002

생물다양성은 육상 생태계, 해양과 기타 수생 생태계와 이들의 복합 생태계를 포함하는 모든 원천에서 발생한 생물체의 다양성을 말하며, 종내.종간 및 생태계의 다양성을 포함한다. 즉, 생물다양성이란 생물종(Species)의 다양성, 생물이 서식하는 생태계(Ecosystem)의 다양성, 생물이 지닌 유전자(Gene)의 다양성을 총체적으로 지칭하는 말이다. 종다양성(Species diversity)은 한 지역내의 종의 다양성 정도를 말하는 것으로서 분류학적 다양성을 지칭하며, 생태계 다양성(Ecosystem diversity)은 한 생태계에 속하는 모든 생물과 무생물의 상호작용에 관한 다양성을 말한다. 또한 유전적 다양성(Genetic diversity)은 종내의 유전자 변이를 말하는 것으로 같은 종내의 여러 집단들을 의미하거나 한 집단내 개체들 사이의 유전적 변이를 의미한다.

• Applied Biological Chemistry
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• v.35 no.6
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• pp.470-474
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• 1992

For the further development of thelepin analog as antibiotic agents, we undertook the synthesis of spirobenzopyranone derivative ${\underline{5}}$ as thelepin analog by oxidative phenol coupling. The spirobenzopyranone analog ${\underline{5}}$ showed high activity against Bacillus subtilis (IFO 3108) in $5\;{\mu}g/disc$.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.17 no.1
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• pp.9-15
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• 2012

Worldwide development of harmful algal blooms causes serious problem for public health and fisheries industries. To evaluate the algicidal impact on the harmful algae bloom species in aquatic ecosystems of coast, a new algicide thiazolidinedione derivative (TD49) were tentatively examined in the growth stages (i.e., lag, logarithmic and stationary phase) of rapidophyceae $Heterosigma$ $akashiwo$, $Chattonella$ $marina$ and $Chattonella$ sp..Three strains could easily destroy in the lag phase due to relatively weak cell walls than those of the logarithmic and stationary phase. It is thought that inoculation of TD49 substances into initial or developmental natural blooms with a threshold concentration ($2{\mu}M$) can maximize the algicidal activity. Also, bio-chemical assays revealed that the algicidal substances from all culture strains were likely to be extracellular substances because those cells have easily destroyed in cell walls. On the other hand, natural zooplankton communities were influenced within the exposure experiments of $2{\mu}M$, which is showed the maximum algcidal activity of tested organisms. These results indicate that although the TD49 substance is potential agents for the control of $H.$ $akashiwo$, $C.$ $marina$ and $Chattonella$ sp. in the enclosed eutrophic bay and coastal water, more detailed research of acute toxicity effect on high trophic organism in marine ecosystems need to be conducted.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.264-265
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• 2003

인공어초 주변에 집어된 어업생물의 종류나 생태습성을 파악하기 위하여 전통적으로 잠수와 원격무인잠수정(ROV)에 의해 방법이 이용되어 왔다. 그러나 이 기술은 해양환경이나 어류의 개체구별 어려움 때문에 제한을 받고 있다(Fabi and Sala,2001). 이러한 결점을 보완하기 위하여 최근 어군탐지기를 고정하여 어초에 군집하는 어류의 개체 조사에 사용하고 있다(Fabi and Sala, 2001; Thornee et al., 1989). (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.475-476
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• 2001

어류의 피부와 아가미는 물이라는 외부환경과 직접 접촉하고 있기 때문에, 삼투압의 불균형과 환경유해성분 등에 직면하게 되어 상피층의 이상증식을 유발한다(Hawkes, 1974). 청어류, Clupea harengus 자어시기에 철의 영향으로 인해 피부계 미토콘드리아가 위축되며, 활면소포체가 감소한다고 보고되었다 (Somasundaran, 1985) 해양생물에 있어서 유기오염원의 생체내 축적은 수용액의 상태로 아가미와 체표의 흡수 및 먹이의 섭취를 통해서 일어나며, 이 가운데 아가미를 통해서 흡수되는 경우가 높다. (중략)

• Development and Reproduction
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• v.6 no.2
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• pp.71-76
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• 2002

Present study was aimed to summary the recent reports of chromosomal technology such like a polyploidv, sex differentiation, gynogenesis, transgenic fish and gene manipulation. Triploid cells for rainbow trout and channel catfish were induced through thermal shocks of varying temperature levels and produced as a industrial use. A monosex fish with homogametic females of 15 species of high valued fish were produced by exposing to irradiation. It seemed that different irradiation was suitable to inactivate the sperm and block the formation in producing the gynogenetic diploids. Since 1985, transgenic fish have been successfully produced by microinjecting or electroporating desired foreign DNA into unfertilized or newly fertilized eggs using about 40 fish species. More recently, transgenic fish have also been produced by infecting newly fertilized eggs with pantropic, defective retroviral vectors carrying desired foreign DNA. These transgenic fish can serve as excellent experimental models for basic scientific investigations as well as in marine biotechnological applications.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.8 no.1
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• pp.29-34
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• 2003

Recent reports on the phagotrophic feeding of M. rubrum are based on cultivation experiments with novel isolates of this ciliate species from Gomso Bay, Korea. Photo-adapted cryptophyte(CR-MAL01) cultures at high light of 100 $\mu$mol photons m$^{-2}$ s$^{-1}$ (HL) and low light of 10 $\mu$mol photons m$^{-2}$ s$^{-1}$ (LL) were fed to M. rubrum (MR-MAL01) cultures under HL and LL conditions, respectively. Absorbance spectrum by LL M. rubrum showed the same peak at wavelengths around 542nm as that by LL cryptophyte prey, which was not showed in HL M. rubrum. This result supports the implication that light utilization and absorption pattern of M. rubrum population must depend on the status of photo-adaptation of the co-existing population of prey cryptophyte. Consequences of the present research results were discussed in relation to the function of the prey cryptophyte and phagotrophic M. rubrum in marine microbial ecosystem.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.12 no.4
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• pp.359-369
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• 2007

Amoebophrya is an obligate endoparasitic eukaryotic dinoflagellate infecting host species and eventually killing them within a short period. Because of its host specificity and significant impacts on population dynamics of host species, it has long been proposed to be a potential biological agent for controlling harmful algal bloom (HAB). For several decades, the difficulties of culturing host - parasite systems have been a great obstacle to further research on the biology of Amoebophrya but recent success of several culture systems reactivates this research field. In this study, as a preliminary work for understanding the impacts of Amoebophrya on the population dynamics of host species, semimonthly occurrence of infected host dinoflagellates by Amoebophrya spp. had been observed in Jinhae Bay for two years and with a host - parasite system cultivated, host specificity of Amoebophrya spp. on several dinoflagellates was tested. Amoebophrya spp. were observed in the cellular organelle and cytoplasm of several species including Akashiwo sanguinea, Ceratium fusus, Dinophysis acuminata, Heterocapsa triquetra, Oblea sp., Prorocentrum minimum, P. triestinum, Scrippsiella spinifera, and S. trochoidea. Among them two host - parasite systems for an athecate dinoflagellate, A. sanguinea, and for a thecate dinoflagellate, H. triquetra, had been able to be successfully established as laboratary cultures. Cross-infection tests for 6 species of dinoflagellates in which Amoebophrya was observed or had been reported to exist confirmed high preference for host species of the parasite. Through the continuous research on Amoebophrya occurring in Korean coastal waters, we need to maintain various host - parasite culture systems, which will be very helpful for understanding its ecological role in marine food webs and for applying the species to biologically control harmful algal blooms.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.255-256
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• 2000

효모는 크기가 매우 작고 영양성분이 풍부하기 때문에 양식 시 먹이생물로 이용되는 동물성 플랑크톤의 먹이나 배합사료의 첨가제로 많이 사용되고 있다. 효모의 종류는 수 없이 많은데 이러한 효모들 중에서 Kluyeromyces fragilis 와 Candida utilis 는 대량배양이 가능하며 병원성 균주가 아닌 먹이생물로서 개발가능성이 높은 것으로 보고되어 있다 (Epifanio, 1979). 또한 Lee et al (1999)은 영양성분을 분석하여 사료첨가제로 이용가능성을 타진한 바 있다. 본 연구는 양식 생산량이 증가하고 있는 조피볼락을 대상으로 경제적인 측면을 고려하여 어분 함량을 달리 첨가한 배합사료에 K. fragilis, C. utilis 및 맥주효모를 각각 3%씩 첨가한 사료를 제조, 공급하여 이들 효모첨가가 조피볼락의 성장과 체성분에 미치는 영향을 조사하였다. (중략)