• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.2
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• pp.162-169
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• 2021

Global warming has affected the distribution of organisms for decades and has displayed rapid ascent recently. Research into the effects on tropical organisms are vital. Padina boryana is a resourceful marine microalgae in the Maldives Sea in the Laccadive region. A 70% ethanol extraction (PBE) of this seaweed was used to investigate its antioxidant potential. Both in vitro and in vivo models were implemented. PBE exhibited protective potential against H₂O₂ induced apoptosis. ROS levels were suppressed due to PBE. PBE expressed a cytoprotective nature. In vivo experiments involving the zebra fish model conformed its validity. The antioxidant efficacy of PBE was dose dependent. Study outcomes suggest PBE has potential as a novel and valuable marine resource to aid the functional food and cosmeceutical industries.

• Korean Journal of Microbiology
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• v.54 no.4
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• pp.463-464
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• 2018

Tamlana sp. UJ94 isolated from seawater can degrade alginate. To identify the genomic basis of this activity, the genome was sequenced. The genome was composed of 4,116,543 bp, 3,609 coding sequences, and 35.2 mol% G + C content. A BLASTp search predicted the presence of 9 alginate lyases as well as 6 agarases, 5 amylases, 4 carrageenases, 1 cellulase, 4 pectate lyases, and 7 xylanases, indicating its ability to degrade diverse polysaccharides. The genome of strain UJ94 is a source of polysaccharide-degrading enzymes for bioconversion processes.

• Korean Journal of Microbiology
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• v.54 no.4
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• pp.460-462
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• 2018

Flagellimonas eckloniae DOKDO $007^T$, isolated from the rhizosphere of the marine algae Ecklonia kurome collected from Dokdo Island, South Korea, is a marine Flavobacteria belonging to the family Flavobacteriaceae. The genome consists of 4,132,279 bp, 3,527 coding sequences with 37.85% G + C contents and two contigs in one scaffold chromosome. This strain contains a gene encoding proteorhodopsin, as well as other retinal biosynthesis genes, allowing it to utilize sunlight as an energy source. The strain contained only few segment of flagellar constructing gene cluster and this is not consistent with genus name Flagellimonas, therefore, revision of the genus name is required.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.81-81
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• 2017

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.545-547
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• 2013

해양플랜트 서비스 산업은 고상장 산업임에도 불구하고 국내기업의 진출은 거의 전무한 상태이다. 해양플랜트 수요는 고유가와 심해유전 개발의 확대로 산업 시장성은 충분하고 석유 가스 개발이외에도 방대한 해양자원 개발에 필수적이다. 해양플랜트 서비스 산업은 진입장벽이 매우 높은 산업이며 진출을 위해선 인력양성이 필수적이다. 또한 서비스 산업은 고수익 업종으로 선원 및 조선산업 유휴인력과 조선해야공학 전공자에게 고급 일자리 기회를 제공할 수 있다. 이에 본 원고에서는 우리나라 해양플랜트 서비스산업 현황과 전문인력 양성방안에 대해 제시하고자 한다.

• Journal of Marine Life Science
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• v.6 no.2
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• pp.97-105
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• 2021

Tegillarca granosa, is one of the most important fishery resources throughout Asia. However, due to industrialization factories, marine environmental pollution, and global warming, the marine fishery production has drop sharply. In order to understand the genetic factors of the blood clam, which is a major fishery resource on the southern coast of Korea, the whole genome of blood clam was studied. The assembled genome of T. granosa was 915.4 Mb, and 19 chromosomes were identified. 25,134 genes were identified, and 22,745 genes were functionally annotated. As a result of performing gene gain and loss analysis between the blood clam genome and eight other types of shellfish, it was confirmed that 725 gene groups were expanded, and 479 gene groups were contracted. The homeobox gene cluster of blood clam showed a well-preserved genetic structure within lophotrochozoan ancestor. T. granosa genome showed high similarity between three hemoglobin genes with Scarpharca broughtonii. The blood clam genome will provide information for the genetic and physiological characteristics of blood clam adaptation, evolution, and the development of aquaculture industry.

• Korean Journal of Ichthyology
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• v.21 no.sup1
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• pp.52-62
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• 2009

Environmental differences of each sea around the Korean Peninsula in terms of factors including topography and complexity of sea current may influence species and genetic diversity of marine fishes. Fish are naturally abundant in the frontal area where various currents or water masses meet. However, this food resource is prone to human overexploitation, threatening the marine ecosystem. New fisheries resources management strategies are needed. Such strategies require information about population structure obtained through morphological and genetic methods.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.271-273
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• 2012

브라질은 최근 심해유전(Pre-Salt)개발 등 해양자원개발 등을 통해 신흥자원부국으로 각광받고 있다. 올 해 6월 국영석유기업인 페트로브라스가 '2012-2016 Business Plan'를 통해 향후 5년 간 E&P, 정제 및 운송 분야에 2,073억 달러를 투자한다고 밝히면서 향후 해양플랜트 및 OSV 수요가 커질 것으로 예상된다. 브라질이 우리나라 조선, 해운, 전문 인력 분야에서 협력대상으로 한국을 염두에 두고 있어 특히 OSV 건조 및 운영과 관련해 우리나라 기업의 진출 전략 수립이 필요하다. 이 글은 브라질 OSV 시장 현황 및 정부 정책, 그리고 우리나라 진출 전략을 크게 현지네트워크 강화를 통한 페트로브라스 공략, 로컬 콘텐츠 대응 전략 수립, OSV 운영에 특화된 전문인력 양성, 선사 조선소 기자재 업체 협력체계 구축, 정부 지원 확대 등으로 제시한다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.281-282
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• 2003

북태평양 연안을 회유하는 연어는 분포범위가 넓은 어종으로 우리나라의 동해안 일대 연안으로 회귀하고 있다. 연어 자원은 분쟁의 가능성이 많은 종으로 연어 자원 분쟁에 대처하기 위하여 자원의 관리 단위인 계군 분석이 행해져야 한다. 본 연구에서는 보다 정확하면서도 간단한 계군 분석 방법을 개발하기 위하여 생물 집단간의 유전적 차이 규명에 효과적으로 이용되고 있는 미토콘드리아를 이용하였다(McKay et al., 1996; Verspoor et al., 1999). (중략)

• Journal of the Korea Convergence Society
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• v.11 no.4
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• pp.11-16
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• 2020

As a plan for oil spill accidents, research to collect and analyze optimal equipment assignments is essential. However, studies that have diversified and analyzed the optimal equipment assignments for responding to oil spill accidents have not been preceded. In response to the need for analyzing optimal equipment assignments study, we devised a genetic algorithm for optimal equipment assignments. The designed genetic algorithm yielded 10,000 optimal equipment assignments. We clustered using the k-means algorithm. As a result, the two clusters of Yeosu, Daesan, and Ulsan, which are expected to be the largest spills, were clearly identified. We also projected 16-dimensional data in two dimensions via Sammon's mapping. The projected data were analyzed for distribution. We confirmed that results of the simulation were better than those of optimal equipment assignments included in the cluster.In the future, it will be possible to implement an approximate model with excellent performance based on this study.