• 제목/요약/키워드: tongyeong

검색결과 365건 처리시간 0.025초

수온환경변화에 따른 생물분포와 어업피해결정을 위한 임계환경변화량이론의 재조명 (Biological Distribution by Water Temperature and Refocus on the Theory of Critical Environmental Variation Quantum)

  • 강용주;김기수
    • 수산경영론집
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    • 제45권1호
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    • pp.1-16
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    • 2014
  • The study attempts to show that the theory of critical environmental variation quantum(CEVQ) has a sound logical basis and empirical support. It is well known that the theory of critical environmental variation quantum is derived from the theory of biological probability distibution function and the central limit theorem(CLT) in statistics. The study uses the case study of fisheries damages compensation caused br the public marine construction undertaken in the area do Anjeong Bay in the city of Tongyeong for empirical test of theory of CEVQ. The results shows that the CEVQ theory perfoms a good job in measuring quantatively fjsheries damages caused by outflow of cold water due to the operation of LNG company since 2002. Therefore the study proves that the CEVQ theory is a good theory having internal consistency and empirical applicability.

유전독성물질로 오염된 해양생물의 생물검정법으로서 comet assay 이용 (Use of comet assay as a bioassay in marine organisms exposed to genotoxicants)

  • 김기범;안준건;김재원
    • 한국환경과학회지
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    • 제14권11호
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    • pp.1071-1079
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    • 2005
  • Using single cell gel electrophoresis, DNA single strand breaks were determined in various marine organisms. DNA damage on fish blood cells was detected to know whether there was a difference between Incheon, Pohang, Masan, and Tongyeong as a control site. Tongyeong showed the lowest DNA damage among the study areas. Mussels, transplanted to Masan Bay for one month, revealed high DNA damage at sites with high economical activity. In two weeks exposure of polychaete to Incheon sediments, higher DNA damage was detected in the sediment adjacent to Incheon harbor than open sea. These results suggested that the marine organism from the polluted area revealed a relatively high DNA damage. In addition, these areas might be contaminated with genotoxic compounds and comet assay was useful as a bioassay to detect DNA damage in marine organisms.

가을철 시판 시금치의 이화학적 특성 (Physicochemical Characteristics of Commercial Spinach Produced in Autumn)

  • 이미희;한재숙;소궤신행;남출륭구
    • 동아시아식생활학회지
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    • 제15권3호
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    • pp.306-314
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    • 2005
  • This study was carried out to examine physicochemical characteristics of three kinds of commercial spinach produced from three areas(Gyeongbuk Yeongdeok Younghea, Gyeongnam Tongyeong Yongnam, Gyeongnam Tongyeong Gwangdo) in autumn of 2004. The length, weight, moisture, minerals, oxalic acid, chlorophyll, vitamin C, and Hunter's color values of spinach leaves and stem; were determined. Mg, Ca, Na, K, chlorophyll, and vitamin C contents of leaves were higher than those of stems. On the other hand, stem; showed higher contents in Fe, P and oxalic acid Moisture, Mg, Na, Fe, chlorophyll, and vitamin C contents in the spinach leaves from Gwangdo were higher than those from Yongnam and Younghea, but oxalic acid lower a little.

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Underwater Observations of Spawning of Hexagrammos agrammus off the Tongyeong Coast, Korea

  • Lee, Yong-Deuk;Lee, Seung-Hwan;Gwak, Woo-Seok
    • Fisheries and Aquatic Sciences
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    • 제18권4호
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    • pp.395-399
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    • 2015
  • We observed seasonality and other characteristics of spawning in the greenling Hexagrammos agrammus off the coast of Tongyeong. Eleven spawning grounds were identified between November, 2013 and January, 2014. The fertilized eggs of H. agrammus were assigned to developmental stages I, II, III, and IV. Based on this classification, we showed that the spawning season extended from the end of October to mid-January. H. agrammus used diverse seaweed species attached to shallow bedrock as spawning substrata that provided good camouflage. Two to seven egg masses were fertilized around the holdfasts of individual seaweeds at depths of 1.2-4.0 m. We identified species-specific reproductive traits of H. agrammus during the spawning season, including strong parental care of the fertilized eggs.

경남 통영의 소규모 잘피밭 어류군집에 관한 연구 (Species Composition of Fish Assemblage in a Small Scale Eelgrass Bed of Tongyeong, Korea)

  • 김준섭;곽우석
    • 한국어류학회지
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    • 제24권3호
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    • pp.191-200
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    • 2012
  • 경남 통영 풍화 잘피밭에서 2010년 11월부터 2011년 10월까지 예인망(surf net)으로 채집하여 어류의 종조성 특성을 조사하였다. 조사기간 동안 총 30종, 5,511개체, 6,933.4 g의 어류가 채집되었다. 우점종은 베도라치(Pholis nebulosa), 실고기(Syngnathus schlegeli), 그물코쥐치(Rudarius ercodes), 가시망둑(Pseudoblennius cottoides), 볼락(Sebastes inermis), 실비늘치(Aulichthys japonicus)로 총 출현 개체수의 93.4%를 차지하였다. 출현한 대부분의 어류는 크기가 작거나 대형 어종의 유어들로 이루어져 있었다. 잘피의 밀도는 2011년 4월이 가장 높았으며 2011년 1월이 가장 낮았다. 수온과 잘피의 밀도 및 중량, 주 먹이생물의 양적 변동이 어류 군집의 계절변동에 영향을 미치는 것으로 나타났으며, 풍화 잘피밭이 많은 어종들에게 좋은 성육장의 역할을 하고 있는 것으로 생각된다.