Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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The Trophic State Assessment using Biochemical Composition in the Surface Sediments, the Southern Coast of Korea

표층 퇴적물의 생화학적 조성을 이용한 남해연안 영양상태 평가

  • Cho, Yoon-Sik (Marine Environment Research Division, National Fisheries Research & Development Institute) ;
  • Kim, Yoon-Bin (Marine Environment Research Division, National Fisheries Research & Development Institute) ;
  • Lee, Won-Chan (Marine Environment Research Division, National Fisheries Research & Development Institute) ;
  • Hong, Sok-Jin (Marine Environment Research Division, National Fisheries Research & Development Institute) ;
  • Lee, Suk-Mo (Major of Ecological Engineering, Pukyung National University)
  • 조윤식 (국립수산과학원 어장환경과) ;
  • 김윤빈 (국립수산과학원 어장환경과) ;
  • 이원찬 (국립수산과학원 어장환경과) ;
  • 홍석진 (국립수산과학원 어장환경과) ;
  • 이석모 (부경대학교 생태공학과)
  • Received : 2013.01.11
  • Accepted : 2013.04.25
  • Published : 2013.04.30
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Abstract

In order to classify the trophic state and environmental quality of marine coastal system, an approach using the characteristics and biochemical composition in the sediments can be available. This research, including 25 coastal bay, belong to 131 stations, was carried out along the south coasts of Korea in February 2007. Type of sediment, total ogranic carbon, total nitrogen, phytopigments and biochemical composition(proteins, lipids, carbohydrates) were analyzed. Result from Multi-dimensional Scaling(MDS) ordination indicates that four group can be identified. The result of ANOVA with tukey test shows that the concentrations of proteins, carbohydrates and biopolymeric carbon were significantly different to four groups. We propose the trophic state classification for these groups using the biochemical composition of sediment organic matter. I group(Masan, Jinhae, Haengam) has been defined as hypertrophic state, II group(Tongyeong, Goseong；Jaran, Geoje et al.), as eutrophic; III group(Gamak, Deungnyang, Yeoja et al.), as mesotrophic and IV group(Sinan, Jindo, Muan), as oligotrophic. On the basis of results reported in this study, the biochemical composition of sediment organic matter could be considered an useful and sensitive tool for the classification of the trophic state of marine coastal systems.

연안생태계의 영양상태와 환경적 질을 평가하기 위하여, 2007년 2월 남해연안의 총 25개 소해역, 131개 정점을 대상으로 표층 퇴적물의 입도조성, 광합성 색소, 총유기탄소, 총질소, 생화학적 조성(단백질, 탄수화물, 지질) 등을 분석하였다. 다차원 분석 결과 4개의 그룹으로 나뉘었으며, 일원분산분석에서 단백질, 탄수화물, biopolymeric carbon 농도의 차이가 뚜렷하게 나타났다. 이를 토대로 퇴적물 내 생화학적 조성을 이용한 영양상태 기준을 설정하였으며, 조사해역의 영양상태를 평가한 결과 산업폐수 및 생활하수 유입이 많은 마산만, 진해만, 행암만을 포함한 I그룹을 과영양 상태, 양식시설이 밀집한 통영, 고성 자란, 거제연안 등의 II그룹은 부영양 상태로 추정되었으며, 가막만, 득량만, 여자만 등의 III그룹은 중영양 상태로, 나머지 신안, 진도, 무안을 포함한 IV그룹은 빈영양 상태로 추정되었다. 본 연구결과로 퇴적물의 생화학적 조성을 이용한 영양상태 구분은 연안역의 영양도 평가를 위하여 유용한 방법으로 사용되어 질 수 있다고 판단된다.

Keywords

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