The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
권호 표지

Origin and Spatial Distribution of Organic Matter at Gwangyang Bay in the Fall

추계 광양만의 유기물 기원과 분포 특성

  • 이영식 (국립수산과학원 남해수산연구소 양식환경연구센터) ;
  • 강창근 (부산대학교 생물학과) ;
  • 최용규 (국립수산과학원 남해수산연구소) ;
  • 이상용 (국립수산과학원 남해수산연구소)
  • Published : 2007.02.28
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Abstract

Environment factors related to the distribution of organic matter in surface seawater and sediments were investigated to estimate main pollution sources and range of their influence in Gwangyang Bay. The main pollution sources for the factors that affect organic matter distribution could be divided into three main sources: fresh water runoffs from Seomjin and Dong River, Gwangyang-si domestic sewage, and Yosu Industrial Complex. Considering the characteristics in horizontal distributions of the environmental factors in water column, sediment, and water current regime, the influencing range of these main sources was likely to be divided into three areas within the bay as follows: Area I receiving lots of fresh water from Seomjin River, Area II receiving lots of domestic sewage from Gwangyang-si and fresh water of Dong River, Area III receiving lots of materials from Yosu Industrial Complex. Area I seems to be characterized as low salinity, high concentration of $NO_3-N,\;and\;SiO_2-Si$, Area II as low salinity, high concentration of $NO_3-N,\;NH_4-N,\;and\;SiO_2-Si$, and Area III as high water temperature, high concentration of $NH_4-N,\;and\;PO_4-P$ in water column, high concentration of $NH_4-N,\;PO_4-P,\;and\;SiO_2-Si$ in surface sediments.

유기물 증가에 미치는 환경인자를 중심으로 그 수평분포 특성, 원인, 주요오염원의 영향권에 대하여 검토하기 위해 표층 해수와 표층 퇴적물을 조사하였으며, 그 결과를 요약하면 다음과 같다. 유기물변동에 영향을 미치는 환경인자에 대한 주요 오염원은 크게 섬진강과 동천 등의 담수, 광양시 생활하수, 여수산업단지로 크게 나누어볼 수 있었다. 해수와 퇴적물의 환경인자에 대한 수평분포 특성과 해수의 흐름 등을 고려하여 이들 주요 오염원의 영향권을 구분한 결과, (I) 섬진강 담수의 영향을 많이 받는 해역, (II) 광양시와 동천의 영향이 큰 해역, (III) 여수 산업단지의 영향을 많이 받는 해역으로 나누어졌다. 그리고, 오염원의 영향권 별 수질환경인자의 특성으로는 섬진강 담수의 영향을 많이 받는 해역은 낮은 염분, 높은 농도의 $NO_3-N$과 $SiO_2-Si$, 담수와 생환하수의 영향이 큰 해역은 낮은 염분, 높은 농도의 $NO_3-N,\;NH_4-N,\;SiO_2-Si$, 여수 산업단지의 영향을 많이 받는 해역은 표층해수의 경우 높은 수온, 높은 농도의 $NH_4-N$과 $PO_4-P$, 퇴적물의 경우 높은 농도의 $NH_4-N,\;PO_4-P,\;SiO_2-Si$로 특징 지울 수 있을 것으로 보인다.

Keywords

References

  1. 해양수산부, 2002. 해양환경공정시험방법, 330pp
  2. Chung, C. S., Kim, S. H., Kang, D. J., Park, Y. C., Yoon, C. O and Hong, G. H, 1999. A Study on the Evolution of Eutrophicatioin in Masan Bay by Analyses of Pigment Derivatives from a Sediment Column. Journal of the Korean Society of Oceanography, 4: 101-106
  3. Kang, C.-K., Kim, J. B., Lee, K.-S., Kim, J. B., LEE, P.-Y and Hong, J.-S, 2003. Trophic importance of benthic microalgae to macrozoobenthos in coastal bay systems in Korea: dual stable C and N isotope analyses. Marine Ecology Progress Series, 259: 79-92 https://doi.org/10.3354/meps259079
  4. Kim, D. H., Cho, H.-S and Lee, Y. S, 2005. The Characterstic of Point Source Loads for Nitrogen and Phosphorus to Gwangyang Bay, Korea. Journal of the Korean Society for Marine Environmental Engineering, 8: 1-8
  5. Lee, Y. S., T. Mukai, K. Takimoto and M. Okada, 1996. Estimation of limiting nutrient by algal assay procedure with indigenous phytoplankton assemblage. Jpn. Soc. Water Environ. 19: 373-380 https://doi.org/10.2965/jswe.19.373
  6. Lee, Y. S., Lee, J. S., Jung, R. H., Kim, S. S., Go, W. J., Kim, K. Y and Park, J. S, 2001. Limiting Nutrient on Phytoplankton Growth in Gwangyang Bay. Journal of the Korean Society of Oceanography, 6: 201-210
  7. Lee, Y. S., Yu, J., Kwon, K.-Y., Choi, Y. K., Cho E. S., 2004. Temporal and spatial variations of limiting nutrient on phytoplankton growth in the Gwangyang Bay, Korea. J. of KSEE 26: 890-895
  8. National Oceanographic Research Institute, 2002. Tidal Current Charts (Approaches to Gwangyang Hang). Ministry of Maritime Affairs and Fisheries Republic of Korea, 11-1520290-000048-14
  9. Schreiber, U., Gademann, R., Bird, P., Ralph, P. J., Larkum, A. W. D., Kuhl, M. 2002. Apparent light requirement for activation of photosynthesis upon rehydration of desiccated beachrock microbial mats. J. Phycol. 38: 125-134 https://doi.org/10.1046/j.1529-8817.2002.01103.x
  10. Sudo, R., Tai, S., Yagi, O., Okada, M., Hosomi, M., and Yamane A. N., 1981. Determination of algal growth potential by algal assay procedure (Comprehensive studies on the eutrophication of freshwater areas). Research Report from the National Institute for Environmental Studies, No. 26, 53 pp
  11. Yeo, H. G and Shim, J. H, 1992. Ecological effect ofthermal effluent in the Korean Coastal Waters III. Abiotic environment and the community structure of primary producers in the vicinity of Kori nuclear power plant. Korean J. Environ. BioI., 10: 122-142