Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Assessment of the Marine Environment in Masan-Jinhae Bay of Korea in Relation to Algal Blooms

  • Lee, Moon-Ock (Dept. Naval Architecture and Ocean Engineering, Chonnam National University) ;
  • Kim, Pyeong-Joo (Land Ocean Environment Co. Ltd.) ;
  • Moon, Jin-Han (Dept. of Ocean Engineering, Graduate School, Chonnam National University)
  • Published : 2008.10.30
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Abstract

Masan-Jinhae Bay, in Korea, is known for its frequent algal bloom outbreaks. This study was conducted in order to examine the environmental characteristics of the area, with the aim of identifying indicators that could be used to speculate about future algal blooms. The water temperatures and salinities in Haengam Bay, one of the small inner bays within Jinhae, appeared to re relatively higher than those in Masan and Jinhae bays, across most seasons. Furthermore, stratification begins to develop in all three regions from spring to summer as a result of the local heating effects and an increase in the efficient from the surrounding land. As a result, anoxic conditions appear near the bottom layer of the bay, leading to the deterioration of water quality, which has been identified as one of the causes of bloom outbreaks. Compared to Haengam and Jinhae bays, concentrations of DIN and DIP were remarkably higher in Masan Bay. However, the mean ratio of DIN to DIP was 3.3$\sim$13.6 in all three regions throughout the year, suggesting that nitrogen can function as a growth-limiting factor for phytoplankton. The results of mathematical models showed that cumulative organic pollutants may be a trigger for direct algal bloom occurrences, since residual tidal currents appeared to be less than $3\;cm\;\cdot\;s^{-1}$. Furthermore, computed DO concentrations in the four small inner bays of Jinhae during the summer appeared to be $3\;cm\;\cdot\;l^{-1}$ indicating a hypoxic state. Likewise, computed Chl-a concentrations turned out to be more than $0.01\;mg\;\cdot\;l^{-1}$, indicating eutrophication across most seasons. Based on the overall results, Masan-Jinhae Bay appeared to possess a very high potential for algal bloom outbreaks at anytime during the year.

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References

  1. Ahn, Y.H., Shanmugam, P., Ryu, J.H. and Jeong, J.C. (2006). "Satellite Detection of Harmful Algal Bloom Occurrences in Korean Waters", Harmful Algae, Vol 5, pp 213-231 https://doi.org/10.1016/j.hal.2005.07.007
  2. Bowei, G.L., Mills, W.B., Porcella, D.B., Campbell, C.L, Pagenkopf, J.R, Rupp, G.L., Johnson, K.M, Chan, P.W.H., Gherrini, S. and Chamberlin, C.E. (1985). "Rates, Constants and Kinetics Formulations in Water Quality Modeling", Environmental Research Laboratory, EPA, US, Athens GA, Report No. EPA/600/3-85/040, June, pp 1-475
  3. Chen, Y. (2003). Numerical Modeling of Solute Transport Processes Using Higher Order Accurate Finite Difference Schemes, PhD thesis, University of Bradford, Bradford, UK, pp 1-308
  4. Cho, C.H. (1979). "Red Tide and Mortality of Culturing Oysters in Jinhae Bay in 1978", Bulletin of Korean Fisheries Science, Vol 12, No 1, pp 27-33
  5. Cho, H.Y. and Jeong, S.T. (2002). "Stratification and DO Concentration Changes in Chinhae-Masan Bay", Bulletin of Industrial Technology Development and Research, Wonkwang University, Korea, Vol 22, pp 81-94
  6. Cho, K.J., Choi, M.Y., Kwak, S.K., Im, S.H., Kim, D.Y., Park, J.K. and Kim, Y.E. (1998). "Eutrophication and Seasonal Variation of Water Quality in Masan-Jinhae Bay", Journal of the Korean Society of Oceanography, Vol 3, No 4, pp 193-202
  7. Choi, J.W. (2002). Studies on Water Quality Prediction Model Considering Seawater Behaviors and Ecosystem in Masan-Jinhae Bay, Master Degree Thesis of Engineering, Inje University, Busan, Korea, pp 1-119
  8. Choi, W.J., Park, C.K. and Lee, S.M. (1994). "Numerical Simulation of the Formation of Oxygen Deficient Water-masses in Jinhae Bay", Bulletin of Korean Fisheries Society, Vol 27, No 4, pp 413-433
  9. Falconer, R.A. and Chen, Y. (1991). "An Improved Presentation of Flooding and Drying and Wind Stress Effects in a Two-dimensional Tidal Numerical Model", Proceedings of Institution of Civil Engineers, Vol 2, pp 659-678
  10. Jung, T.S. (1996). "Three-dimensional Numerical Modeling of Tidal Currents in Masan-Jinhae Bay", Journal of the Korean Society of Civil Engineers, Vol 16, No 2-1, pp 63-72
  11. Kim, C.K. (1994). "A Three-dimensional Numerical Experiments for Tidal Currents and Wind-driven Currents in Jinhae Bay", Joumal of the Korean Society of Oceanography, Vol 29, No 2, pp 95-106
  12. Kim, C.K. and Lee, P.Y. (1994). "Water Mass Structure and Dissolved Oxygen Distribution in Chinhae Bay", Bulletin of Korean Fisheries Society, Vol 27, No 5, pp 572-584
  13. Kim, J.G., Park, C.K. and Shin, S.G. (1995). "The Eutrophication Modeling for Jinhae Bay in SummerSimulation of Phytoplankton Distribution by Ecosystem Model- ", Journal of Korean Society of Environmental Engineers, Vol 17, No 2, pp 121-135
  14. Kim, J.G., You, S.J. and Park, C.K. (1995). "The Eutrophication Modeling for Jinhae Bay in Summer The Countermeasures against Eutrophication in Jinhae Bay-", Journal of Korean Society of Environmental Engineers, Vol 17, No 3, pp 215-223
  15. Lee, M.O. and Baek, S.H. (1998). "The Prediction of Red Tides in Jinhae Bay Using a Discriminative Function", Journal of the Korean Environmental Sciences Society, Vol 7, No 1, pp 8-19
  16. Lee, M.O. and Kim, J.K. (2008). "Characteristics of Algal Blooms in the Southern Coastal Waters of Korea", Marine Environmental Research, Vol 65, No 2, pp 128-147 https://doi.org/10.1016/j.marenvres.2007.09.006
  17. Lee, Y.W. and Kim, G. (2007). "Linking Groundwater-borne Nutrients and Dinoflagellate Red-tide Outbreaks in the Southern Sea of Korea Using a Ra Tracer", Estuarine, Coastal and Shelf Science, Vol 71, pp 309-317 https://doi.org/10.1016/j.ecss.2006.08.004
  18. Lim, H.S., Diaz, R.J., Hong, J.S. and Schaffner, L.C. (2006). "Hypoxia and Benthic Community Recovery in Korean Coastal Waters", Marine Pollution bulletin, Vol 52, pp 1517-1526 https://doi.org/10.1016/j.marpolbul.2006.05.013
  19. Lin, B.L. and Falconer, R.A. (1997). "Two-dimensional layer -integrated of Estuarine Flows with Flooding and Drying", Estuarine, and Shelf Science, Vol 44, pp 737-751 https://doi.org/10.1006/ecss.1996.0158
  20. Lin, B.L. and Falconer, R.A. (2001). "Numerical Modeling of Three-dimensional Tidal Currents and Water Quality Indicators in the Bristol Channel", Water Maritime Engineering, Vol 3, pp 155-166
  21. The Korean Ministry of Environment, (1991). Investigation Report of Pollution Situation in Jinhae Bay Areas, Technical Report, Seoul, Korea, pp 1-502
  22. O'Conner, D.J. and Dobbins, W.E. (1958). "Mechanism of Re-aeration in Natural Streams", Transactions of the ASCE, Vol 123, pp 641-684
  23. Park, J.S. (1982). Red Tide Characteristics and Environmental Variations in Jinhae Bay, Technical Report, National Fisheries Research and Development Institute, Pusan, pp 55-88
  24. Rolley, H.S. and Owens, M (1967). "Oxygen Consumption Rates and Some Chemical Properties of River Mud", Water Research, Vol 1, pp 759-766 https://doi.org/10.1016/0043-1354(67)90018-8
  25. Tao, J., Li, Q. and Falconer, R.A. (2001). "Modeling and Assessment of Water Quality Indicators in a Semi -enclosed Shallow Bay", Journal of Hydraulic Research, Vol 39, No 6, pp 611-616 https://doi.org/10.1080/00221686.2001.9628290
  26. Wong, K.T.M, Lee, J.H.W. and Hodgkiss, L.J. (2007). "A Simple Model for Forecast of Coastal Algal Blooms", Estuarine, Coastal and Shelf Science, Vol 74, pp 175-196 https://doi.org/10.1016/j.ecss.2007.04.012
  27. Yanagi, T., Inoue, K., Montani, S. and Yamada, M. (1997). "Ecological Modeling as a Tool for Coastal Zone Management in Dokai Bay, Japan", Journal of Marine Systems, Vol 13, pp 123-136 https://doi.org/10.1016/S0924-7963(97)00006-7
  28. Yanagi, T., Yamamoto, T., Koizumi, Y., Ikeda, T., Kamizono, M. and Tamori, H. (1995). "A Numerical Simulation of Red Tide Formation", Journal of Marine Systems, Vol 6, pp 269-285 https://doi.org/10.1016/0924-7963(94)00027-9
  29. Yoshida, Y. (1973). "Changes in Biological Production in Low Trophic Levels", Fisheries Series, 1, Koseisha Koseikaku, Tokyo, Japan, pp 92-103