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A Study on the Relationship between Cyanobacteria and Environmental Factors in Yeongcheon Lake

영천호에서 남조류 발생과 환경요인의 관련성 연구

  • Received : 2019.04.09
  • Accepted : 2019.07.18
  • Published : 2019.07.30

Abstract

The purpose of this study is to analyze the characteristics and correlations of the Yeongcheon Lake in order to reduce the occurrence of harmful cyanobacteria. In this study, we investigated the water quality and phytoplankton of the lake from May to November in 2017. Correlation and data mining analyses were performed to analyze the relationship between the two factors. The water temperature was lowest at the point where the Yeongcheon Lake inflow occurs at Imha Lake. It was highest at the point where the outflow occurs to Angye Lake. The pH was also highest at the outflow point, but in the case of DO, it was highest at the midpoint between the inflow and outflow. The main cyanobacteria that emerged during the study period were Oscillatorialimosa, Microcysti saeruginosa and Aphanizomenon flos-aquae. As a result of correlation analysis, the water temperature, inflow, COD loading, TOC loading at the inflow point of the Yeongcheon Lake were the items that were related to the harmful cyanobacteria. The data mining analysis indicated that the TP loading and harmful cyanobacteria in the inflow point of the Yeongcheon Lake were influential on the detrimental cyanobacteria in the Yeongcheon Lake outflow point. When the TP loading was less than 39.0 kg/day at the inflow site, it was expected that the amount of harmful cyanobacteria could be maintained below 10,000 cells/mL.

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Fig. 1. Map showing the sampling stations in the upper region of the Yeongcheon Lake.

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Fig. 2. Daily fluctuations of air temperature, 7 days precipitation, daylight hours, water level, inflow and outflow reach of the Yeongcheon Lake from the survey period.

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Fig. 3. Change of phytoplankton standing crops by survey period andfour sampling stations of the Yeongcheon Lake.

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Fig. 4. Change of harmful cyanobacteria standing crops by survey period and five sampling stations of the Yeongcheon Lake.

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Fig. 5. Comparison of cyanobacteria decision tree regression formula and the Y-4 cyanobacteria cells

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Fig. 6. Changes in the number of Y-4 cyanobacteria cells according to Y-2 TP loading

Table 1. Physical and chemical characteristics of LakeYeongcheon determined during the experimental period. The values indicate mean, standard deviation and range (maximum and minimum).

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Table 2. Correlation between the number of harmful Cyanobacteria cells in Yeongcheon Lake and water quality factors.

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Table 3. Model formula of harmful cyanobacteria in Y-4 derived from data mining.

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References

  1. Bae, M. S. and Hwang, J. A. (2012). Management method of non-point source pollution in Chung-cheong bukdo animal husbandry, 2012-28, Chungbuk Reseasrch Institute, 1-99. [Korean Literature]
  2. Byeon, K. D., Kim, G. Y., Lee, I. J., Lee, S. R. M., Park, J. R., Hwang, T. M., and Joo, J. C. (2016). Investigation and evaluation of algae removal technologies applied in domestic rivers and lakes, Journal of Korean Society of Environmental Engineers, 38(7), 387-394. [Korean Literature] https://doi.org/10.4491/KSEE.2016.38.7.387
  3. Choi, D. H., Jeon, J. H., and Kim, T. D. (2015). Delivery analysis of nonpoint source pollutants at Imha lake basin: SS load characteristics, Journal of the Korean Society of Urban Environment, 15(2), 109-116. [Korean Literature]
  4. Choi, S. I. (2018). What should be done to vanish algal bloom?, Korean society of civil engineers magazine, 66(7), 10-13. [Korean Literature]
  5. Chung, S. Y., Ko, J. I., Kwon, B. G., and Umme, S. (2017). Isolation of bacterial strains inhibiting the growth of microcystis aeruginosa and cyanobacterium growth inhibition assay, Journal of Wetlands Research, 19(4), 443-450. [Korean Literature] https://doi.org/10.17663/JWR.2017.19.4.443
  6. Guiry, M. D. and Guiry, G. M. (2017). AlgaeBase, http://www.algaebase.org. (accessed Nov. 2017)
  7. Han River Environment Research Center. (2013). How to be familiar with phytoplankton, Han River Environment Research Center, 1-42. [Korean Literature]
  8. Han River Flood Control Office. (2017). Water resources management information system (WAMIS), http://www.wamis.go.kr/ (accessed Nov. 2017)
  9. John, D. M., Whitton, B. A., and Brook, A. J. (2011). The freshwater algal flora of the british isles: an identification guide to freshwater and terrestrial algae, second edition, Cambridge University Press, New York, 1-896.
  10. John, D. W., Robert, G. S., and Kociolek. J. P. (2015). Freshwater algae of north america, second edition, Academic Press, Cambridge, 1-1066.
  11. Kim, J. I. (2014). A correlation between the algal growth and water quality factors depended on algae growth stages in lake Unmun, Master's thesis, Keimyung University, Daegu, Korea, 47. [Korean Literature]
  12. Kim, M. H. (2015). Characteristics of TOC/COD ratio in Korean agricultural reservoir, Master's thesis, Hanyang University, Seoul, Korea, 76. [Korean Literature]
  13. Kim, N. Y., Park, M. H., Hwang, S. O., Kim, B. H., and Hwang, S. J. (2015). Combined effects of filter-feeding bivalve and zooplankton on the growth inhibition of cyanobacterium microcystis aeruginosa, Korean Journal of Ecology and Environment, 48(2), 108-115. [Korean Literature] https://doi.org/10.11614/KSL.2015.48.2.108
  14. Kim, S. C. and Kim, H. S. (2004). Dynamics of phytoplankton community and the physico-chemical environmental factors in Youngchun dam, Algae, 19(3), 227-234. [Korean Literature] https://doi.org/10.4490/ALGAE.2004.19.3.227
  15. Kim, W. S. (2012). A study on factors of education's outcome in liberal computer education using regression and data mining analysis, Korean Journal of General Education, 6(3), 743-767. [Korean Literature]
  16. Komarek, J. and Anagnostidis, K. (1999). Cyanoprokaryota 1 Teil: Chroococcales, Ettl, H., Gartner, G., Heynig, H. and Mollenhauer, D. (eds.), Su$\ss$wasserflora von Mitteleuropa, 19(1), Gustav Fischer, Jena-Stuttgart-Lubeck-Ulm, 1-548.
  17. Komarek, J. and Anagnostidis, K. (2005). Cyanoprokaryota. 2 Teil/2nd Part, Oscillatoriales, Budel, B., Krienitz, L., Gartner, G. and Schagerl, M.(eds), Susswasserflora von Mitteleuropa, 19(2), Elsevier GmbH, Heidelberg, 1-759.
  18. Korea Meteorological Administration (KMA). (2017). Weather data opening system, https://data.kma.go.kr/ (accessed Nov. 2017)
  19. Lee, H. J. (2010). A study on the runoff characteristics of non-point source pollution with resources of livestock compost-A case of cow Manure-, Ph. D. Dissertation, Hanseo University, Seosan, Korea, 80. [Korean Literature]
  20. Lee, K. L., Jheong, W. H., Kang, Y. H., and Kim, H. S. (2009). Evaluation of the potential human health risk associated with the microcystin bioaccumulation in the freshwater fish from lake Yeongcheon and lake Daecheong, Korean Journal of Limnology, 42(3), 331-339. [Korean Literature]
  21. Lee, K. L., Jheong, W. H., Kim, J. M., Kim, Y. S., Choi, H. J., and Kim, H. S. (2008). Seasonal variations of cyanobacterial toxins (mirocystins) in Yeongchun reservoir, Korean Journal of Limnology, 41(2), 264-274. [Korean Literature]
  22. Lee, K. L., Shin, Y. N., Lee, J. A., Lee, J. K., and Kim, H. S. (2016). Distribution of toxic and non-toxic microcystis in Korean water supply, Korean Journal of Ecology and Environment, 49(4), 393-399. [Korean Literature] https://doi.org/10.11614/KSL.2016.49.4.393
  23. Lee, S. M., Park, K. D., and Kim, I. K. (2018). Study on the relationship between cyanobacterial harmful algae blooms and nutrient ratio in mid-down stream of Nakdong river, Journal of Korean Society on Water Environment, 18(3), 387-388. [Korean Literature]
  24. Ministry of Environment (ME). (2007). Water pollution total amount management system, Ministry of Environment, 281-378. [Korean Literature]
  25. Ministry of Environment (ME). (2012). Nationwide water pollution source survey results, http://wems.nier.go.kr/ (accessed Nov. 2017)
  26. Ministry of Environment (ME). (2016a). E-book System, http://eng.me.go.kr/home/web/board/read.do?boardId=652230&boardMasterId=54 (accessed Aug. 2018)
  27. Ministry of Environment (ME). (2016b). Water pollution standard method, Ministry of Environment, 1-1331. [Korean Literature]
  28. Ministry of Environment (ME). (2017). Water environment information system, http://water.nier.go.kr/ (accessed Nov. 2017)
  29. Nakdong River Environment Research Center. (2014). Survey of lake environment and ecosystem in the Nakdong river system, Nakdong River Environment Research Center, 93-142. [Korean Literature]
  30. National Institute of Environmental Research (NIER). (2017). Manual for operation of algae alert system, National Institute of Environmental Research, 1-129. [Korean Literature]
  31. Park, J. G. (2012). Algal flora of Korea-freshwater cyanoprokaryota I. Cyanophyta: Cyanophyceae: Chroococcales, Oscillatoriales, 5(1), The National Institute of Biological Resources, 1-71.
  32. Park, J. W., Kim, H. S., and Lee, W. H. (2013). Optimal temperature for H2 production and population growth of the $N_2$-fixing unicellular cyanobacterial strains from Korean coasts, Transactions of the Korean Hydrogen and Energy Society, 24(1), 20-29. [Korean Literature] https://doi.org/10.7316/KHNES.2013.24.1.020
  33. Park, K. S. (2016). A study on the management and outflow characteristics of livestock in watershed of So-Ok stream, Master's thesis, Hanbat National University, Daejeon, Korea, 62. [Korean Literature]
  34. Park, M. H., Lee, S. J., Yoon, B. D., and Oh, H. M. (2001). Effects of CellCaSi and Bioflocculant on the control of algal bloom, Korean Journal of Environment Biology, 19(2), 129-135. [Korean Literature]
  35. Ryu, H. S. (2017). Taxonomy and toxigenecity of bloom-forming aphanizomenon spp. and related species within the nostocales (Cyanophyceae), Ph. D. Dissertation, Daegu University, Gyeongbuk, Korea, 119. [Korean Literature]
  36. Seo, K. A., Jung, S. J., Park, J. H., Hwang, K. S., and Lim, B. J. (2013). Relationships between the characteristics of algae occurrence and environmental factors in lake Juam, Korea, Journal of Korean Society on Water Environment, 29(3), 317-328. [Korean Literature]
  37. Shin, Y. S. (2017). Runoff characteristics and loads estimation of non-point pollutants in small watershed, Master's thesis, Inje University, Gimhae, Korea, 90. [Korean Literature]