Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
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The Characteristic of Long Term Variation of the Water Quality from Hansan-Geoje bay, Korea

한산거제만 해역의 수질 장기변동 특성

  • 권정노 (국립수산과학원 어장환경과) ;
  • 박영철 (국립수산과학원 남동해수산연구소) ;
  • 엄기혁 (국립수산과학원 해역이용영향평가센터)
  • Received : 2013.06.07
  • Accepted : 2013.08.07
  • Published : 2013.08.25
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Abstract

To study characteristics of the water quality in the Hansan-Geoje bay, we analyzed the long term monitoring data collected at the two sites during the period of 1987~2010. The trophic state of the waters in Hansan-Geoje bay was the mesotrophic level by the classification of Wasmud et al.[2001]. The water nutrients increased steadily from a wet season (Aug.), it reached the maximum concentration peak in a dry season (Nov.), and then decreased steadily to the winter, it reached at the minimum value in May in the next year. The result of factor analysis divided the waters of Hansan-Geoje bay into the five factors (nutrient, season, inflow land water, pollution, internal production) and the factors represented the 76.82% on the status of the waters. According to time series analysis, temperature, DO and bottom DIP were increased, and pH and COD were decreased during the period of 1987~2010. In particular, the fluctuation trend of DIN has been turned from oversupply to shortage by the N/P ratio since before and after 1990's. The water quality of the Hansan-Geoje bay has been recovered except DIP since 1987, despite of its geographical characteristic which is a general semi-closesd bay and a massive aqua-culture ground. To preserve the waters in Hansan-Geoje bay, we need to know on the cause of the increase or accumulation of DIP, and we should continue to study on the interrelation between the aqua-culture and water environment.

한산거제만 해역의 장기수질 특성을 알기 위해 1987년부터 2010년까지 만내 2개 정점에 대한 표 저층 수질에 대한 장기관측 자료를 분석하였다. 한산거제만 해역의 수질 영양수준은 중영양(Mesotrophic) 단계이고, 영양염은 대체로 하계인 8월부터 꾸준히 증가하여 갈수기인 11월에 최대 농도를 보인 후, 동계를 지나 이듬해의 춘계인 5월에 최저 농도가 되는 계절적 변동 특성을 보였다. 요인분석 결과 한산거제만은 영양염, 계절, 담수유입, 오염 및 내부생산 등의 5개 요인이 해역 수질 특성의 76.82%를 설명할 수 있는 것으로 나타났다. 시계열분석 결과 수온, DO 및 저층 DIP는 증가, pH 및 COD는 감소하는 경향을 보였다. 특히 N/P비를 기준으로 DIN의 변동 추세는 1990년대를 전 후하여 과잉에서 부족으로 전환되었다. 또한 한산거제만은 전형적인 폐쇄성 내만이며 대규모 양식이 이루어지고 있음에도 1987년 이후 DIP를 제외하곤 수질이 대체로 개선되고 있는 것으로 나타났다. 한산거제만 해역의 지속적 이용과 보존을 위해서는 DIP 증가 또는 축적의 원인 파악이 필요하며, 이를 위해 한산거제만의 주요 양식생물과 환경과의 상호관계 등에 대한 연구가 필요하다.

Keywords

References

  1. 국립수산과학원, 2011, 한산.거제만 해역 패류양식장 위생조사 보고서, 1-8.(NFRDI, 2011, Annual report of the sanitation survey on the aquaculture ground of shellfish in Hansan-Geoje bay, 1-8).
  2. 국립수산과학원, 2013, 어장환경통합모니터링 운영지침, 1-15 (NFRDI, 2013, Management manual of the marine environmental around aquaculture area, 1-15).
  3. Cho, Chang Hwan, 1980, Farming density of oyster of in Hansan-Geoje bay, Bull. Korean Fish. Soc., Vol. 13, No. 2, 45-56.
  4. Cho, Yoon-Sik, Sok-Jin Hong, Sung-Eun Park, Rae-Hong Jung, Won-Chan Lee and Suk-Mo Lee, 2010. Application of Ecological Indicator to Sustainable Use of Oyster Culture Grounds in GeojeHansan Bay, Korea, Journal of Korea Society of Marine Environment & Safety, Vol. 16, No. 1, 21-29.
  5. Kim, Dongseon, Hyun-woo Choi, Kyung Hee Kim, Jin Hyun Jeong, Seung Ho Baek and Yong-Ok Kim, 2011. Statistical Analysis on the Quality of Surface Water in Jinhae Bay during Winter and Spring, Ocean and Polar Research, Vol. 33, No. 3, 291-301. https://doi.org/10.4217/OPR.2011.33.3.291
  6. Kim, Baeck Oon and Chang Kyung Lee, 2009. Estimation of Historical Shoreline on a Coastal Reclaimed Land (I): The Use of Aerial Photographs, Journal of the Korean Society of Coastal and Ocean Engineers, Vol. 21, No. 5. 371-379.
  7. Kim, Jeong-Bae, Sang Yong Lee, Jun Yu, Yang Ho Choi, Chang-Su Jung and Pil-Yong Lee, 2006. The charateristic of oxyen deficient water mass in Gamak bay, Journal of the Korean Society for Marine Environmental Engineering, Vol. 9, No. 4, 216-224.
  8. Kwon, Jung-no, Jong-Gu Kim and Tae-Seung Ko, 2001. The Estimation of Water Quality Changes in the Kuem River Estuary by the Dyke Gate Operation Using Long-Term Data, J. Korean Fish. Soc, Vol. 34, No. 4, 348-354.
  9. Kwon, Jung-no, 2010, Characteristic of long term variation of the water quality at the waters of Goseong bay, Journal of the Korean Society for Marine Environmental Engineering, Vol. 13, No. 4, 279-287.
  10. Lee, Jae Seong, Kee Hyun Kim, Seong Soo Kim, Rae Hong Jung, Kui Young Kim, Jong Soo Park, Pil Yong Lee, Yong Sik Lee, Woo Jung Choi, Yong Chul Park, Pyung Jung Kim, Won Chan Lee, Jung No Kwon, Ki Hyuk Uym, Jeong Il ChoiI, Kyung ahm Jeon and Jung Hee Han, 2004, The assessment of trophic state and the importance of benthic boundary layer in the southern coast of Korea,The sea Journal of the Korean Society of Oceanography, Vol. 9, No. 4, 179-195.
  11. Park, Jong Soo, Hyung Chul Kim, Woo Jeung Choi, Won Chan Lee and Chung Kil Park, 2002. Estimating the Carrying Capacity of a Coastal Bay for Oyster Cuture: I. Estimating a Food Supply to Oysters Using an Eco- hydrodynamic Model in Geoje-Hansan Bay, J. Korean Fish. Soc, Vol. 35, No. 4, 395-407. https://doi.org/10.5657/kfas.2002.35.4.395
  12. Park, Soung-Yun, Hyung-chul Kim, Pyoung-Joong Kim, Gyung-Soo Park, Joen-Young Ko, Sang-Baek Jeon, Seung- Min Lee and Jong-Soo Park, 2009. Long-term Variation and Characteristics of Water Quality in the Garolim Coastal Areas of Yellow Sea, Korea, Journal of the Korean Society of Marine Environmental & Safety, Vol. 15, No. 4, 315-328.
  13. Wang, G, T,F,, Gong, G-C,, Liu, K-K, and Pai, S-C, 1998, 'Excess nitrate' in the East China Sea, Est. Coast. Shelf Sci., 46, 411-418. https://doi.org/10.1006/ecss.1997.0287
  14. Wasmund, N,, A, Andrushaitis, E, Lysiak-Pastuszak, B, Muller-Karulis, G, Nausch, T, Neumann, H, Ojaveer, I, Olenina, L, Postel and Z, Witek, 2001, Trophic status of the South-Eastern Baltic Sea: A comparison of coastal and open areas, Est. Coast. Shelf Sci., 53, 849-864. https://doi.org/10.1006/ecss.2001.0828

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