Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Bacteriological and Physicochemical Character of Sea Water and Sediments in South Western Part of Jinhae Bay, Korea

진해만 남서부 해역의 해수와 저질의 세균학적 및 이화학적 특징

  • Choi Jong Duck (Department of Marine Food Science and Technology / Institute of Marine Science, Gyeongsang National University) ;
  • Kim Jeong Gyun (Department of Marine Food Science and Technology / Institute of Marine Science, Gyeongsang National University)
  • 최종덕 (경상대학교 수산가공학과/해양산업연구소) ;
  • 김정균 (경상대학교 수산가공학과/해양산업연구소)
  • Published : 2002.11.01
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Abstract

The bacteriological and physicochemical analysis of sea water and sediments in south western part of Jinhae Bay was conducted. The samples were collected from 40 stations, which were established once a month from January to December, 2000. During the study period, the range of temperature was from 5.5 to $23.7^{\circ}C$, the concentration of chemical oxygen demand ranged from 1.20 to 1.55 mg/L, dissolved oxygen ranged from 3.7 to 9.1 mg/L, dissolved inorganic nitrogen ranged from 2.79 to 7.09 $\mu$g-at/L phosphate phosphorus ranged from 0.39 to 0.57 $\mu$g-at/L, and chlorophyll-$\alpha$g-at/L ranged from 4.28 to $9.66 mg/m^{3}$. The chemical oxygen demand, acid volatile sulfide and ignition loss of sediments in south western part of Jinhae Bay ranged from 0.04 to 0.40, from 24.23 to 35.52 mg/L and from 10.49 to $11.09\%$ respectively. The coliform group and fecal coliform MPN's of sea water in south western part of Jinhae Bay ranged from <3.0 to 1,600 MPN/1003nL (means <3.0 MPN/100 mL) and from <3.0 to 93 MPN/100 mL (means <3.0 MPN/ 100 mL), respectively. The coliform group was classified with IMViC reactions were analyzed. Two hundred eighteen strains that were obtained from sea water samples in south westen of Jinhae Bay represented Escherichia coli group, $61.9\%$; Citrobacter freundii group, $12.1\%$; Enterobacter aerogenes, $14.1\%$; and unknown, $11.9\%$.

진해만 남서부해역 해수 및 저질의 물리 화학적 해양환경 특성과 위생지표세균을 조사하여 어장의 환경개선과 회복에 기초자료를 제공하고자 하였다. 조사기간중 안정 및 고현만 해수의 수온은 $5.5\~23.7^{\circ}C$, 평균 $14.9^{\circ}C$, 화학적산소요구량은 1.20-1.55, 평균 1.40mg/L $\cdot$ dry, 용존산소는 3.7$\~$9.1, 평균 6.8mg/L, 용존무기질소 2.79$\~$7.09, 평균 4.65$\mu$g-at/L, 인산인은 0.39$\~$0.57, 평균 0.47$\mu$g-at/L, chlorophyll-$\alpha$는 4.28$\~$9.66, 평균 $6.74mg/m^{3}$ 범위였으며 염분농도는 30.08$\~$31.75, 평균 30.87이 었다. 진해만 남서부 해역 저질 중의 0$\~$15cm에서 화학적산소요구량은 15.95$\~$35.52 mg/g $\cdot$ dry, 평균값은 29.16 mg/g $\cdot$ dry이었고, 황화수소는 0.01$\~$0.51 mg/g $\cdot$ dry, 평균값 0.15mg/g dry, 강열감량은 9.14$\~$13.48, 평균값은 $10.77\%$로 조사되었다. 진해만 남서부 해역 해수의 $6.5\%$와 $3.8\%$가 패류 수출해역 수질기준 중 total coliform group과 fecal coliform group의 기준치를 각각 초과하였다. 대장균군형 은 Escherichia coli group이 $61.9\%$를 차지하였고, 그 중 type I 이 50.2%, Citrobacter rreundii group이 $12.1\%$, Entero-bacter aerogenes group이 $14.1\%$, 기타 $11.9\%$에 해당하였다. 대장균군 중에서 전형적인 온혈동물의 장관유래균인 Escherichis colitype 1이 전체의 $50.2\%$를 차지하였다.

Keywords

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