Evaluation of the Bacteriological Safety for the Shellfish Growing Area in Hansan.Geojeman, Korea

“…Results of correlation analyses between sanitary indicator bacteria and physical parametersHa et al, 2009). 이러한 결과를 거제만에서 강우가 없는 건기동안의 위생상태로 간주하고, 본 조사결과와 비교하 면 거제만 해역에서 11.5 mm의 강우 시에는 강우 직후 육지에 가까운 일부 지점에서 분변계대장균이 14 MPN/100 mL 내외 로 검출되어 건기의 수질상태를 약간 초과하였으나 24시간 후에는 건기의 수질상태로 완전 회복하였다.…”

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Impact of Rainfall Events on the Bacteriological Water Quality of the Shellfish Growing Area in Korea

Lee¹,

Oh²,

Yu³

et al. 2010

Korean Journal of Fisheries and Aquatic Sciences

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The impact of rainfall events on the sanitary indicator bacteria density of the shellfish-growing waters in Geoje Bay and Jaran Bay in Korea was investigated. The shellfish-growing area in Geoje Bay, which is a nearly closed basin, was not affected significantly, except near the stream mouth after 11.5 mm of rainfall in 1 day. However, most of the shellfish-growing water in the bay was polluted by fecal coliform bacteria after rain as heavy as 43.0 mm, and the levels of fecal indicator bacteria in some of the sea near the coast did not recover completely until 24 hours after the rainfall. By contrast, in Jaran Bay, which has no significant pollution source in the drainage area, although 9.3-490 MPN/100 mL of fecal coliform bacteria were detected near the stream mouth after rainfall of 33.5 and 81.0 mm, a very low level of the indicator bacteria was detected in the designated shellfish-growing area. During the investigation, the correlations between the sanitary indicator bacteria density and physical parameters, such as salinity and turbidity, were evaluated. Both the total coliform and fecal coliform densities were inversely correlated with salinity. Turbidity was positively correlated with the indicator bacteria density. The survey results suggest that for more efficient management of the shellfish-growing areas located in coastal areas, such as shellfish harvesting after rainfall, a detailed investigation of the effects of rainfall on the bacterial water quality in each growing area is needed.

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“…(Kim, 1975;Kwon et al, 2007;Ha et al, 2009;Shim et al, 2009;Park et al, 2010). (Malouf and Breese, 1977;Incze et al, 1980;Lee et al, 2008).…”

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confidence: 99%

Sanitary assessment of the oyster rack culture waters in Wando, Korea

Kang¹,

Cho²,

Kim³

et al. 2015

The Korean Journal of Malacology

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To introduce an oyster rack culture in tidal flat of Wando-gun, Korea, we investigated sanitary conditions from 2012 April to 2013 March in oyster growing waters and adjacent area in Wando. Average seawater temperature and salinity ranged 8.6-28.0℃ and 26.2-33.6 psu, respectively. The coliform group and fecal coliform of seawater ranged < 1.8-13.0 MPN/100 mL each. Only one of 60 samples was exceeded in the European criteria of fecal coliform. Influence of adjunct basin's pollution load on cultural waters was negligible, which half radius of dilution was not above 300 m. According to our observation, however, landing of oyster should be banned for at least 5 days after the heavy rainfall. Our findings meet the sanitary seawater criteria for domestic use and export of shellfish and classified as 'Class A' in European Community regulations for bivalve culture.

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Evaluation of the Bacteriological Safety for the Shellfish Growing Area in Hansan.Geojeman, Korea

Cited by 8 publications

References 3 publications

Evaluation of the Influence of Inland Pollution Sources on Shellfish Growing Areas after Rainfall Events in Geoje Bay, Korea

Evaluation of the Influence of Inland Pollution Sources on Shellfish Growing Areas after Rainfall Events in Geoje Bay, Korea

Impact of Rainfall Events on the Bacteriological Water Quality of the Shellfish Growing Area in Korea

Sanitary assessment of the oyster rack culture waters in Wando, Korea

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