• 한국수산과학회지
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• 제42권5호
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• pp.449-455
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• 2009

In Hansan Geojeman area, 2,050 ha of shellfish growing area has been designated as shellfish production area for export. The main shellfish species from the designated area is oysters. For the sanitary management of the designated area established in Hansan Geojeman area, bacteriological examination of sea water and shellfish at the sampling stations inside and outside of the designated area were performed from January 2006 to December 2008. The range of fecal coliform of 756 sea water samples at 21 stations located in the designated area were <1.8~>1,600 MPN/100mL. And the range of geometric mean and the estimated 90th percentile of fecal coliform were 1.8~2.9 and 2.7~15.8 MPN/100mL, respectively. Sanitary conditions of the current designated area in Hansan Geojeman meets the required standards of the Fisheries Product Quality Control and National Shellfish Sanitation Program (NSSP, USA) criteria for the approved area. Also, the sanitary status of the shellfish harvested from the designated area met the Korean Shellfish Sanitation Program (KSSP) fecal coliform criterion (<230 MPN/100g). And the human pathogen such as Salmonella spp. and Shigella spp. were not detected from the examined shellfish samples.

• Fisheries and Aquatic Sciences
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• 제19권4호
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• pp.17.1-17.9
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• 2016

The seasonal variation of fecal coliforms (FCs) and physicochemical factors was determined in seawaters of the Hansan-Geojeman area, including a designated area for oyster, and in inland pollution sources of its drainage basin. The mean daily loads of FCs in inland pollution sources ranged from $1.2{\times}10^9$ to $3.1{\times}10^{11}$ most probable number (MPN)/day; however, the pollutants could not be reached at the designated area. FC concentrations of seawaters were closely related to season, rainfall, and inland contaminants, however, within the regulation limit of various countries for shellfish. The highest concentrations for chemical oxygen demand (COD) and $chlorophyll-{\alpha}$ in seawaters were shown in the surface layer during August with high rainfall, whereas the lowest for dissolved oxygen (DO) in the bottom layer of the same month. Therefore, it indicates that the concentrations of FC, COD, DO, and $chlorophyll-{\alpha}$ of seawaters were closely related to season and rainfall.

• 한국수산과학회지
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• 제51권1호
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• pp.1-7
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• 2018

We investigated patterns of antimicrobial resistance in Escherichia coli isolated from the water discharged from inland pollution sources in the Hansan-Geojeman and Jaranman-Saryangdo areas of Korea. A total of 217 strains of E. coli were isolated from 23 point-sources. These strains were tested for their susceptibility to 16 antimicrobial agents used in Korea for medical or veterinary therapy. The highest level of antibiotic resistance among the isolated strains was to tetracycline 10.6%, followed by ampicillin (3.2%), nalidixic acid (2.8%), rifampin (1.8%), trimethoprim (1.8%), trimethoprim/sulfamethoxazole (1.8%), chloramphenicol (1.4%), streptomycin (1.4%), cephalothin (0.5%) and gentamicin (0.5%). Resistance to at least one antimicrobial agent was present in 17.1% of the E. coli isolates. Only four of the isolated strains of E. coli showed multiple antibiotic resistance, which is defined as resistance to more than four antibiotics.

• 한국식품위생안전성학회지
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• 제33권5호
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• pp.404-411
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• 2018

본 연구는 2013년부터 2017년까지 경남 한산 거제만 해역에서 생산되는 패류에 대한 위생지표세균, 마비성 패류독소, 설사성 패류독소를 분석하여 세균학적 독물학적 안전성을 평가하였다. 굴 시료 404점에 대한 분변계대장균은 < 18~330 MPN/100 g의 범위를 나타내었으나, 대장균 230 E. coli MPN/100 g을 초과한 시료는 없었다. 굴 수확시기 동안 분석한 대장균의 기하학적 평균치는 24.3 MPN/100 g으로 매우 낮게 나타났다. 한산 거제만해역에서 생산되는 굴의 세균학적 안전성을 평가한 결과, 식품위생법의 생식용 굴에 대한 위생기준을 만족하였고, EU의 패류생산해역 A등급 기준에 부합하였다. 한산 거제만해역의 독물학적 평가를 위해 굴 532개 시료와 패류독소 지표종인 지중해담치 268개 시료에 대한 분석을 실시하였다. 마비성패류독소는 2013년 4월에 지중해담치 3개 시료에서 1.20~2.29 mg/kg 범위로 기준을 초과하여 검출되었으나, 굴시료에서는 전혀 검출되지 않았다. 총 120개 시료에서 설사성패류독소를 분석하였으나, 정량한계 이하로 매우 낮게 나타났다. 독물학적 안전성 평가결과, 굴 시료에서는 마비성 및 설사성패류독소가 전혀 검출되지 않았으나, 지표종인 지중해담치에서는 마비성패류독소 기준치를 초과한 것으로 나타나 지속적인 모니터링과 안전관리가 요구되었다.