• 한국환경과학회지
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• 제26권6호
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• pp.691-710
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• 2017

This study was performed to investigate the geochemical and benthic environment of three shellfish farms in Suncheon Bay during the period of September 2014 ~ April 2015. Three sampling stations were selected; St.1 is the shellfish farm of razor clam near Jangsan area. St.2 is the shellfish farm of small ark shell near Hwapo area and St.3 is the shellfish farm of razor clam near Yongdu area. Razor clam was the dominant species at St.1, small ark shell and granulated ark shell were dominant at St.2 and St.3, respectively. Granulated ark shell inhabited St.3, although it is not cultured at that station. This station's exposure to air during the ebb tide and sediment composition likely provides the appropriate habitat for granulated ark shell species. Analysis of the number of different species showed that 8 benthos species were found to be distributed at St.1, 18 species at St.2, and 13 species at St.3. Among three stations, the highest Ignition Loss (IL), Chemical Oxygen Demand (COD) and Acid Volatile Sulfide (AVS) values were obtained from the sediment at St.2. The analysis of pore water from St.2 also showed the highest values of Total Organic Carbon (TOC), ammonia ($NH_4^+$), Dissolved Inorganic Nitrogen (DIN) and phosphate ($PO_4^{3-}$). These results are related to the fact that species dominance and richness is the highest in St.2.

• 한국식품과학회지
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• 제34권6호
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• pp.1130-1133
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• 2002

Domoic acid는 기억 상실성 패독으로 알려진 신경독소로서 위장관에서 흡수되어 중추신경계에 손상을 주어 기억 상실을 야기한다고 알려져 있다. 미국 FDA와 캐나다 보건 후생성은 가식부 g당 $20\;{\mu}g$으로 조개류의 domoic acid 함량을 법적으로 규제하고 있다. 돌말류인 Nitzschia pungens f. multiseries에 의하여 생성된 domoic acid는 조개에 섭식되면서 축적이 일어난다. Nitzschia pungens f. multiseries는 우리나라 남부 해안에 5월경 발생하는 식물성 플랑크론이다. 조개의 섭취량이 높은 한국인의 domoic acid에 대한 노출 정도를 평가하기 위하여 복족류인 삐뿔 고동과 이매패류인 굴, 바지락, 백합, 가무락, 동죽, 피조개, 홍합, 피조개, 가리막조개, 비단조개, 고막을 1999년 5월, 6월, 7월, 8월, 10월, 12월에 수집하였다. Domoic acid의 미국 및 캐나다의 법적 규제치인 $20\;{\mu}g/g$에 상응하는 농도를 기준으로 조개 시료에 $80\;{\mu}g$을 첨가하고 추출한 결과 회수율은 $95.80%({\pm}1.09)$이었으며 검출 한계는 50 ng/g이었다. 수집된 68개 모든 시료에서 검출되지는 않았지만 한국인이 전혀 노출되지 않았다고 단정지을 수는 없다. 앞으로 우리나라에서도 기억 상실을 나타내는 식중독 사건에 대한 연구가 지속되어야 기억 상실성 패류 독소에 의한 식중독을 미연에 방지할 수 있다고 사료된다.

• 한국패류학회지
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• 제32권4호
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• pp.255-261
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• 2016

The selected seven oligonucleotides primers BION-32, BION-33, BION-35, BION-38, BION-40, BION-46 and BION-58 generated the shared loci, specific loci, unique shared loci to each population and shared loci by the three T. granosa populations in Beolgyo, a Chinese site and Wonsan, respectively. The bandsharing value between individuals' no. 03 and no. 04 was 0.816, which was the highest value identified within the Beolgyo population. The primer BION-35 generated the most loci (a total of 70), with an average of 10.0 in the Wonsan population. On average, seven oligonucleotides primers generated 16.1 specific loci in the Beolgyo population, 22.3 in the Chinese population and 39.3 in the Wonsan population. 126 unique shared loci to each population, with an average of 18 per primer, were observed in the Beolgyo population, 63 loci, with an average of 9 per primer, were observed in the Chinese population, and 49 loci, with an average of 7 per primer, and were observed in the Wonsan population. The oligonucleotides primer BION-32 generated 14 unique loci to each population, which were identifying each population in the Beolgyo population. Interestingly, every primer had not distinguished the shared loci by the three populations, major and/or minor fragments of sizes, which were identical in almost all of the samples. As regards average bandsharing value (BS) results, individuals from Beolgyo population ($0.717{\pm}0.057$) exhibited higher BS values than did those from Wonsan population ($0.552{\pm}0.104$) (P < 0.05). The dendrogram resulted from truthful seven oligonucleotides primers, representing three genetic clusters comprising group I (BEOLGYO 01, 02, 03, 04, 05, 06 and 07), group II (CHINESE 08, 09, 10, 11, 12, 13 and 14) and group III (WONSAN 15, 16, 17, 18, 19, 20 and 21). In three T. granosa populations, the longest genetic distance (0.874) displaying significant molecular difference was also between individual no. 02 within the Beolgyo population and individual no. 12 within the Chinese population. Relatively, individuals of the CHINESE population were fairly closely related to those of the WONSAN population.