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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.2, 2008³â, pp.264-274
¿µÃµÈ£¿¡¼­ ³²Á¶·ù µ¶¼Ò(microcystins)ÀÇ °èÀýÀû º¯µ¿
( Seasonal Variations of Cyanobacterial Toxins (microcystins) in Yeongchun Reservoir )
À̰æ¶ô;Á¤¿øÈ­;±èÁ¾¹Î;±è¿µ»ý;ÃÖÈñÁø;±èÇѼø; °æºÏ´ëÇб³ »ý¹°Çаú;±¹¸³È¯°æ°úÇпø;±¹¸³È¯°æ°úÇпø;°æºÏ´ëÇб³ »ý¹°Çаú;±¹¸³È¯°æ°úÇпø;°æºÏ´ëÇб³ »ý¹°Çаú;
 
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¿µÃµÈ£¸¦ ´ë»óÀ¸·Î 2007³â 3¿ùºÎÅÍ 12¿ù±îÁö ³²Á¶·ù ¹ß»ýÇöȲ, ȯ°æ¿äÀÎ, ³²Á¶·ù µ¶¼ÒÀÎ microcystinsÀÇ »ý¼º ³óµµ¸¦ Á¶»ç ºÐ¼®ÇÏ¿´´Ù. HPLC ºÐ¼®¹æ¹ýÀ¸·Î ¿µÃµÈ£ÀÇ °èÀýº° microcystins ³óµµ¸¦ ºÐ¼®ÇÑ °á°ú, °¢ ¿äÀο¡ µû¶ó ¶Ñ·ÇÇÑ Áõ°¨ÆÐÅÏÀ» ³ªÅ¸³Â´Ù. °èÀýÀû ÀÎ ¿ìÁ¡Á¾ÀÌ Anabaena sp.¿¡¼­ M. aeruginosa·Î ¹Ù²î¸é¼­ microcystins »ý¼º·®ÀÌ ÇöÀúÇÏ°Ô Áõ°¡ÇÏ´Â Çö»óÀÌ °üÂûµÇ¾ú°í, ÁÖ¿ä ÃâÇöÁ¾ Áß M. aeruginosa ¹Ðµµ¿Í microcystins ³óµµ °£ÀÇ »ó°ü¼ºÀÌ °¡Àå ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, M. aeruginosa ±ÕÁÖµéÀÇ ³ôÀº µ¶¼Ò »ý¼ºÀ²À» °í·ÁÇÒ ¶§, M. aeruginosa°¡ ³²Á¶·ù µ¶¼ÒÀÎ microcystins »ý¼º¿¡ °¡Àå ±â¿©µµ°¡ ³ôÀº °ÍÀ¸·Î È®ÀεǾú´Ù. Microcystins¿Í ȯ°æ¿äÀÎµé °£ÀÇ »ó°ü¼º ºÐ¼®°á°ú, Á¶»çµÈ 6°³ Ç׸ñ(¼ö¿Â, pH, Àüµµµµ, ÃÑÀÎ, ÃÑÁú¼Ò, ¿ëÁ¸ ±Ô¼Ò) Áß ¼ö¿Â°ú´Â ¾à $20^{circ}C$ ÀÌ»óÀÇ ¼ö¿Â¹üÀ§¿¡¼­ ¿ªÀÇ »ó°ü¼ºÀÌ ÀÖ´Â °ÍÀ¸·Î È®ÀεǾú´Ù.
Seasonal variations of cyanobacterial toxins (microcystins) in Yeongehun reservoir were studied from March to December, 2007. High level of microcystins production was shown during the late autumn and winter seasons. Total microcystins concentration increased sharply when the dominant species changed from Anabaena sp. to Microcystis aeruginosa. Microcystins-RR and -YR were the main components of the microcystins, whereas microcystin-LR was detected in small quantities. Especially, large amounts of microcystin-LR were detected when standing crops of M. aeruginosa increased exponentially. Total microcystins concentration showed a negative correlation with water temperature. However, total microcystins were lowly correlated with other environmental factors except for water temperature. As a result, this study clearly demonstrated that M. aeruginosa was the main producer of microcystins in Yeongchun reservoir.
 
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microcystins;dominant species;Microcystis aeruginosa;Anabaena sp.;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.2, 2008³â, pp.264-274
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200827448607767)
¾ð¾î : Çѱ¹¾î
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