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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.38, no.2, 2005³â, pp.261-270
»ìÁ¶¼¼±Õ Àû¿ëÀÌ ½Ä¹°Çöûũſ ±ºÁý°ú Á¶·ùµ¶¼Ò ºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effects of Biological Control Agent Algicidal Bacterium on the Phytoplankton Community and Microcystin-LR Contents in a Mesocosm Experiment )
Á¤½Â¿ø;¼­Á¾±Ù;¼­¹Ì¿¬;ÇѸí¼ö;±è¹éÈ£; ÇѾç´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;ÇѾç´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;¼­¿ï½Ã º¸°Çȯ°æ¿¬±¸¿ø ȯ°æ¿¬±¸°³¹ßÆÀ;ÇѾç´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;ÇѾç´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;
 
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¸Å³â ³²Á¶ Microcystis aeruginosa°¡ ´ë¹ß»ýÇÏ´Â Àΰø¿¬¸ø¿¡ 100 L mesocosm¸¦ ¼³Ä¡ÇÏ°í »ý¹°Á¦Àç (Xantobacter autotrophycus + casitone)¸¦ È¥ÇÕ Ã³¸®ÇÑ °á°ú, ȯ°æ¿äÀÎÀÇ º¯È­(pH, DO°¨¼Ò, ¿µ¾ç¿° Áõ°¡)¿Í ÇÔ²² ½Ä¹°Çöûũſ ±ºÁýÀÇ ¶Ñ·ÇÇÑ º¯È­°¡ °üÂûµÇ¾ú´Ù. »ý¹°Á¦Àç ó¸®ÈÄ M. aeruginosa´Â Á¡Â÷ °¨¼ÒÇÏ¿© 8ÀÏ¿¡´Â °üÂûµÇÁö ¾Ê¾Ò°í, ½Ä¹°Çöûũſ ÃÑ ¹ÐµµÀÇ ¾à 60% ÀÌ»óÀÌ °¨¼ÒÇÏ¿´´Ù. ¶ÇÇÑ ³²Á¶ÀÇ ¼Ò¸ê°ú ÇÔ²² Á¶Ã¼¼º µ¶¼ÒÀÇ °¨¼Ò ¹× ¿ëÁ¸¼º µ¶¼Ò°¡ Áõ°¡ÇÏ¿´À¸¸ç, ¶Ñ·ÇÇÑ ¿µ¾ç¹°ÁúÀÇ Áõ°¡¿¡µµ ºÒ°¡Çϰí ÇöÁ¸·®ÀÌ Áõ°¡ÇÏ´Â Á¾Àº ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ÀÌ·¯ÇÑ ¿µ¾ç¹°ÁúÀ̳ª ¿ëÁ¸¼º µ¶¼ÒÀÇ Áõ°¡´Â »ý¹°Á¦À縦 ÀÌ¿ëÇÑ ³²Á¶·ù Á¦¾î°¡ »ó¼ö¿ø Àú¼öÁö¿Í °°Àº Àå¼Òº¸´Ù´Â ±Ô¸ð°¡ ÀÛÀº ¿¬¸øÀ̳ª Àú¼öÁö µî¿¡ ÀûÇÕÇϸç, »ý¹°Á¦Àç ó¸® ÀÌÈÄ ¼öÁúº¯È­¿¡ ´ëÇÑ Àû±ØÀûÀÎ ¼öÁú°ü¸® ´ëÃ¥ÀÌ ¸¶·ÃµÇ¾î¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
Biological control agents (BCA; algicidal bacterium Xantobacter autotrophycus) plus casitone media, strongly changed physicochemical variables, standing crops of phytoplankton and microcystin-LR phytoplankton in 100-L mesocosm constructed in a small hexagonal pond (3.5 m ${ imes}$ 5 m). No M. aeruginosa showed by 8 days, and 60% of total standing crops of phytoplanktons were decreased by the BCA treatment. BCA treatment also induced a strong decline of cellular extracted microcystin-LR (MCLR) and a remarkable increase of dissolved MCLR with the decrement in standing crops of cyanobacteria. In addition, BCA strongly increased all nutrients, but new outbreak of phytoplanktons hardly showed in the experimental mesocosm. The field application of BCA to controling the cyanobacterial bloom in large lakes and reservoirs is not relevant due to high concentration of nutrients and toxins. Thus, a further study is needed to diminish the adverse effects after BCA treatment for water quality preservation.
 
Ű¿öµå
biological control agents;algicidal bacteria;Microcystis aeruginosa;mesocosm;phytoplankton community;Microcystin-LR;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.38, no.2, 2005³â, pp.261-270
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200518317184555)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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