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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.38, no.3, 2005³â, pp.313-321
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¿ëÁ¸¼º µ¶¼Ò microcystin-LRÀÌ ½Ä¹°Çöûũſ ±ºÁý¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effects of Dissolved Microcystin-LR on the Different Phytoplankton Communities in a Microcosm Scale ) |
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| ³²Á¶ ´ë¹ß»ýÀ» Á¦¾îÇϱâ À§ÇÑ »ý¹°Á¦ÀçÀÇ Ã³¸®°¡ ¼öÁß »ýŰ迡 ¹ÌÄ¡´Â ¿µÇâÀ» ÆÄ¾ÇÇÏ´Â ¿¬±¸ÀÇ ÀÏȯÀ¸·Î, »ìÁ¶¼¼±Õ ó¸®ÀÌÈÄ Áõ°¡µÈ ¿ëÁ¸¼º microcystin-LR (MCLR)ÀÌ ½Ä¹°Çöûũſ ±ºÁýÀÇ Á¾Á¶¼º ¹× ÇöÁ¸·®, ±×¸®°í Á¶·ùµ¶¼Ò ºÐÆ÷¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ÁÖ´Â Áö¸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿©, MCLR standard¸¦ ¼º°ÝÀÌ ´Ù¸¥ 3°¡Áö ÇöÀå¼ö¸¦ ³ÖÀº ½ÃÇè°ü¿¡ ´ëÁ¶±º, ÇöÀå ³óµµÀÇ 10¹è, 100¹è ¾¿ ó¸®ÇÏ°í ½Ä¹°Çöûũſ »ý¹°·®, ¿±·Ï¼Ò a,ȯ°æ¿äÀÎ, µ¶¼Ò·® µîÀÇ º¯È¸¦ °¢°¢ Á¶»çÇÏ¿´´Ù. ±ÔÁ¶ Stephanodiscus hantzschii°¡ ¾ÐµµÀûÀ¸·Î ¿ìÁ¡ÇÏ¿´´ø õȣ´ë±³¿¡¼´Â µ¶¼Òó¸®ÀÌÈÄ ÇöÁ¸·®Àº Á¡Â÷ °¨¼ÒÇÏ¿´À¸¸ç Á¾Á¶¼ºÀº Å©°Ô º¯ÇÏÁö ¾Ê¾ÒÀ¸¸ç, ±ÔÁ¶ Aluacoseira¿Í Ȳ»öÆí¸ðÁ¶ DinobryonÀÌ ¿ìÁ¡ÇÑ ±æµ¿»ýŰø¿ø¿¡¼´Â ÇöÁ¸·®ÀÌ Å©°Ô °¨¼ÒÇÑ ¹Ý¸é, °í³óµµ 󸮿¡¼´Â ³ìÁ¶ Scenedesmus°¡ Å©°Ô ¹ß´ÞÇÏ¿´´Ù. ³²Á¶·ù¿Í ¿ëÁ¸¼º MCLR ³óµµ°¡ °¡Àå ³ô¾Ò´ø ¾ç¼ö¸® À°°¢Áö¿¡¼´Â ³²Á¶ M. aeruginosa °¨¼Ò ¹× ÃÑ ÇöÁ¸·®ÀÇ °¨¼Ò°¡ ÀϾ´Ù. ÀÌ»óÀÇ °á°ú´Â »ý¹°Á¦Àç ó¸®ÀÌÈÄ ³²Á¶ M. aeruginosa »ç¸ê¿¡ µû¸¥ ¿ëÁ¸¼º µ¶¼ÒÀÇ Áõ°¡°¡ ¼öÁß³» ½Ä¹°Çöûũſ ±ºÁýÀÇ Á¾Á¶¼º ¹× ÇöÁ¸·® º¯È¸¦ ´õ¿í ½ÉȽÃŰ´Â °ÍÀ¸·Î ¹àÇôÁ³´Ù. |
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| Based on the result that biological control agent (BCA) increased the dissolved microcystin-LR in a field experiment to control the cyanobacterial bloom (Kim etal., 2005), a laboratory experiment was used to evaluate the effects of dissolved microcystin-LR (MCLR) with different concentrations on abundance, dominance, diversity of phytoplankton community, concentration of chlorophyll a and microcystin concentration in replicated microcosms. The treatments in this laboratory experiment comprised different concentrations of T1 (natural MCLR concentration), T10 (ten times to natural MCLR concentration), and T100 (one hundred times to natural MCLR concentration). MCLR treatment of exclusively Stephanodiscus hantzschii-dominated community in Chonho bridge hardly changed in algal species, but abundance. In Kildong pond, Aulacoseira and Dinobryonrich community was replaced by green algae Scenedesmus-rich community especially in T100 experiment. However, in Yangsoori-Ryukgakji Pond having the highest concentration of initial MCLR, Microcystis aeruginosa was decreased in abundance. Therefore, the treatment of BCA to control M. aeruginosa severely changed the Phytoplankton community in term of algal species, abundance (chlorophyll a) and dissolved microcystin-LR via a high release of MCLR. |
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| Ű¿öµå |
| microcosm;microcystin-LR;Microcystis aeruginosa;phytoplankton community; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.38, no.3, 2005³â, pp.313-321
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200518317185009)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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