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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.23, no.3, 2005³â, pp.304-314
´ëûȣÀÇ ³²Á¶¼¼±Õ ¼öÈ­ ¹ß´Þ Ư¼º
( Developmental Characteristic of Cyanobacterial Bloom in Lake Daecheong )
¹ÚÁ¾±Ù; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø ±¹Á¦¼öµ¾¹°Á¾Çհ˻缾ÅÍ;
 
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´ëûȣ ³²Á¶¼¼±Õ ¼öÈ­ ±âÀÛ¿¡ ´ëÇÑ ÀÌÇØ¸¦ µ½°íÀÚ, 1997³âºÎÅÍ 2002³â±îÁö (2000³â Á¦¿Ü)ÀÇ Á¶»ç ÀڷḦ ¹ÙÅÁÀ¸·Î ³²Á¶¼¼±Õ ±ºÁý Ư¼ºÀ» ÇØ¼®ÇÏ°í ¼öÈ­ ¹ß´Þ ´Ü°è¸¦ 3´Ü°è·Î ±¸ºÐÇÏ¿© ȯ°æ¿äÀΰúÀÇ °ü·Ã¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. ³²Á¶¼¼±Õ ¼öÈ­ÀÇ ½ÃÀÛÀº 6¿ù ÇϼøºÎÅÍ ½ÃÀÛÇϸç, °­°ú È£¼ÒÀÇ Áß°£ ¼ºÇâÀ» °¡Áø Á¤Á¡ 1ºÎÅÍ ¹ß»ýÇÏ¿´´Ù. ´ëûȣÀÇ ¼öÈ­ ¹ß»ý ±â°£Àº ´ïÃà ¾Õ ÁöÁ¡ÀÎ Á¤Á¡ 4¸¦ ±âÁØÀ¸·Î ÇÏ´Â °æ¿ì, ¾à $60~70$ÀÏÀ̾úÀ¸³ª, 1999³âÀÇ °æ¿ì´Â 7¿ù 19ÀϺÎÅÍ 11ÀÏ·Î ÀÌ·ÊÀûÀÎ Çö»óÀ̾ú´Ù. Microcystis aeruginosaÀº 6¿ù¿¡ ÃâÇöÇϱ⠽ÃÀÛÇÏ¿© 1998³â°ú 2002³âÀº 8¿ù ¸»¿¡¼­ 9¿ù ÃÊ, 1999³â°ú 2001³âÀº 7¿ù ¸»¿¡ ÀýÁ¤À» ÀÌ·ç¾ú´Ù. M. aeruginosaÀÇ ÇöÁ¸·®ÀÌ Ã³À½ Áõ°¡ÇÏ´Â ½Ã±â´Â 1998³âÀº 6¿ù 22ÀÏ, 1999³âÀº 6¿ù 28ÀÏ,2001³âÀº 7¿ù 4ÀÏ ±×¸®°í 2002³âÀº 6¿ù 25ÀÏ·Î ¸ðµÎ Ç¥Ãþ ¼ö¿ÂÀÌ $25^{circ}C$¸¦ ³Ñ´Â ½Ã±â¿´´Ù. M. aeruginosaÀÇ ±¸¼ººñ´Â ½Ä¹°Çöûũſ ÇöÁ¸·®¿¡ ´ëÇØ¼­´Â $68.1%,$ ³²Á¶¼¼±Õ¿¡ ´ëÇØ¼­´Â $74.2%$, Microcystis¼Ó¿¡ ´ëÇØ¼­´Â $88.8%$À̾ú´Ù. M. aeruginosaÀÇ ¿¬µµº° ³²Á¶¼¼±Õ ´ëºñ ±¸¼ººñ´Â 1998³â $30.3%,$ 1999³â $34.6%,$ 2001³â $94.4%,$ 2002³â $42.9%$À̾ú´Ù. 1998³â Anabaenu spp.´Â 4¿ùºÎÅÍ ÃâÇöÇϱ⠽ÃÀÛÇÏ¿© 8¿ù ÇϼøºÎÅÍ 9¿ù Áß¼ø±îÁö Á¤Á¡¿¡ µû¶ó $1.0{ imes}10^4;cells;mL^{-1}$ ÀÌ»óÀ¸·Î ºÐ¼®µÇ¾ú´Ù. Anabaena¼ÓÀº Áغñ±â¿¡ ³²Á¶¼¼±Õ ¼öÈ­ ÃßÀÌ¿¡ ÇÑ ÃàÀ» ´ã´çÇϰí ÀÖ¾ú´Ù. ¼Ò¸ê±â¿¡¼­´Â Anabaena spp., Oscillatorin spp., Aphanizomenon flos-aquae°¡ M. aeruginosaÀÇ ¼Ò¸êÀ» ´ë½ÅÇÏ¿© ÇöÁ¸·®ÀÌ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ³²Á¶¼¼±Õ ¼öÈ­¿¡ ¹ÌÄ¡´Â °­¿ìÀÇ ¿µÇâÀº ½Ã±âº°·Î ´Þ¶ó, Áغñ±âÀÇ °­¿ì´Â ³²Á¶¼¼±Õ ¼ºÀåÀ» µ½°í, ¼Ò¸ê±âÀÇ °­¿ì´Â ³²Á¶¼¼±ÕÀÇ ¼Ò¸êÀ» °¡¼ÓÈ­ÇÏ´Â °ÍÀ¸·Î ÇØ¼®µÇ¾ú´Ù. ¼öÈ­±â¿¡´Â °­¿ìÀÇ ¾çÀÌ ¸¹À» °æ¿ì¿¡´Â ¼öÈ­ ¹ß´ÞÀ» ÀúÇØÇÏ¿´À¸³ª, ÀûÀ» °æ¿ì¿¡´Â ±× ¿µÇâ·ÂÀÌ ³·¾Ò´Ù.
The occurrence of cyanobacterial bloom in Korean lakes of the summer is generalized. The characteristic of cyanobacterial community was explored. And the developmental stage of cyanobacterial bloom was divided into three phases, 'preparatory phase', 'bloom phase' and 'extinction phase' Cyanobacterial bloom started during the end of June at site 1, transition Bone of Lake Daecheong. The period of water bloom in normal year was about 60~70 days at site 4, lacustrine Bone, but it was unusually 11 days from July 19 in 1999. M. aerugilnosa first occurred in June, had a peak of standing crop curve from the end of August to the beginning of September in 1998 and 2002 and the end of July in 1999 and 2001. The standing crop of M. aeruginosa occupied $68.1%$ of phytoplankton, $74.2%$ of cyanobacteria and $88.8%$ of genus Microcystis, Anabaena spp. first occurred in April, was above 10,000 cells $mL^{-1}$ from the end of August to about the middle of September in 1998. The effect of rainfalls on cyanobacterial bloom was different according to the phases. The rainfalls of preparatory phase assist the growth of cyanobacteria, but accelerate the decrease of cyanobacteria in extinction phase. In bloom phase, the heavy rainfalls reduce the development of the bloom, while the slight ones display only a little effects.
 
Ű¿öµå
Lake Daecheong;cyanobacteria;Microcystis;Anabaena;water bloom;preparatory phase;bloom phase;extinction phase;growth rate;
 
ȯ°æ»ý¹° / v.23, no.3, 2005³â, pp.304-314
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504840632506)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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