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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.spc, 2008³â, pp.86-92
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½ÇÇèÀû »ý¹°Á¶Àý ±â¹ýÀ» ÀÌ¿ëÇÑ ¿±·Ï¼Ò ¹× ³²Á¶·ù Á¦°Å È¿°ú
( Removal Effects of Chlorophyll-a and Cyanobacteria Using Laboratory-scale Biomanipulation Tests ) |
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| º» ¿¬±¸´Â ÂüºØ¾î¿Í ÁÙ»õ¿ìÀÇ ¼·½Ä¿¡ ÀÇÇÑ Á¶·ùÁ¦¾î È¿°ú¸¦ Æò°¡ÇÏ´Â °ÍÀ¸·Î ÀÚ¿¬°³Ã¼±ºÀÇ Á¶·ù¸¦ äÁýÇÏ¿© Á¶·ù(Chl-${alpha}$) Ãʱ⠳󵵸¦ $95{sim}100mg;L^{-1}$·Î °íÁ¤ÇÏ¿´À¸¸ç, °¢°¢ÀÇ ½ÇÇè¿ë ¼öÁ¶¿¡ 10LÀÇ ÀÚ¿¬¼ö¿Í ´ë»ó»ý¹°À» Åõ¿©ÇÏ¿´´Ù. ÂüºØ¾î¿¡ ÀÇÇÑ Á¶·ùÁ¦¾î ½ÇÇè¿¡¼´Â °³Ã¼¼ö º¯ÀÌ¿¡ µû¸¥ ¼·½Ä´É·ÂÀ» Æò°¡Çϱâ À§ÇØ ´ëÁ¶±º(Control) 1°³ ¹× 󸮱º 3°³ [T1(25°³Ã¼)), T2(50°³Ã¼), T3(100°³Ã¼)]¸¦ ºñ±³ Æò°¡ÇÏ¿´°í, ÁÙ»õ¿ì¿¡ ÀÇÇÑ Á¶·ùÁ¦¾î ½ÇÇèÀº »ý¹°À» Åõ¿©ÇÏÁö ¾ÊÀº ´ëÁ¶±º 1°³, T4(25°³Ã¼)¹× T5(50°³Ã¼)ÀÇ 2°³ 󸮱ºÀ» ÀÌ¿ëÇÏ¿´´Ù. º» »ý¹°Á¶Àý ½ÇÇè±â°£ µ¿¾È ¿ëÁ¸»ê¼Ò´Â $8.2{sim}9.7mg;L^{-1}$, ¼ö¼Ò À̿³󵵴 $7.2{sim}8.8$·Î ³ªÅ¸³µ´Ù. ÂüºØ¾î 󸮱ºÀÇ °³Ã¼¼ö º¯ÀÌ¿¡ µû¸¥ T1, T2 ¹× T3¿¡¼ Chl-${alpha}$ Á¦°ÅÈ¿°ú´Â °¢°¢ -58, -56, -61%·Î ³ªÅ¸³µÀ¸¸ç, ³²Á¶·ùÀÇ ÃÖÁ¾ Á¦°ÅÈ¿°ú´Â -0.5, -12, -48%·Î ³ªÅ¸³ª ¾î·ùÀÇ ºÐ´¢, ºÐºñ¹°¿¡ ÀÇÇØ Á¶·ù Á¦¾îÈ¿°ú¿¡ ¿ÀÈ÷·Á ¾Ç¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÑÆí ÁÙ»õ¿ì¿¡¼ T4°ú T5ÀÇ Ã³¸®±º¿¡¼ ÃÖÁ¾ Chl-${alpha}$Á¦°Å È¿°ú´Â °¢°¢ 33,22%·Î ³ªÅ¸³µÀ¸¸ç, ÁÙ»õ¿ì ÇÑ °³Ã¼´ç ¿±·Ï¼Ò Á¦°Å´ÉÀº T4 ¹× T5¿¡¼ °¢°¢ 1.3¹× $0.4{mu}g;L^{-1}$·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, ÁÙ»õ¿ìÀÇ T4 ¹× T5¿¡¼ ³²Á¶·ù ÃÖÁ¾ Á¦°Å È¿°ú´Â 85,84%·Î ³ªÅ¸³ª ÁÙ»õ¿ì ÇѰ³Ã¼´ç ³²Á¶·ù¸¦ Æò±Õ $2.0{ imes}10^2$ ¹× $1.1{ imes}10^2cells;mL^{-1}$¸¦ ¼·½ÄÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³ª Chl-${alpha}$º¸´Ù ³²Á¶·ù Á¦°Å¿¡ º¸´Ù ´õ Ź¿ùÇÑ È¿°ú¸¦ º¸¿´´Ù. º» »ý¹°Á¶Àý¿¡ ÀÇÇÑ ¿¹ºñ ½ÇÇè °á°ú¿¡ µû¸£¸é, ÁÙ»õ¿ì¿¡ ÀÇÇÑ Á¶·ùÁ¦°Å È¿°ú°¡ Ź¿ùÇÏ¿© ÇâÈÄ ¸ÞÁ¶ÄÚÁò ÇöÀå Àû¿ë¿¡ ÀÇÇÑ ´Ü°èÀû Æò°¡°¡ ÇÊ¿äÇÑ °ÍÀ¸·Î »ç·áµÇ¾ú´Ù. |
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| This study was conducted to determine removal effect on phytoplankton (chlorophyll-${alpha}$ as whole algae) and cyanobacteria by a fish Pseudorasbora parva and macroinvertebrate Palaemon paucidens in September 2006. Three treatments with 25 (T1), 50 (T2) and 100 (T3) individuals along with control (C1, no input fish), and two treatments with 25 (T4) and 50 (T5) individuals along with control (C1) were made for fish and macroinvertebrate, respectively. The initial concentrations of chlorophyll-${alpha}$ $(Chl_i)$ in each 10L test tank were set up for the levels of $95{sim}100{mu}g;L^{-1}$ and the daily values were monitored in the test tank during 7 days. In the lab tests, P. parva did not show Chl-${alpha}$ removal effect; the removal rate of Chl-${alpha}$ for P. parva was -58% in T1, -56% in T2, and 61% in T3 during the test period. In contrast, P. paucidens. in the treatments of T4 and T5 removed the phytoplankton effectively and the removal effect were appeared to be 33% and 22%, respectively. Also, P. paucidens showed high feeding efficiency in the removal of cyanobacteria. The levels of cyanobacteria were greatly lowed from 6,048 to 927 cells $mL^{-1}$ in T4 and from 6,539 to 1,053 cells $mL^{-1}$ in T5, resulting in 85% and 84% in the removal effect, respectively. Our results for biomanipulation tests suggest that P. paucidens may be used as a potential candidate organism for algae control in spite of the preliminary results by laboratory tests. |
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| Ű¿öµå |
| biomanipulation;removal effect;cyanobacteria;chlorophyll-${alpha}$;agricultural reservoir; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.spc, 2008³â, pp.86-92
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814364034004)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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