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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.35, no.2, 2002³â, pp.92-102
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±¹³» ´ã¼ö»ê Á¶°³ÀÇ ¼·½ÄȰµ¿ÀÌ È£¼ö ¼öÁú¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Comparison of Filtering Abilities of Korean Freshwater Bivalves and Their Filtering Effects on Water Quality ) |
| ±èÈ£¼·;ÃÖ±¤Çö;¹ÚÁ¤È¯;½ÅÀç±â;Ȳ¼øÁø; °Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;
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| º» ¿¬±¸´Â ´ã¼ö»ê Á¶°³ Á¾°£ÀÇ ¿©°ú´É·Â°ú ½ÇÇèÀûÀ¸·Î Á¶¼ºµÈ Àΰø¿¬¸ø¿¡¼ Á¶°³ÀÇ ¿©°ú¼·½ÄÀÌ ¼öÁú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϱâ À§ÇØ ÀÌ·ç¾îÁ³´Ù. ½Ç³» ½ÇÇè°ú Àΰø¿¬¸ø¿¡¼ÀÇ ¼·½Ä½ÇÇè ¸ðµÎ¿¡¼ Á¶°³¿¡ ÀÇÇÑ ¿±·Ï¼Ò, ÃÑÀÎ, ºÎÀ¯¹°Áú°ú °°Àº ÀÔÀÚ¼º ¹°ÁúÀÇ °¨¼Ò°¡ °üÂûµÇ¾ú´Ù. 600°³Ã¼ÀÇ Á¶°³°¡ ÅõÀÔµÈ Ã³¸®±¸¿¡¼, ¿±·Ï¼Ò ³óµµ¿Í ¼ø 1Â÷ »ý»ê·ÂÀº $87.3{pm}4.5;{mu}g/L$¿Í $106.3{pm}8.8;{mu}gC;L^{-1};hr^{-1}$¿¡¼ ´ëÁ¶±¸¿Í °ÅÀÇ µ¿ÀÏÇÑ ¼öÁØÀÎ $25.0{pm}0.5;{mu}g/L$¿Í $15.6{pm}13.3;{mu}gC;L^{-1};hr^{-1}$±îÁö °¨¼ÒÇÏ¿´´Ù(P<0.05, n = 6, ANOVA). ¿±·Ï¼Ò ³óµµÀÇ °¨¼Ò¿Í µ¿½Ã¿¡, Åõ¸íµµ´Â 0.48m¿¡¼ 1.2m±îÁö Çâ»óµÇ¾ú°í, ºÎÀ¯¹°Áú°úÃÑÀÎ ³óµµ´Â °¢°¢ $22.0{pm}1.0;mg/L$¿¡¼ $7.5{pm}0.5;mg/L$, $133{pm}0.8;{mu}g/L$¿¡¼ $7.5{pm}0.0;{mu}g/L$±îÁö °¨¼ÒÇÏ¿´´Ù (P<<0.001,$r^2$>0.71,n = 11).ºñ·Ï 󸮱¸¿¡¼ SRP³óµµÀÇ ¾à°£ÀÇ °¨¼Ò¿Í ¹«±âÁú¼Ò($NH_3-N$, $NO_2-N$)ÀÇ Áõ°¡°¡ °üÂûµÇ¾ú´Ù ÇÏ´õ¶óµµ, ´ëÁ¶±¸ÀÇ ³óµµ¿Í ºñ±³ÇÒ ¶§ À¯ÀÇÀûÀÎÂ÷ÀÌ´Â ¾ø¾ú´Ù. ½Ä¹°Çöûũſ¿¡ ´ëÇÑ ¿©°úÀ²°ú ¼·½Ä°úÁ¤ Áß¿¡ feces¿Í pseudofeces¿Í °°Àº ÇüÅ·ÎÀÇ ¿µ¾ç¿° ¹èÃâÀ²À» °í·ÁÇÒ ¶§, Corbicula leana°¡ °¡Àå È¿°úÀûÀÎ ¿©°ú¼·½ÄÀÚ¿´´Ù. ÀÌ·¯ÇÑ °á°úµéÀº Corbicula°¡ ÀÔÀÚ¼º¹°ÁúÀ» Á¶ÀýÇÔ¿¡ ÀÖ¾î Áß¿äÇÑ ¿ªÇÒÀ» ¼öÇàÇϸç, Á¶·ù°¡ ´ë·® ¹ß»ýÇϴ ȣ¼ÒÀÇ ¼öÁú°ü¸®¸¦ À§ÇØ »ý¹°ÇÐÀû ¼öÁúÁ¶ÀýÀڷμ Àû¿ëÇÒ ¼ö ÀÖÀ½À» Á¦½ÃÇÑ´Ù. |
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| This study was conducted to compare filtering abilities of three species of freshwater mussels (Cobicula fluminea, Corbicula leana and Unio douglasiae) and to evaluate their filter feeding effects on water quality change in experimental enclosure systems. Mussel feeding in both laboratory and enclosure resulted in decrease of particulate material, such as chlorophyll, total P, SS. In the treatment with 600 individuals of mussels, chllorophyll concentration and net primary productivity decreased from $87.3{pm}4.5;{mu}g/L$ and $106.3{pm}8.8;{mu}gC;L^{-1};hr^{-1}$ to nearly the same level as the mussel-free enclosure ($25.0{pm}0.5;{mu}g/L$ and $15.6{pm}13.3;{mu}gC;L^{-1};hr^{-1}$, respectively)(P< 0.05, n = 6, ANOVA). In concert with the decrease of chlorophyll concentration, not only was the transparency enhanced from 0.48 m to 1.2m but also the suspended solids and total phosphorus decreased from $22.0{pm}1.0;mg/L$ to $7.5{pm}0.5;mg/L$ and $133{pm}0.8;{mu}g/L$ to $70{pm}0.0;{mu}g/L$, respectively (P<0.001, $r^2$>0.71, n = 11). Although slight decrease of SRP concentration and the increase of inorganic nitrogen ($NH_3-N$ and $NO_2-N$) were observed in the mussel addition enclosure, there was no statistical difference between two enclosures. Based on the filtering rate on phytoplankton and nutrient release rate in forms of feces and pseudofeces, Corbicula leana appeared to be the most efficient filter-feeder among three mussel species. These results inidicate that Cobicula play an important role in controlling particulate sestons and thus it could be applied as a biocontroler for the water quality management in lakes and reservoirs with algal blooms. |
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| Ű¿öµå |
| Mussel;Filtering ability;Enclosure;Biocontrol;Water quality management; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.35, no.2, 2002³â, pp.92-102
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200218317179491)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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