|
|
|
Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.3, 2001³â, pp.141-152
|
±¹³» È£¼Ò¿¡¼ autotrophic picoplanktonÀÇ ¹Ðµµ ¹× ½Ä¹°Çöûũſ »ý¹°·®¿¡ ´ëÇÑ ±â¿©µµ
( Abundance of Autotrophic Picoplankton and Their Contribution to Phytoplankton Biomass in Korean Lakes ) |
| ±è¹üö;Àü¸¸½Ä;Çã¿ì¸í;±èÈ£¼·;ÃÖ¿¬±Ô; °¿ø´ëÇб³ ȯ°æ°úÇаú;°¿ø´ëÇб³ ȯ°æ°úÇаú;»ïô´ëÇб³ ȯ°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª»ýŽýºÅÛ°øÇаú;°¿ø´ëÇб³ ȯ°æ°úÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| 1999³â ¿©¸§µ¿¾È µ¿ÇؾÈÀÇ 7°³ ¼®È£¿Í, ³»·úÀÇ 5°³ ÀΰøÈ£¸¦ ´ë»óÀ¸·Î autotrophic picoplankton (APP)ÀÇdzºÎµµ¿Í ÃÑ ½Ä¹°Çöûũſ »ý¹°·®¿¡ ´ëÇÑ ±â¿©µµ¸¦ Æò°¡ÇÏ¿´´Ù. ¼®È£¿¡¼´Â ºÎ¿µ¾çȰ¡ ½ÉÇÑ È£¼ö¿¡¼ ÁÖ·Î ³ªÅ¸³ª´Â phycocyanin-rich APP°¡ ¿ìÁ¡ÇÑ ¹Ý¸é ÀΰøÈ£¿¡¼´Â ÁÖ·Î phycoerythrin-rich APP°¡ ¿ìÁ¡ÇÏ¿´´Ù. µ¿ÇØ¾È ¼®È£¿¡¼ APPÀÇ ¼¼Æ÷¹Ðµµ¿Í »ý¹°·®Àº °¢°¢ $3.6{ imes}10^3{sim} 5.0{ imes}10^6;cells/ml$¿Í $1.0{sim}1,385.0;{mu}gC/L$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³Â°í ÀΰøÈ£¿¡¼´Â °¢°¢ $3.8{ imes}10^4{sim}3.6{ imes}10^5;cells/ml$¿Í $15.3{sim}128.2;{mu}gC/L$ÀÇ ¹üÀ§·Î µ¿Çؾȼ®È£¿¡¼ ´õ ³ôÀº APPÀÇ Ç³ºÎµµ¸¦ ³ªÅ¸³Â´Ù. ƯÈ÷ °æÆ÷È£¿¡¼´Â 3ȸÁ¶»ç ¸ðµÎ $10^6;cells/ml$ÀÌ»óÀÇ ³ôÀº ¼¼Æ÷¹Ðµµ¸¦ º¸¿´´Âµ¥ ÀÌ´Â ¼¼°èÀûÀ¸·Î º¸°íµÈ °¡Àå ³ôÀº ¹Ðµµ ¼öÁØÀÌ´Ù. ¼Ò¾çÈ£¿¡¼ APPÀÇ ¼öÁ÷ºÐÆ÷¸¦ Á¶»çÇÑ °á°ú ¼ö¿Â¾àÃþ¿¡¼ ÃÖ´ë ¼¼Æ÷¹Ðµµ¸¦ ³ªÅ¸³Â´Âµ¥ ÀÌ´Â APP°¡ ³·Àº ±¤µµ¿¡¼µµ ¼ºÀåÀÌ °¡´ÉÇÏ¸ç ½ÉÃþÀÇ ³ôÀº ¿µ¾ç¿°·ù¸¦ ÀÌ¿ëÇÒ ¼ö ÀÖ¾ú±â ¶§¹®À¸·Î »ç·áµÈ´Ù. APP¼¼Æ÷¹Ðµµ´ÂTN/TPºñ¿Í À½ÀÇ »ó°ü°ü°è,TP¿Í´Â ¾çÀÇ »ó°ü°ü°è¸¦ ³ªÅ¸³»¾î APPÀÇ Ç³ºÎµµ°¡ È£¼öÀÇ ºÎ¿µ¾çÈ¿Í ÇÔ²² Áõ°¡ÇÏ´Â °æÇâÀ» ³ªÅ¸³»¾ú´Ù. ÃÑ ½Ä¹°Çöûũſ »ý¹°·®¿¡ ´ëÇÑ APPÀÇ ±â¿©µµ´Â $0.1{sim}85.0%$·Î È£¼ö°£ÀÇ Å« Â÷À̸¦ º¸¿´´Ù. º» ¿¬±¸°á°ú´Â Áö±Ý±îÁö ½Ä¹°Çöûũſ ¿¬±¸¿¡¼ ¼Ò¿ÜµÇ¾îÁ® ¿Ô´ø APP°¡ È£¼ö »ýŰèÀÇ ÀÏÂ÷»ý»êÀڷνá Áß¿äÇÑ ºÎºÐÀ» Â÷ÁöÇϰí ÀÖÀ½À» º¸¿©ÁÖ°í ÀÖ´Ù.po °ª¿¡ ÀÇÇÑ º» ÇÏõÀº »ó·ùºÎÅÍ ÇÏ·ù±îÁö °ºÎ¼ö¼ºÀÇ ¸Å¿ì ¿ÀŹµÈ ¼öÁú·Î ÆÇÁ¤µÇ¾ú´Ù.X>${sim}$77·Î ºÎ¿µ¾ç »óÅ·Π³ªÅ¸³µ´Ù. ¼Ò±Ô¸ðÀÇ ºÎ¿µ¾çÈµÈ È£¼ö¿¡¼ ¼öÁú°ü¸®¿¡ ´ã¼öÆÐ·ù¸¦ ÀÌ¿ëÇÒ ¼ö ÀÖ´Â °¡´É¼ºÀ» Á¦½ÃÇÑ´Ù.³ª, ÆÈ´çÈ£´Â ¼Ò¾çÈ£º¸´Ù Ŭ·Î·ÎÇÊ 3³óµµ´Â ¾à 2.7¹è, ÃÑ Áú¼Ò ³óµµ´Â ¾à 1.2¹è ±×¸®°í ÃÑ ÀÎ ³óµµ´Â ¾à 2.6¹è ³ô¾Ò´Ù. µû¶ó¼ ¿µ¾ç¿°·ù ³óµµ°¡ ü·ù½Ã°£º¸´Ù Á¶·ùÁõ½Ä¿¡ ´õ ±â¿©ÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù..21}{ imes}(DA/SA)^{-0.50}$À̸ç $R^2$°¡ 61%ÀÇ ¼³¸í·ÂÀ» ³ªÅ¸³»¾î ³ó¾÷¿ë Àú¼öÁöÀÇ ÀÎ ³óµµ °æÇâÀ» ¿¹ÃøÇϴµ¥ »ç¿ë °¡´ÉÇÒ¡¡°ÍÀ¸·Î »ý°¢µÈ´Ù. ÀÌ»óÀÇ °á°ú·Î¼ ¿ì¸® ³ª¶ó ³ó¾÷¿ë Àú¼öÁöÀÇ ¼öÁú¿¹Ãø¿¡ ÀÖ¾î´Â º¹ÀâÇÑ À¯Ãâ¸ðÇüÀ̳ª À¯¿ª¸ðÇü, È£¼Ò¼öÁú¸ðÇü µîÀ» »ç¿ëÇϱ⺸´Ù´Â º» ¿¬±¸¿¡¼¿Í¡¡°°ÀÌ ±âÁ¸ÀڷḦ ºÐ¼®ÇÏ¿© µµÃâÇÑ °æÇèÀû °ü°è½ÄÀ» »ç¿ëÇÏ¸é ºñ±³Àû ÀûÀº ³ë·ÂÀ¸·Îµµ »ó´çÈ÷ ½Å·Ú¼ºÀÖ°Ô ¿¹ÃøÇÏ¿© ¼öÁú°ü¸®¿¡ µµ¿òÀÌ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.°¡ Á¤ÈÈ¿À²°úÀÇ »ó°ü°ü°èº¸´Ù Á»´õ À¯ÀǼº ÀÖ°Ô ³ªÅ¸³µ´Ù. À̰ÍÀº ³ôÀº ¼ö¸®ÇÐÀû ºÎÇÏÁ¶°ÇÀÌ ¿µ¾ç¿°·ù µîÀÇ Á¤ÈÈ¿À²¿¡´Â Å©°Ô ¿µÇâÀ» ¹ÌÄ¡Áö ¾ÊÀ½À» º¸¿©ÁÖ°í ÀÖÀ¸¸ç, µû¶ó¼ ºñ±³Àû ³·Àº ³óµµÀÇ ¿µ¾ç¿°·ù¸¦ °¡Áö°í ÀÖ°í, ¸¹Àº 󸮼ö·®À» ¿ä±¸ÇÏ´Â ºÎ¿µ¾çÈµÈ Àú¼öÁöÀÇ ¼öÁú°³¼±À» À§Çؼ´Â ³ôÀº ¼ö¸®ÇÐÀû ºÎÇÏÁ¶°Ç¿¡¼ ½Ã°£´ç Á¤È·®À» ´Ã¸®´Â °ü¸®¹æ¹ýÀÌ °æÁ¦ÀûÀ̸ç, ÀÌ¿¡ ÃÊÁ¡À» ¸ÂÃß¾î ³ª°¡¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.µµ·Î °ËÃâµÇ¾î À̸¦ °í·ÁÇÑÁ¤¼ö°øÁ¤ÀÇ °ü¸®°¡ ÇÊ¿äÇϸ®¶ó »ý°¢µÈ´Ù.$yr^{-1}$)ÀÇ 71%°¡ °¨¼ÒµÇ¾î¾ß ÇÒ Çʿ伺ÀÌ Á¦±âµÇ¾ú´Ù. ¶ÇÇÑ ¿©¸§Ã¶ ½ÉÃþ »ê¼Ò °í°¥ÀÌ ¾ß±âµÇ¾ú°í, ÀÌ ½Ã±â¿¡ ÅðÀû¹°·Î ¿ëÃâµÈ ÀÎÀÌ ½Ä¹°Çöûũſ ¼ºÀå¿¡ ÀÌ¿ëµÉ ¼ö Àֱ⶧¹®¿¡ ÅðÀû¹°¿¡ ´ëÇÑ °ü¸®µµ ¼öÇàµÉ Çʿ䰡 ÀÖ´Ù.rsity)Áö¼ö´Â 2000³â 7¿ù¿¡ 2.22·Î |
|
| Abundance of autotrophic picoplankton (APP) and their contribution to phytoplankton biomass were assessed in seven brackish lagoons and five freshwater reservoirs in the summer season. Phycocyanin-rich picocyanobacteria dominated APP in lagoons, while phycoerythrin-rich picocyanobacteria dominated APP in freshwater reservoirs. The cell density of APP ranged from $3.6{ imes}10^3$ to $5.0{ imes}10^6;cells/ml$ (median $2.5{ imes}10^5$) in brackish lagoons and from $3.8{ imes}10^4$ to $3.6{ imes}10^5;cells/ml$ (mdian $1.3{ imes}10^5$) in reservoirs. Carbon biomass ranged from 1.0 to $1,385.0;{mu}gC/L$ in lagoons and from 15.3 to $128.2;{mu}gC/L$ in reservoirs. APP cell density in Lake Kyungpo was over $10^6;cells/ml$in all three surveys, which is one of the highest values recorded in all over the world. During the thermal stratification in Lake Soyang, the maximum abundance of APP and their maximum contribution to phytoplankton biomass were observed near the thermocline. This study showed that APP sometimes can contribute significantly to phytoplankton biomass both in lagoons and reservoirs with the range from 0.1 to 85.0%. APP which have been overlooked in the past studies appears to be important primary producers in Korean lake ecosystem. |
| |
| Ű¿öµå |
| Autotrophic picoplankton;Brackish lagoon;Freshwater lakes;Korean lake ecosystem; |
| |
|
|
 |
|
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.3, 2001³â, pp.141-152
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317177567)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|