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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.2, 2008³â, pp.144-154
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Ecopath ¸ðµ¨À» ÀÌ¿ëÇÑ ³²¾çÈ£ÀÇ ¿µ¾ç±¸Á¶ ºÐ¼®
( A Analysis of Trophic Structure in Lake Namyang Using the Ecopath Modelling ) |
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| º» ¿¬±¸´Â Ecopath ¸ðµ¨À» ÀÌ¿ëÇÏ¿© Àΰø´ã¼öÈ£ÀÎ ³²¾çÈ£ÀÇ »ýÅÂ°è ±¸Á¶¿Í ¿¡³ÊÁö È帧À» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. À̸¦ À§ÇØ 2007³â °¥¼ö±â(5¿ù)¿Í dz¼ö±â(8¿ù)¿¡ ³²¾çÈ£ 6°³ ÁöÁ¡¿¡¼ Á¶»ç¸¦ ½Ç½ÃÇÏ¿´À¸¸ç, ¾î·ùÀÇ °¢ ¾îÁ¾º° ¹Ðµµ¿Í ÀÚ¿ø·® ÀڷḦ À§ÇØ 2007³â 3¿ù¿¡¼ 11¿ù±îÁö ¸Å´Þ 2ȸ¾¿ Á¶»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. ³²¾çÈ£´Â ¼ö¿ÂÀÌ $17.9{sim}30.6^{circ}C$, Àü±âÀüµµµµ(EC) $400{sim}11,560;{mu}s;cm^{-1}$, ¿ëÁ¸»ê¼Ò $6.7{sim}12.61;mg;L^{-1}$, pH´Â $10.1{sim}10.5$, ÃÑ À¯±âź¼Ò(TOC) $3.810{sim}5.412;mg;L^{-1}$, ¿ëÁ¸Åº¼Ò(DOC) $3.629{sim}5.397;mg;L^{-1}$, ¼ö½É $0.4{sim}10.0;m$, Åõ¸íµµ $0.2{sim}0.7;m$µîÀÇ ¹üÀ§¸¦ º¸ÀÌ´Â ÀΰøÈ£·Î Á¶»çµÇ¾ú´Ù. º» ¿¬±¸¿¡¼ ³²¾çÈ£ »ýŰè´Â Å©°Ô 3´Ü°è Áï, 1Â÷ »ý»êÀÚ, 1Â÷ ¼ÒºñÀÚ,2Â÷ ¼ÒºñÀÚ·Î ³ª´©¾îÁö´Â ¿µ¾ç´Ü°è¸¦ º¸¿´´Ù. 1Â÷ »ý»êÀÚ¿¡ ÇØ´çÇÏ´Â »ý¹°±ºÀº À¯±â¼â¼³¹°, Á¶·ù, ´ëÇü¼ö»ý½Ä¹°À̾ú°í, 1Â÷ ¼ÒºñÀÚ¿¡´Â µ¿¹°Çöûũſ, Àú¼µ¿¹°, À×¾î, ¶±ºØ¾î, ºØ¾î, ±âŸ ¾î·ù µîÀ̾ú°í, 2Â÷ ¼ÒºñÀÚ¿¡´Â µ¿ÀÚ°³·Î È®ÀεǾú´Ù. ³²¾çÈ£ ¼ö°èÀÇ ÃÑ¿¡³ÊÁö·®Àº $14.1;kg;m^{-1}$·Î ³ªÅ¸³µÀ¸¸ç, 39%´Â ¼·½ÄÀ¸·Î, 21%´Â ÀÌÃâ, 12%´Â È£Èí, 28%´Â À¯±â¼â¼³¹°·Î ÀüȯµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, È¥ÇÕ¿µ¾ç¿µÇâ(MTI) °á°ú º» ³²¾çÈ£ »ýŰ迡¼ ÃÖ°íÆ÷½ÄÀÚ·Î ÃßÁ¤µÈ µ¿ÀÚ°³ÀÇ »ýü·® Áõ°¨Àº ±âŸ¾î·ù¿Í ºØ¾î, ¶±ºØ¾î, À×¾î µîÀÇ ¾î·ù±º ¹× Àú¼µ¿¹°¿¡°Ô Á÷ °£Á¢ÀûÀ¸·Î ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, °¢ ±×·ìÀÇ »ýü·® Áõ°¡´Â ±×·ì ³» Á¾°£ ¸ÔÀÌ °æÀïÀ» ¾ß±â½ÃÄÑ °¢ ±×·ìº° ÀÚü»ýü·®À» °¨¼Ò½ÃŰ´Â À½ÀÇ È¿°ú¸¦ º¸ÀÌ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| The purpose of this study was to describe quantitatively trophic structures and to analyze energy flows in the Lake Namyang using the Ecopath with ecosim (Walter et al., 1997). The sampling and analyses were carried out at 6 sampling sites of the Lake Namyang during May and November in 2007. A total of 10 groups were considered in this study (detritus, macrophytes, phytoplankton, zooplankton, zoobenthos, Cyprinus carpio, Carassius cuvieri, Carassius auratus, Pseudobagrus fulvidraco and other fishes) to assess the trophic relationship, energy flows and interactions between them. As a result, it was concluded that Lake Namyang was consisted of primary producers (Detritus, Macrophytes, Phytoplankton), primary consumers (Zooplankton, Zoobenthos, Cyprinus carpio, Carassius cuvieri, Carassius auratus, Other fishes) and secondary consumer (Pseudobagrus fulvidraco). The total system throughput was estimated at $14.1;kg;m^{-1};year^{-1}$ including a consumption of 39%, exports of 21%, respiratory flows of 12% and flows into detritus of 28%. MTI analyses indicate that Pseudobagrus fulvidraco have positive impact on Cyprinus carpio, Carassius cuvieri and Carassius auratus. On the other hand, other fishes have negative impact on Cyprinus carpio, Carassius cuvieri and Carassius auratus. All the functional groups except detritus had a negative impact on themselves and this may show within-group competition for the same resources. |
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| Ű¿öµå |
| Ecopath with ecosim;trophic relationship;energy flows;Lake Namyang; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.2, 2008³â, pp.144-154
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200827448607746)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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