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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.1, 2006³â, pp.52-61
ÀÚ°¡Á¶Á÷È­ Áöµµ ¹æ¹ýÀ» ÀÌ¿ëÇÑ Á¶ÀýµÈ ³«µ¿°­ ³» µ¿¹°Çöûũſ ¿ªµ¿¼ºÀÇ ¸ðÇüÈ­
( Patterning Zooplankton Dynamics in the Regulated Nakdong River by Means of the Self-Organizing Map )
±èµ¿±Õ;ÁÖ±âÀç;Á¤±¤¼®;À層Çö;±èÇö¿ì; ºÎ»ê´ëÇб³ »ý¹°Çаú;ºÎ»ê´ëÇб³ »ý¹°Çаú;ºÎ»ê´ëÇб³ »ý¹°Çаú;¿¡È÷¸Þ´ëÇб³ ÇØ¾çȯ°æ¿¬±¸¼¾ÅÍ;¼øÃµ´ëÇб³ ȯ°æ±³À°°ú;
 
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º» ¿¬±¸´Â Áö³­ 10¿©³â°£ÀÇ (1994 ${sim}$ 2003) ÁÖ°£°ÝÀÇ ÀڷḦ ÀÌ¿ëÇÑ ÀÚ°¡Á¶Á÷È­ Áöµµ (SOM) ¹æ¹ýÀ¸·Î ³«µ¿°­ ÇÏ·ù¿ª (¹°±Ý: ³«µ¿°­ Çϱ¸¾ðÀ¸·ÎºÎÅÍ 27 km »ó·ùÁöÁ¡)¿¡¼­ µ¿¹°Çöûũſ ±ºÁý µ¿Å¿¡ ´ëÇÑ °èÀýº° À¯ÇüÈ­ ºÐ¼®À» Çϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù. ´ã¼ö»ýŰ賻ÀÇ ¸ÔÀ̸Á¿¡¼­ µ¿¹°Çöûũſ ±ºÁýÀÇ ¿ªÇÒÀº ¸Å¿ì Áß¿äÇϳª, ´Ù¸¥ ±ºÁý ±¸¼º¿øµé°úÀÇ ºñ±³ ¿¬±¸´Â ´Ù¼Ò ¹ÌÁøÇÏ°Ô ÁøÇàµÇ¾ú´Ù. ºñ¼±Çü ¸ðÇü ¾Ë°í¸®ÁòÀÎ SOMÀ» µ¿¹°Çöûũſ ±ºÁý ¿ªµ¿¼º°ú °­ ȯ°æ ÀÎÀÚµé°úÀÇ »ó°ü°ü°è ÆÄ¾ÇÀ» À§ÇÏ¿© Àû¿ëÇÏ¿´´Ù. À°¼öÇÐÀû ȯ°æ ÀÎÀÚ (¼ö¿Â, ¿ëÁ¸»ê¼Ò, pH, ¼¼Å°Åõ¸íµµ, ʵµ, Ŭ·Î·ÎÇÊ a ³óµµ, À¯·® µî) µéÀ» µ¿¹°Çöûũſ ±ºÁý ±¸Á¶(À±Ãæ·ù, Áö°¢·ù ¹× ¿ä°¢·ù)ÀÇ °èÀýÀû º¯È­ À¯ÇüÆÄ¾ÇÀ» À§ÇÏ¿© »ç¿ëÇÏ¿´´Ù. ÇнÀµÈ SOM ¸ðÇüÀº À°¼öÇÐÀû ȯ°æÀÎÀÚ¿Í ¿¬°ü Áö¾î Áöµµ»ó¿¡ µ¿¹°ÇöûũſÀ» ¹èÄ¡µÇ¾ú´Ù. µ¿¹°ÇöûũſÀÇ ÁÖ¿ä ¼¼ ±ºÁýµéÀº °èÀýº° º¯È­ À¯Çü¿¡ À־ ³ôÀº À¯»ç¼ºÀ» °¡Áö°í ÀÖ¾ú´Ù. ´Ù¾çÇÑ À°¼öÇÐÀû ȯ°æÀÎÀÚ Áß, ¼ö¿ÂÀº µ¿¹°Çöûũſ ±ºÁý ¿ªµ¿¼º°ú ¸Å¿ì ³ôÀº ¿¬°ü°ü°è¸¦ ³ªÅ¸³»¾ú´Ù(ƯÈ÷, Áö°¢·ù). SOM ¸ðÇüÀº ¿©¸§±â°£ Áõ°¡µÈ °­ À¯·®¿¡ ÀÇÇØ¼­ µ¿¹°ÇöûũſÀ» ¸Å¿ì ÀúÇØÇÏ´Â ¿äÀÎÀ¸·Î Ç¥ÇöµÇ¾ú´Ù. Ŭ·Î·ÎÇÊ a ³óµµ´Â ¿ìÁ¡ÇÑ Ãʽļº µ¿¹°Çöûũſ Ȱ¼ºµµ¿¡ ÀÇÇØ Áöµµ»ó¿¡¼­ ±¸È¹µÇ¾ú´Ù. º» ¿¬±¸´Â ºñ¼±Çü ¹æ¹ýÀ» ÀÌ¿ëÇÑ À°¼öÇÐÀû ȯ°æ¿äÀΰú µ¿¹°Çöûũſ ¿ªµ¿¼ºÀ» ¿¬°ü Áö¾î ¼Ò°³ÇÏ¿´À¸¸ç, ÀÌ·¯ÇÑ Á¤º¸´Â ¸ÔÀ̸ÁÀ̶ó´Â °üÁ¡¿¡¼­ º¼ ¶§, °­ »ýÅÂ°è °ü¸®¿¡ À¯¿ëÇÑ Á¤º¸·Î Ȱ¿ëµÉ °ÍÀ¸·Î »ç·áµÈ´Ù.
The aim of this study was to analyze the seasonal patterns of zooplankton community dynamics in the lower Nakdong River (Mulgum, RK; river kilometer; 27 km from the estuarine barrage), with a Self-Organizing Map (SOM) based on weekly sampled data collected over ten years(1994 ${sim}$ 2003). It is well known that zooplankton groups had important role in the food web of freshwater ecosystems, however, less attention has been paid to this group compared with other community constituents. A non-linear patterning algorithm of the SOM was applied to discover the relationship among river environments and zooplankton community dynamics. Limnological variables (water temperature, dissolved oxygen, pH , Secchi transparency, turbidity, chlorophyll a, discharge, etc.) were taken into account to implement patterning seasonal changes of zooplankton community structures (consisting of rotifers, cladocerans and copepods). The trained SOM model allocated zooplankton on the map plane with limnological parameters. Three zooplankton groups had high similarities to one another in their changing seasonal patterns, Among the limnological variables, water temporature was highly related to the zooplankton community dynamics (especially for cladocerans). The SOM model illustrated the suppression of zooplankton due to the increased river discharge, particularly in summer. Chlorophyll a concentrations were separated from zooplankton data set on the map plane, which would intimate the herbivorous activity of dominant grazers. This study introduces the zooplankton dynamics associated with limnological parameters using a nonlinear method, and the information will be useful for managing the river ecosystem, with respect to the food web interactions.
 
Ű¿öµå
Self-Organizing Map;rotifer;cladoceran;copepods;the Nakdong River;Regulated River;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.1, 2006³â, pp.52-61
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317186419)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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