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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.24, no.2, 2006³â, pp.201-211
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( Characteristics of Zooplankton Community in the Udolmok Waterway, Korea )
À¯Á¤±Ô;Á¤Á¤È£;³²ÀºÁ¤;¸íö¼ö; ÀÎÇÏ´ëÇб³ ÇØ¾çÇаú;±¤¿î´ëÇб³ ȯ°æ°øÇаú;(ÁÖ)ÀÌ¿£¾¾ ±â¼ú¿¬±¸¼Ò;(ÁÖ)ÀÌ¿£¾¾ ±â¼ú¿¬±¸¼Ò;
 
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¿ïµ¹¸ñ ¼ö·Î¿¡¼­ ¿ä°¢·ù 35°³ ºÐ·ù±ºÀ» Æ÷ÇÔÇÏ¿© ÃÑ 55°³ µ¿¹°ÇöûũſÀÌ ÃâÇöÇÏ¿´´Ù. ¿¬¾ÈÁ¾Àº °èÀýÀûÀÎ Á¾ÃµÀ̸¦ º¸¿´À¸¸ç, ³­·ù ¿Ü¾ç¼º Á¾Àº Àü Á¶»ç ½Ã±â¿¡¼­ ÃâÇöÇÏ¿´´Ù. ºÐ·ù±º ¼ö´Â âÁ¶ ½Ã ÀúÁ¶¿¡¼­ °íÁ¶·Î °¥¼ö·Ï Áõ°¡ÇÏ¸ç ³«Á¶ ½Ã °íÁ¶¿¡¼­ ÀúÁ¶·Î °¥¼ö·Ï °¨¼ÒÇÏ¿´´Ù. µû¶ó¼­ ¿ïµ¹¸ñ ÇØ¿ªÀº ¿¬Áß ¿ÜÇØ¼ö ¿µÇâ¿¡ µû¸¥ ¿Ü¾çÁ¾ÀÇ À¯ÀÔÀ¸·Î µ¿¹°Çöûũſ Á¾Á¶¼º¿¡ ¿µÇâÀ» ¹Þ´Â´Ù. Àüü µ¿¹°Çöûũſ ÇöÁ¸·®Àº $104sim2,717indiv.m^{-3}$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³»¸ç 2003³â 8¿ù¿¡ °¡Àå ³ô°í 2004³â 2¿ù¿¡ °¡Àå ³·¾Ò´Ù. Á¶¼®Áֱ⿡ µû¸¥ ÇöÁ¸·® º¯È­¿¡¼­ 11¿ù°ú 2¿ù¿¡ ½Ã°£Àû º¯À̼ºÀÌ Å©°í ºÒ±ÔÄ¢ÀûÀε¥ ¹ÝÇØ 8¿ù°ú 4¿ù¿¡´Â ºñ±³Àû ±ÔÄ¢ÀûÀÎ º¯È­ Ãß¼¼¸¦ ³ªÅ¸³Â´Ù. 8¿ù°ú 4¿ù¿¡´Â âÁ¶ ¹× ³«Á¶¿¡¼­ Á¶·ù°¡ °¡Àå °­ÇÑ ½Ã°£¿¡´Â ³·Àº ÃâÇö °³Ã¼¼ö°¡ ³ªÅ¸³µÀ¸¸ç, Á¶·ù°¡ ¾àÇØÁú¼ö·Ï °³Ã¼¼ö°¡ Áõ°¡ÇÏ¿© °íÁ¶ ¹× ÀúÁ¶¿¡¼­ °³Ã¼¼ö°¡ ³ôÀº Ư¡À» º¸¿´´Ù. Paracalanus indicus, Cirripedia nauplii, Acartia hongiµîÀ» Æ÷ÇÔÇÑ ´ëºÎºÐÀÇ ¿ìÁ¡Á¾Àº âÁ¶º¸´Ù ³«Á¶¿¡¼­ Æò±Õ °³Ã¼¼ö°¡ ´ë·« 2¹è Á¤µµ ³ô¾Ò´Ù. ±×·¯³ª âÁ¶ ¹× ³«Á¶ ³»¿¡¼­µµ °³Ã¼¼öÀÇ º¯À̰¡ Å©°Ô ³ªÅ¸³µÀ¸¸ç Á¶¼®Áֱ⿡ µû¸¥ ¼ö¿Â, ¿°ºÐ, ±×¸®°í ¿±·Ï¼Ò aµî ȯ°æº¯È­°¡ ÀÛ¾Ò´Ù. µû¶ó¼­ ¿ïµ¹¸ñ ÇØ¿ª¿¡¼­´Â °­ÇÑ Á¶·ù¿Í ÁöÇüÀûÀÎ Á¶·ù ¼Óµµ Â÷¿¡ ÀÇÇØ Çü¼ºµÈ ¿Í·ù µîÀÌ °³Ã¼±º È®»ê, À̵¿ ±×¸®°í ¼Õ½Ç¿¡ ¿µÇâÀ» ¹ÌÃÄ ½Ã°£ÀûÀ¸·Î º¹ÀâÇÏ°í ºÒ±ÔÄ¢ÇÑ µ¿¹°Çöûũſ ±ºÁýÀ» º¸ÀδÙ.
55 zooplankton taxa including 35 copepoda were observed in the Uldolmok waterway during the sampling period from August 2003 to April 2004. Neritic species showed the seasonal species fluctuation, and oceanic warm-water species occurred throughout the year. The number of taxa tended to increase at the flood tide from low tide to high tide, and to decrease at the ebb tide from high tide to low tide. Therefore, species composition of zooplankton in the Uldolmok waterway seemed to be affected by the inflow of oceanic waters with oceanic species all the year round. Total abundance of zooplankton ranged from 104 (February 2004) to 2,717 indiv. $m^{-3}$ (August 2003). According to the tidal cycle, the change of total abundance was more irregular and variable in November 2003 and February 2004 than August 2003 and April 2004. In August 2003 and April 2004, total abundance was low at the strong tide, and was high at low and high tide when tidal current was weak. Average abundances of dominant species such as Paracalanus indicus, Cirripedia nauplii and Acartia hongi were on the order of twice higher at ebb tide than flood tide. However, their abundances were also subject to wide fluctuation within flood tide and ebb tide. The changes of environmental parameters such as water temperature, salinity and chlorophyll-a concentration were negligible along the tidal periods in the Uldolmok waterway. Therefore, the advection, transfer and loss of zooplankton population derived from strong tidal current and eddy formed by the local difference of tidal velocity lead temporal variation of zooplankton community more complex and variable in the Uldolmok waterway.
 
Ű¿öµå
Uldolmok waterway;zooplankton;flood tide;ebb tide;
 
ȯ°æ»ý¹° / v.24, no.2, 2006³â, pp.201-211
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200629734084578)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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