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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.27, no.4, 2009³â, pp.425-432
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¿µ±¤ ¿ÍźõÀÇ ÁßÇüµ¿¹°Çöûũſ ±ºÁýµ¿ÅÂ
( Mesozooplankton Community Dynamics in Watan Stream, Yeonggwang, Korea ) |
| À̵¿ÁÖ;±è¼¼È;ÀÌ¿øÃ¶; ÇѾç´ëÇб³ »ý¸í°úÇаú;¿ëÀδëÇб³ »ý¸í°úÇаú;ÇѾç´ëÇб³ »ý¸í°úÇаú;
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| Àü¶ó³²µµ ¿µ±¤±º ¿Íźõ Áö·ù¿¡ ¼½ÄÇÏ´Â ÁßÇüµ¿¹°ÇöûũſÀÇ Á¾Á¶¼º°ú dzºÎµµ, ¿ä°¢·ùÀÇ ºÐÆ÷ ¹× ȯ°æ°ú °ü°è¸¦ Á¶»çÇϱâ À§ÇÏ¿© 2006³â 4¿ù, 7¿ù, 8¿ù, 10¿ù, 12¿ù, 2007³â 2¿ù 6ȸ¿¡ °ÉÃÄ ÃÑ 8°³ÀÇ Á¤Á¡¿¡¼ äÁýÀ» ÇÏ¿´´Ù. Á¶»ç ±â°£ µ¿¾È ÃâÇöÇÑ ÁßÇüµ¿¹°ÇöûũſÀº 45°³ÀÇ ºÐ·ù±ºÀ¸·Î ¿ä°¢·ù´Â 29Á¾, Áö°¢·ù´Â 8Á¾ µîÀÌ ÃâÇöÇÏ¿´´Ù. ¿ìÁ¡ÇÏ´Â ºÐ·ù±º Áß ¿ä°¢·ù´Â 2¿ù¿¡ 13Á¾À¸·Î °¡Àå ¸¹ÀÌ ³ªÅ¸³ ¹Ý¸é, 7¿ù, 8¿ù¿¡´Â 4Á¾À¸·Î °¡Àå Àû°Ô ÃâÇöÇÏ¿´´Ù. ÁßÇüµ¿¹°ÇöûũſÀÇ ÃâÇö°³Ã¼¼ö´Â 10¿ù ($31{sim}127,587;indiv.m^-3$)¿¡ °¡Àå ³ô¾ÒÀ¸¸ç, 12¿ù ($12{sim}233;indiv.m^-3$)¿¡ °¡Àå ³·°Ô ³ªÅ¸³µ´Ù. Á¾ ´Ù¾ç¼º Áö¼ö´Â 7¿ù(0.671)ÀÌ °¡Àå ³ô°Ô ³ªÅ¸³µÀ¸¸ç, 8¿ù(0.368)ÀÌ °¡Àå ³·°Ô ³ªÅ¸³µ´Ù. ¿Íźõ Áö·ù¿¡¼ ÁÖ¿ä ¿ìÁ¡Á¾Àº Acartia hongi·Î ³ªÅ¸³µ´Ù. A. hongi´Â 2006³â 4¿ù, 12¿ù, 2007³â 2¿ù¿¡ ÃâÇöÇÏ¿´´Ù. ¼ö¿Â ¾à $12.0^{circ}C$¿¡¼ °¡Àå ¸¹Àº °³Ã¼¼ö¸¦ ³ªÅ¸³»¾ú°í, ÁÖ·Î ¿°ºÐµµ 30.0 psu ÀÌ»óÀÎ Áö¿ª¿¡¼ ¸¹ÀÌ ¹ß»ýÇÏ¿´´Ù. ´ã¼öÁö¿ª¿¡¼´Â Áö°¢·ùÀÎ Polyphemus pediculus, Moina weismani°¡ 06³â 8¿ù¿¡ ´ë·® ¹ß»ýÇÏ¿´´Ù. ¿ìÁ¡ ºÐ·ù±ºÀ̾ú´ø ¿ä°¢·ù´Â Áý±«ºÐ¼® °á°ú Á¶»ç½Ã±â º°·Î ¿°ºÐÀÇ º¯È¿¡ µû¶ó¼ µÎ°³ ¶Ç´Â ¼¼°³ÀÇ ¹«¸®·Î ±¸ºÐµÇ¾ú´Ù. ¿¬±¸Áö¿ª¿¡¼ ÁßÇüµ¿¹°ÇöûũſÀº ¼ö¹®ÀÇ °³Æó¿¡ µû¸¥ ¿°ºÐÀÇ º¯È¿Í °èÀýÀû Â÷ÀÌ¿¡ ÀÇÇÑ ¼ö¿ÂÀÌ ÃâÇöÁ¾ Á¶¼º°ú ÃâÇö °³Ã¼¼ö¿¡¼ ¿µÇâÀ» ¹Þ¾Ò´Ù. |
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| Mesozooplankton dynamics were studied in Watan stream which flows into the Yellow Sea in Yeonggwang, Korea. Samples were collected at eight stations bimonthly during April 2006~February 2007. Mesozooplankton community was consisted of 45 taxa (8 cladocerans and 29 cope-pods). The abundance varied between the highest one ($31{sim}127,587;indiv.m^{-3}$) in October, and the lowest ($12{sim}233;indiv.m^-3$) in December. Diversity index showed to be the highest value in July (0.671) and the lowest one in August (0.368). A euryhaline species, Acartia hongi was dominant in brackish water stations (the highest abundance at $13.4^{circ}C$ and 14.1 psu). In freshwater stations of the upstream, two cladoceran species of Polyphemus pediculus and Moina weismani occurred in high abundance in August. Dominant taxa of copepod were clustered to two or three groups mainly due to the difference of salinity gradients. Spatial distribution of mesozooplankton revealed to be determined by salinity gradients which were affected by opening and closing of the artificial dam in Watan stream. |
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| Ű¿öµå |
| mesozooplankton;salinity;copepod;Watan stream; |
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ȯ°æ»ý¹° / v.27, no.4, 2009³â, pp.425-432
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200920460307099)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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