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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.24, no.1, 2006³â, pp.7-18
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( Temporal and Spatial Variations of Size-structured Phytoplankton in the Asan Bay ) |
ÇöºÀ±æ;½Å¿ë½Ä;¹Úö;¾ç¼º·Ä;ÀÌ¿µÁØ; ¸ñÆ÷ÇØ¾ç´ëÇб³ ÇØ¾ç½Ã½ºÅÛ°øÇкÎ;¸ñÆ÷ÇØ¾ç´ëÇб³ ÇØ¾ç½Ã½ºÅÛ°øÇкÎ;Ãæ³²´ëÇб³ ÇØ¾çÇаú;±¤ÁÖ´ëÇб³ ȯ°æ°øÇаú;±¹¸³È¯°æ¿¬±¸¿ø ¿µ»ê°¹°È¯°æ¿¬±¸¼Ò;
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¾Æ»ê¸¸¿¡¼ Å©±âº° ½Ä¹°ÇöûũſÀÇ °èÀýÀûÀÎ º¯µ¿°ú Å©±â ±¸Á¶¿¡ µû¸¥ ½Ä¹°Çöûũſ°ú ȯ°æÀÎÀÚ¿ÍÀÇ »ó°ü¼ºÀ» Á¶»çÇϱâ À§ÇØ 2003³â 10¿ùºÎÅÍ 2004³â 9¿ù±îÁö ¸Å¿ù 5°³ÀÇ Á¶»ç Á¤Á¡¿¡¼ ÇöÀåÁ¶»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. Á¶»ç±â°£ µ¿¾È Àüü ¿±·Ï¼Ò $alpha$ ³óµµ¿¡ ´ëÇØ¼ Å©±â°¡ Å« ¼¼Æ÷µé(¼ÒÇü ½Ä¹°Çöûũſ, $>20;{mu}m$)Àº Å©±â°¡ ÀÛÀº ¼¼Æ÷µé(¹Ì¼Ò½Ä¹°Çöûũſ, $3sim20{mu};m;$ Ãʹ̼¼ ½Ä¹°Çöûũſ, $<3{mu};m$)º¸´Ù ´õ ³ôÀº Á¡À¯À²À» ³ªÅ¸³»¾ú´Ù. ƯÈ÷ ¿±·Ï¼Ò a ³óµµ°¡ ³ô¾Ò´ø 2004³â 2¿ùºÎÅÍ 4¿ù±îÁö Å©±â°¡ Å« ¼¼Æ÷µéÀº Àüü ¿±·Ï¼Ò $alpha$ ´ëÇÏ¿© 80% ÀÌ»ó Á¡À¯À²À» º¸¿´´Ù. ½Ä¹°Çöûũſ »ýü·®ÀÌ °¨¼ÒÇß´ø 5¿ù ¼ÒÇü½Ä¹°Çöûũſ¿¡¼ ¹Ì¼Ò½Ä¹°ÇöûũſÀ¸·Î Å©±â ±¸Á¶ÀÇ º¯µ¿ÀÌ ÀϾÀ¸¸ç, Ãʹ̼¼ ½Ä¹°ÇöûũſÀÇ »ýü·®µµ ±Þ°ÝÈ÷ Áõ°¡ÇÏ¿´´Ù. °Ü¿ï°ú º½Ã¶µ¿¾È ¼ÒÇü½Ä¹°ÇöûũſÀº »ó·ùÁö¿ª¿¡¼ ³ôÀº »ýü·® ºÐÆ÷¸¦ º¸¿´À¸¸ç, ¹Ì¼Ò¿Í Ãʹ̼¼ ½Ä¹°ÇöûũſÀº º½°ú ¿©¸§Ã¶ Áß·ù¿Í ÇÏ·ù(Á¤Á¡ 3, 5)¿¡¼ ³ôÀº »ýü·® ºÐÆ÷¸¦ ³ªÅ¸³»¾ú´Ù. ¼ÒÇü½Ä¹°ÇöûũſÀº Ãß¿î °èÀý µ¿¾È ¼ö¿Â°ú ¿µ¾ç¿°ÀÇ °ø±Þ¿¡ ÀÇÇØ¼ Á¶ÀýµÇ¾îÁö´Â ¹Ý¸é¿¡ ¹Ì¼Ò¿Í Ãʹ̼¼ ½Ä¹°ÇöûũſÀº µûµíÇÑ °èÀý µ¿¾È ¼ºÃþ°ú ºû¿¡ ³ëÃ⠵ ÀÇÇØ¼ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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Samples were collected from five stations monthly from October 2003 to September 2004 to investigate seasonal variation of size structure of phytoplankton and relationship between size-fractionated phytoplankton and environmental factors in the Asan Bay. The contribution of large cells (microphytoplankton, $>20;{mu}m$) to total concentrations of chlorophyll $alpha$ was higher than small cells (nanophytoplankton, $3sim20;{mu}m$; picophytoplankton, $<3;{mu}m$) during the sampling period. Especially, large cells contributed 80% to the total chlorophyll a from February, 2004 to April 2004 when chlorophyll $alpha$ concentrations were high. The size structure of phytoplankton shifted from micro-size class to nano-size class and picophytoplankton rapidly increased when phytoplankton biomass decreased in May 2004. Microphytoplankton exhibited a high biomass in the upper region during winter-spring season whereas nano- and picophytoplankton showed two peaks in the middle-lower regions (Station 3,5) during spring and summer. Microphytoplankton are most likely controlled by water temperature and nutrient supply during the cold season whereas nano- and picophytoplankton may be affected by stratification, light exposure during the warm season. |
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Ű¿öµå |
Asan Bay;size-fractionated phytoplankton;controlling factors; |
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ȯ°æ»ý¹° / v.24, no.1, 2006³â, pp.7-18
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200617033417176)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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