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Çѱ¹½Ä¹°ÇÐȸ / v.35, no.4, 1992³â, pp.323-332
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ÀÎõ±Ç Æó¼â ÇØ¾ç»ýÅÂ°è ½Ä¹°ÇöûũſÀÇ »ý¹°·®°ú ÀÏÂ÷»ý»ê·Â
( Fluctuation of Phytoplankton Biomass and Primary Productivity in Closed Marine Ecosystem, Inchon Dock ) |
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| ÀÎõÇ× Æó¼â ÇØ¾ç»óŰ迡¼ ½Ä¹°ÇöûũſÀÇ »ý¹°·®°ú ÀÏÂ÷»ý»ê·ÂÀ» ÃøÁ¤Çϱâ À§ÇÏ¿© 1990³â 8¿ùºÎÅÍ 1991³â 12¿ù±îÁö ½Ã·á¸¦ äÁý, ºÐ¼®ÇÏ¿´´Ù. ½Ä¹°ÇöûũſÀÇ »ý¹°·®À» chlorophyll-a·Î ºÐ¼®ÇÑ °á°ú ÃÑ ¿±·Ï¼Ò·®Àº $1.61-28.67;mu extrm{g}$ Chl-a/l¿´´Âµ¥ ÀÌ Áß nanoplankton($2-20;mu extrm{m}$)Àº Á¶»ç ½Ã±â¿Í Á¤Á¡¿¡ µû¶ó ÃÑ ¿±·Ï¼Ò·®ÀÇ 19.0-82.3%¸¦ Â÷ÁöÇÏ¿´°í, picoplankton($0.2-2;mu extrm{m}$)Àº 4.5-51.4%¸¦ Â÷ÁöÇÏ¿´´Ù. ÇÑÆí, $^{14}C$ method¸¦ ÀÌ¿ëÇÑ ½Ä¹°Çöûũſ¿¡ ÀÏÂ÷»ý»ê·ÂÀ» $49.4-4359.4;mg;C{cdot}m^{-2}{cdot}day^{-1}$·Î ÃøÁ¤µÇ¾ú´Âµ¥, ÀÌ Áß ¹Ì¼¼Çöûũſ($20;mu extrm{m}$)ÀÇ ±â¿©À²Àº 18.8-94.6%¿©¼ ¼¼Æ÷ Å©±â°¡ ÀÛÀº °³Ã¼±ºÀÇ »ý¹°·®°ú »ý»ê·ÂÀÌ Àüü ½Ä¹°Çöûũſ ±ºÁý¿¡ Áß¿äÇÑ ¿ªÇÒÀ» ´ã´çÇϰí ÀÖÀ½À» ¾Ë ¼ö ÀÖ´Ù. ½Ä¹°Çöûũſ »ý¹°·®ÀÇ ¿ùº¯È£¸¦ º¸¸é 3¿ù¿¡ 1Â÷ ´ë¹ß»ýÀÌ ÀϾ°í 8¿ù¿¡ 2Â÷ ´ë¹ß»ýÀÌ ÀϾ´Ù. ½Ä¹°Çöûũſ¿¡ ÀÇÇÑ ½Ç¼Ò¿ä±¸·®Àº µ¿°è¿¡ $0.7;mg;at-N{cdot}m^{-2}{cdot}day^{-1}$¿¡¼ Çϰ迡 $60.7;mg;at-N{cdot}m^{-2}{cdot}day^{-1}$·Î Áõ°¡ÇÏ¿´°í Áú¼Ò°è ¿µ¾ç¿°¿¡ ´ëÇÑ È¸Àü½Ã°£(turnover time)Àº µ¿°è¿¡ 149.9ÀÏ¿¡¼ Çϰ迡 1.0ÀÏÀÌ¿©¼ Çϰ迡 Áú¼Ò ÀÌ¿ëÀ²ÀÌ ¸Å¿ì »¡¶óÁüÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. µ¿È¼ö(assimilation number)´Â Çϰ迡 Áõ°¡ÇÏ°í µ¿°è¿¡ °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. |
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| Chlorophyll-a concentrations of phytoplankton and primary productivities in closed marine ecosystem, Inchon Dock, were measured and analyzed monthly from August, 1990 to December, 1991. Chlorophyll-a concentrations ranged from 1.61 to $28.67;mu extrm{g};Chi-a/I$, where nanoplankton ($2-20;mu extrm{m}$) fractions contributed in 19.0-82.3% and picoplankton ($0.2-2;mu extrm{m}$) fractions in 4.5-51.4%. Primary productivities measured by $^{14}C$ method ranged from 49.4 to $4359.4;mg;C{cdot}m^{-2}{cdot}day^{-I}$, where nanoplankton ($20;mu extrm{m}$) contributed in 18.8-94.6%. These results implied that very tiny cell-sized phytoplankton populations were important in point of chlorophyll-a concentration and primary productivity of phytoplankton community. In monthly variations of chlorophyll-a concentration by phytoplankton, the first peak occurred in March and the second in August. Nitrogen requirement by phytoplankton ranged from 0.7 to $60.7;mg;at-N{cdot}m^{-2}{cdot}day^{-I}$ and the turnover time of inorganic nitrogen showed maximum during winter and minimum in summer. Carbon assimilation number increased in summer and decreased in winter.winter. |
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Journal of Plant Biology / v.35, no.4, 1992³â, pp.323-332
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920116206)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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