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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.17, no.3, 1999³â, pp.271-278
µæ·®¸¸ÀÇ ¼öÁú°ú ½Ä¹°Çöûũſ ÀûÁ¶
( Water Qualify and Phytoplankton Red Tide in Deukryang Bay of Korea )
ÀÌÁøÈ¯;ÀÌÀºÈ£; »ó¸í´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;»ó¸í´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;
 
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º» ¿¬±¸´Â 1998³â 7¿ùºÎÅÍ 9¿ù±îÁö µæ·®¸¸ 19°³ Á¤Á¡ Ç¥Ãþ¿¡¼­ ¼öÁú, ½Ä¹°Çöûũſ ±ºÁýÀÇ ±¸Á¶¿Í µ¿Å ¹× ÀûÁ¶ÀÇ Æ¯Â¡À» ±Ô¸íÇÏ¿´´Ù. Á¶»ç±â°£ Áß ¿ùº° Æò±Õ ¼ö¿ÂÀº 24.0~28.6$^{circ}C$, ¿°ºÐÀº 25.0~28.6$ extperthousand$·Î ¿ùº° ¹× Á¤Á¡°£ º¯À̰¡ ÄÇ´Ù. º» ÇØ¿ªÀÇ Chlorophyll-$alpha$ÀÇ ³óµµ´Â 7¿ù°ú 8¿ù¿¡ Æò±Õ 11.59mg/m$^3$, 7.52mg/m$^3$¸¦ ³ªÅ¸³»¾î ÀÏÂ÷»ý»êÀÌ ³ô¾ÒÀ¸¸ç, 9¿ùÀÇ ¼öÁúÀº ºÎ¿µ¾çÈ­ ´Ü°è¿¡ ÀÖ¾ú´Ù. Á¶»ç±â°£ Áß ÃâÇöÇÑ ½Ä¹°Çöûũſ±ºÁýÀº µ¹¸»·ù°¡ 89Á¾·ù, ¿ÍÆí¸ðÁ¶·ù°¡ 19Á¾·ù, ±ÔÁúÆí¸ðÁ¶·ù°¡ 3Á¾·ù µî ÃÑ 111ºÐ·ù±ºÀ̾ú´Ù. ½Ä¹°Çöûũſ ÇöÁ¸·®Àº ÃÖÀú 1.3$ imes$$10^4$cells/¥é(9¿ù, Á¤Á¡ 17)¿¡¼­ ÃÖ°í 3.8$ imes$$10^{6}$cells/¥é(7¿ù, Á¤Á¡ 10)±îÁö º¯È­ÇÏ¿´´Ù. 7¿ù¿¡´Â °ÅÀÇ Àü ÇØ¿ª¿¡¼­ Ȳ°¥»öÀÇ ÀûÁ¶°¡ ¹ß»ýµÇ¾ú°í, Æò±Õ ÇöÁ¸·® 1.8$ imes$$10^{6}$cells/¥éÀ» º¸¿´À¸¸ç À̶§ ÀûÁ¶¿øÀÎÁ¾Àº Prorocentrum minimum, Chaetoceros curvisetus, Ceratium furca, Thalassiosira sp. µîÀ̾úÀ¸¸ç, ¸¸ÀÇ »óºÎ¿¡¼­´Â p. minimum, ¸¸ÀÇ Áß¾ÓºÎ¿Í ¸¸ ÀÔ±¸¿¡¼­´Â ch. curvisetus, ³ìµ¿Ç× ÁÖº¯¿¡¼­´Â c. furca¿Í Thalassiosira sp.¿¡ ÀÇÇØ ÀûÁ¶°¡ °¢°¢ ¹ß»ýµÇ¾ú´Ù. º» ÇØ¿ª¿¡¼­ Áú¼Ò¿Í °°Àº ¿µ¾ç¿°·ùÀÇ ºÐÆ÷´Â ¸¸ÀÇ »óºÎ¿Í ³ìµ¿Ç× ÁÖº¯¿¡¼­ ³ô¾Ò°í, ÀûÁ¶¹ß»ý½Ã ¼ö¿Â 23.8~29.7$^{circ}C$ ±×¸®°í ¿°ºÐ 23.1~27.0$ extperthousand$¿´´Ù.
In order to clarify water quality, dynamics and structure of phytoplankton communities, and red tides, the present study was carried out monthly from July to September 1998 at 19 stations in Deukryang Bay. Water temperature varied from 24.$0^{circ}C$ to 28.6$^{circ}C$, and salinities ranged from 25.0$ extperthousand$ to 28.6$ extperthousand$. During red tides in July, chlorophyll-$alpha$ contents were rather high in August, it showed that phytoplankton controlled primary production in this bay. Phytoplankton was composed of 89 diatoms, 19 dinoflagellates, and 3 silicoflagellates. Phytoplankton standing crops varied from a minimum of 1.3$ imes$10$^4$cells/¥é(Sept., St. 17) to a maximum of 3.8$ imes$10$^{6}$ cells/¥é (July, St. 10). Red tides occurred in July when the standing crops averaged 1.8$ imes$10$^{6}$ cells/¥é. Leading the causative organisms of red tide were Prorocentrun minimum in the upper bay, Chaetoceros curvisetus in the mouth and middle part of the bay, Ceratium furca and Thazassio- sira sp. around Nokdong Harbour. Concentration of nutrients such as nitrogen was high in the upper bay, during red tides, water temperatures varied from 23.8$^{circ}C$ to 29.7$^{circ}C$ and salinity were 23.l$ extperthousand$ to 27.0$ extperthousand$.
 
Ű¿öµå
Deukryang Bay;Water quality;Chlorophyll-${alpha}$;Phytoplankton community;Red tides;
 
ȯ°æ»ý¹° / v.17, no.3, 1999³â, pp.271-278
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921494793)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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