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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.28, no.3, 2010³â, pp.115-124
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Çϰè ÁøÇظ¸ ±¤¿ªÁ¶»ç - ½Ä¹°Çöûũſ ±ºÁý±¸Á¶ÀÇ ´Ü±âº¯È¿Í ¼öÆòÀû ºÐÆ÷Ư¼º -
( The Study of Summer Season in Jinhae Bay - Short-term Changes of Community Structure and Horizontal Distribution Characteristics of Phytoplankton - ) |
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ÁøÇظ¸ ±¤¿ªÇØ¿ª¿¡¼ ÇÏ°è ½Ä¹°ÇöûũſÀÇ ¼öÆòÀû ±ºÁý ±¸Á¶¸¦ ÆÄ¾ÇÇϱâ À§Çؼ 16°³ Á¤Á¡¿¡¼ ½Ä¹°Çöûũſ °³Ã¼¼ö ¹Ðµµ¿Í ȯ°æ¿äÀÎÀ» Á¶»çÇÏ¿´´Ù. ½Ä¹°ÇöûũſÀº ÃÑ 66Á¾ÀÌ ÃâÇöÇÏ¿´°í, ÀüüÀÇ 80% ÀÌ»óÀÌ ±ÔÁ¶·ùÀÇ Á¡À¯À²À» º¸¿´°í, ´ÙÀ½À¸·Î ¿ÍÆí¸ðÁ¶·ù¿Í ¶óÇǵµÁ¶·ù¼øÀ¸·Î °üÂûµÇ¾ú´Ù. ±ÔÁ¶·ùÀÇ ¿ìÁ¡Á¾Àº Chaetoceros affinis, C. didymus, C. pseudocurvisetus, Leptocylindrus danicus, Pseudo-nitzchia pungens, Skeletonema costatumÀ¸·Î ³ªÅ¸³µ°í, ¿ÍÆí¸ðÁ¶·ù´Â Cochlodinium polykrikoides, Gymnodinium impudicum, Karenia mikimotoi, Prorocentrium minimum, Protoperidium bipes, Scrippsiella trochoidea·Î °üÂûµÇ¾ú´Ù. °¢ Á¤Á¡º° ½Ä¹°ÇöûũſÀÇ ±ºÁý±¸Á¶¸¦ ¹ÙÅÁÀ¸·Î ÇÑ MDS¿Í Cluster ºÐ¼®¿¡¼ Çϰè ÁøÇظ¸ ±¤¿ªÇØ¿ªÀº Å©°Ô 2±×·ìÀ¸·Î ³ª´©¾îÁ³´Ù. Á¦1±×·ìÀº ¸¶»ê¸¸ ³»Ãø Á¤Á¡À¸·Î ´ã¼ö±â¿øÀ¸·Î ³ôÀº ¿µ¾ç¿° ³óµµ¿Í ³·Àº ¿°ºÐ³óµµÀÇ ¿µÇâÀ» °ÇÏ°Ô ¹ÞÀº °÷ÀÌ´Ù. Á¦2±×·ìÀº ³ª¸ÓÁö ´Ù¸¥ ¿ÜÃø Á¤Á¡À¸·Î ±¸ºÐµÇ¾ú´Ù. Á¤ÁØ´ëÀÀÀ» ±Ù°Å·Î ÇÑ ºÐ¼®(CCA)¿¡¼µµ ¸¸ ³»Ãø¿¡ ¿ìÁ¡ ÃâÇöÇÑ Å©±â°¡ ÀÛÀº ¿ÍÆí¸ðÁ¶·ù K. mikimotoi, P. minimum, P. bipes, S. trochoidea¿Í Á߽ɸñ ±ÔÁ¶·ù S. costatum, C. pseudocurvisetus´Â DIN (¾Ï¸ð´ÏÀ³, Áú»ê¿°, ¾ÆÁú»ê¿°)°ú »ó°ü°ü°è¸¦ º¸¿´´Ù. ÀÌ·¯ÇÑ °á°ú´Â º» ÇØ¿ª¿¡¼ ¸¸ ³»Ãø°ú ¿ÜÃøÀÇ Á¤Á¡À¸·Î ½Ä¹° ÇöûũſÀÇ ±ºÁýÁ¶¼ºÀÌ È®¿¬È÷ ±¸ºÐµÇ°í ÀÖ°í, ƯÈ÷ ¸¸³»Ãø¿¡¼ ³ôÀº Chl.a³óµµ¿Í ´õºÒ¾î ½Ä¹°ÇöûũſÀÇ ÇöÁ¸·®ÀÌ ³ô°Ô ³ªÅ¸³ª°í ÀÖ´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù. °á°úÀûÀ¸·Î ³»¸¸ÀÇ ¾ãÀº ¼ö½É¿¡¼ ÇÏ°è ½Ä¹°ÇöûũſÀÇ ´ëÁõ½ÄÀ» À¯¹ßÇÒ ¼ö ÀÖ¾ú´ø °ÍÀº ³ôÀº Áú¼Ò±â¿øÀÇ ¿µ¾ç¿°°ú ¼ö¿Â¿¡ ÀÇÇÑ ¿µÇâÀ¸·Î »ç·áµÈ´Ù. |
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In order to find out the short-term phytoplankton dynamics during summer season in Jinhae Bay, we investigated the environmental factors and phytoplankton population densities at 16 stations. A total of 66 phytoplankton species were appeared, diatoms occupied more than 80% of total species, and the others were dinoflagellates and raphidophyceaes. The dominant species were diatoms Chaetoceros affinis, C. didymus, C. pseudocurvisetus, Leptocylindrus danicus, Pseudonitzchia pungens, Skeletonema costatum and dinoflagellates Cochlodinium polykrikoides, Gymnodinium impudicum, Karenia mikimotoi, Prorocentrium minimum, Protoperidinium bipes and Scrippsiella trochoidea. According to multidimensional scaling (MSD) and cluster analysis based on phytoplankton community data from each station, the Jinhae bay was divided into two groups. The first group included stations in the inner part of Masan Bay, which is strongly influenced by high nitrogen loading and low salinity by river discharge. The second group included the other remained stations. Based on canonical correspondence analysis (CCA), small-size dinoflagellates K. mikimotoi, P. minimum, P. bipes and S. trochoidea and centric diatom C. pseudocurvisetus and S. costatum, which is dominanted in the inner area of bay, were related with DIN (ammonium, nitrate, nitrite). These results imply that the study area was grouped into the two water masses (inner and outer water of Masan Bay) and inner waters had higher phytoplankton abundances and Chl.a concentration than outer waters. As a result, summer phytoplankton peaks in the inner shallow bay were stimulated by increases in nitrogen and temperature. |
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summer phytoplankton community;canonical correspondence analysis (CCA);cluster analysis;multidimensional scaling (MDS);Jinhae Bay; |
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ȯ°æ»ý¹° / v.28, no.3, 2010³â, pp.115-124
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201015441599264)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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