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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.2, 2003³â, pp.191-199
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ÇÑź°ÀÇ ½Ä¹°Çöûũſ ±ºÁýÀÇ °èÀýÀû º¯È
( Seasonal Variation of Phytoplankton Community in the Hantan River ) |
| ±è¿ëÀç; ´ëÁø´ëÇб³ »ý¸í°úÇаú;
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| ÇÑź°ÀÇ ½Ä¹°Çöûũſ ±ºÁýÀÇ ºÐÆ÷¸¦ Á¶»çÇϱâ À§ÇØ 2001³â 11¿ùºÎÅÍ 2002³â 8¿ù±îÁö 6°³ÀÇ Á¤Á¡À» ¼±Á¤ÇÏ¿© °èÀýº°·Î ½Ç½ÃÇÏ¿´´Ù. Àü±âÀüµµµµ´Â »ó·ù¿¡¼ ÇÏ·ù·Î °¥¼ö·Ï Áõ°¡ÇÏ¿´´Ù. ±×·¯³ª ¿ì±âÀÎ 8¿ù¿¡´Â Àü±âÀüµµµµ°¡ ³·¾Ò´Ù. ¿ëÁ¸»ê¼Ò·®Àº Àü Á¤Á¡¿¡¼ Â÷À̰¡ ÀÛ¾ÒÀ¸³ª ¿À¿°¹°ÁúÀÌ À¯ÀԵǴ Á¤Á¡¿¡¼´Â ³·¾ÆÁö´Â °æÇâÀÌ ÀÖ¾ú´Ù. ÃÑÁú¼Ò¿Í ÃÑÀÎÀÇ ³óµµ´Â °èÀý¼ºº¸´Ù Á¤Á¡°£ÀÇ Â÷À̰¡ ¶Ñ·ÇÇÏ¿´´Ù. ¿±·Ï¼Ò a ³óµµ´Â Á¤Á¡°£ÀÇ Â÷ÀÌ »Ó¸¸ ¾Æ´Ï¶ó °èÀýÀû º¯È¸¦ ³ªÅ¸³»¾ú´Ù. ±×·¯³ª ÁýÁß°¿ì°¡ ÀÖ¾ú´ø 8¿ù¿¡´Â ³·¾Ò´Ù. ½Ä¹°ÇöûũſÀº ÃÑ 354Á¾·ù·Î¼ 99¼Ó 320Á¾ 19º¯Á¾ 3ǰÁ¾ ¹× 12¹Ìµ¿Á¤Á¾À¸·Î ±¸¼ºµÇ¾îÀÖ´Ù. ³ìÁ¶°ÀÌ 135Á¾·ù, ³ìÁ¶°ÀÌ 134Á¾·ù ±×¸®°í ³ª¸ÓÁö´Â À¯±Û·¹³ª° ³²Á¶°, Ȳ»öÆí¸ðÁ¶° µîÀ̾ú´Ù. ÇöÁ¸·®Àº 8,600${sim}$337,100cells/mL·Î °èÀýÀû ¹× Á¤Á¡°£ÀÇ º¯È¸¦ ³ªÅ¸³»¾úÀ¸¸ç ƯÈ÷ ÇÏ·ù ¼ö¿ª¿¡¼ ³ô¾Ò´Ù. ¿ìÁ¡Á¾Àº »ó·ù ¼ö¿ª¿¡¼ »ýűºÁß¿¡ ȣû¼öÁ¾ÀÎ Achnanthes alteragracillima, Achnanthes convergens ¹× Cymbella minuta var. silesiaca¿Í ±¤ÀûÀÀ¼ºÁ¾ÀÎ A. minutissimaµîÀ̾ú°í, ÇÏ·ù ¼ö¿ª¿¡¼´Â È£¿ÀʼºÁ¾ ¹× ºÎ¿µ¾ç»óÅ¿¡¼ »ýÀ°ÇÏ´Â Cyclotella meneghiniana, Chlamydomonas pseudopertyi¹× Nitzschia paleaµîÀ̾ú´Ù. ½Ä¹°ÇöûũſÇöÁ¸·®°ú Àü±âÀüµµµµ, BOD, ÃÑÁú¼Ò ¹× ÃÑÀΰúÀÇ »ó°ü°ü°è´Â 0.6 ÀÌ»óÀ¸·Î ¿À¿°µµ ¹× ¿µ¾ç¿° ³óµµ¿¡ ¹Î°¨ÇÏ°Ô ¹ÝÀÀÇÏ¿´´Ù. ³ìÁ¶°ÀÇ ÇöÁ¸·®°ú Àü±âÀüµµµµ, ÃÑÀÎÀº 0.6ÀÌ»óÀ¸·Î ³ô¾ÒÀ¸¸ç, ¿±·Ï¼Ò ³óµµ¿ÍÀÇ »ó°ü°è¼ö´Â 0.84·Î¼ ³ô¾Ò´Ù. A.convergens´Â Àü±âÀüµµµµ, BOD¿ÍÀÇ »ó°ü¼ºÀÌ -0.6À¸·Î ¿ªÀÇ °ü°èÀÎ ¹Ý¸é¿¡ N. palea´Â 0.8·Î¼ Á¤ÀÇ °ü°è¿´´Ù. N. palea¿Í ÃÑÀÎ, ÃÑÁú¼Ò¿ÍÀÇ »ó°ü°è¼ö´Â 0.7ÀÌ»óÀ¸·Î ¿µ¾ç¿° ³óµµ¿¡ ¹Î°¨ÇÏ°Ô ¹ÝÀÀÇÏ¿´´Ù. |
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| This study was conducted to investigate a seasonal variation of phytoplankton communities at 6 stations in the Hantan River from November, 2001 to August, 2002. Electric conductivity gradually increased from the upper reaches to the down reaches. DO differed not much from the upper reaches to down reaches, but it decreased at the station where the pollutants inflowed. T-N and T-P concentrations were high at station 4${sim}$6. Chlorophyll-a concentration gradually increased at the mid and down reaches. It was high in May but decreased in August by the heavy rains. Phytoplankton communities were identified a total 354 taxa composed of 99 genus, 320species, 19 varieties, 3 forma and 12 unidentified species. There were 135 taxa of Chlorophyceae, 134 taxa of Bacillariophyceae, and the other taxa were Euglenophyceae, Cyanophyceae, Xanthophycaea, Chrysophyceae and Dinophyceae. Standing crops ranged from 8,600 to 337,100 cells/mL and it was lower in August than May by the rains. Dominant species included Achnanthes alteragracillima, Achnanthes convergens, Achnanthes minutissima and Cymbella minuta var. silesiaca which were the saproxenous species at the reaches, and were Cyclotella meneghiniana, Chlamydomonas pseudopertyi and Nitzschia which were saprophilous and eutrophic species at the down reaches. The correlation coefficients between phytoplankton standing crops and EC, BOD and T-N, T-P was 0.68, 0.60, 0.60 and 0.70, respectively. All correlation coefficients between Chlorophyceae and EC, BOD and T-P were higher than 0.6. A. convergens were negative correlations with EC and BOD, but N. palea were positive with EC, BOD, T-N and T-P. |
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| Ű¿öµå |
| Hantan River;Phytoplankton;saprophilous;saproxenous species;correlation coefficient; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.2, 2003³â, pp.191-199
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200318317181190)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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