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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.2, 2009³â, pp.172-182
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( Analysis of Fish Guild Compositions and Total Mercury Contents of Fish Tissues in Analysis in Mangyeong River. ) |
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| º» ¿¬±¸´Â 2007³â ¸¸°æ°ÀÇ Áß »ó·ùÀÇ 3°³ ÁöÁ¡À» ¼±Á¤ÇÏ¿© ¾î·ùÀÇ ±æµåƯ¼º ¹× Á¶Á÷º° ¼öÀº ÇÔ·®À» ºÐ¼®ÇÏ¿´´Ù. ¾î·ùÀÇ Á¾Á¶¼º ºÐ¼®¿¡ µû¸£¸é 7°ú 26Á¾ÀÌ Ã¤ÁýµÇ¾úÀ¸¸ç, ÁÖ¿ä ¿ìÁ¡Á¾Àº °¥°Ü´Ï(47%)·Î ¼öÁú¿À¿°¿¡ ½±°Ô »ç¶óÁö´Â ¹Î°¨Á¾(Senstive species)ÀÌ ¿ìÁ¡ÇÏ¿´´Ù. »ó·ùÀÇ S1ÁöÁ¡Àº ±Õµîµµ ¹× Á¾ ´Ù¾çµµ°¡ ³·°Ô ³ªÅ¸³µÀ¸³ª ±× ¹ÛÀÇ 2°³ÀÇ ÁöÁ¡µé¿¡¼´Â Á¾´Ù¾çµµ ¹× dzºÎµµ°¡ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ³»¼ºµµ ±æµå ºÐ¼®¿¡ ÀÇÇϸé S1°ú S2 ÁöÁ¡¿¡¼´Â ¹Î°¨Á¾ÀÇ ºñÀ²ÀÌ °¢°¢ 70%, 42%À» º¸¿´À¸³ª ¹Ý¸é °ø´ÜÀ̳ª µµ½ÉÁöÀÇ Á¡¿À¿°¿ø¿¡ ÀÇÇØ ¿µÇâÀ» ¹Þ´Â S3 ÁöÁ¡Àº ¹Î°¨Á¾ÀÇ ºñÀ² °¨¼Ò(1%) ¹× ³»¼ºÁ¾ÀÇ ºñÀ²(60%)ÀÌ Áõ°¡ÇÏ¿´´Ù. Æ®·ÎÇÈ ±æµå ºÐ¼®¿¡¼´Â Ãæ½ÄÁ¾ÀÇ ºñÀ²ÀÌ S1¿¡¼ S3À¸·Î °¥¼ö·Ï °¨¼ÒÇÏ¿´´Ù. ÀÌ·± Ư¼ºÀº À¯±â¹°Áú (BOD, COD), ¿µ¾ç¿°·ù (TN, TP), Àü±âÀüµµµµ, ´ëÀå±Õ¼ö ¹× ºÎÀ¯¹°Áú¿¡ ±Ù°ÅÇÑ ÀÌ ÈÇÐÀû ¼öÁú Æò°¡ °á°ú¿Í ÀÏÄ¡ÇÏ¿´´Ù. ¹°¸®Àû¼½ÄÁöÆò°¡ (QHEI)´Â 3ÁöÁ¡¿¡¼ ¸ðµÎ '¾çÈ£'»óÅ·Π³ªÅ¸³ª ¹°¸®Àû ¼½ÄÁö°¡ ¾çÈ£ÇÑ »óÅÂÀÏÁö¶óµµ ¼öÁú¿¡ ÀÇÇØ ¾î·ùÀÇ Á¾±¸¼ºÀÌ ´Þ¶óÁú ¼ö ÀÖÀ½À» ³ªÅ¸³Â´Ù. ¾î·ùÀÇ Á¶Á÷ (tissue) ³»ÀÇ ÃÑ ¼öÀº ÇÔ·® ºÐ¼®¿¡ µû¸£¸é, Æò±Õ ³óµµ´Â 149.6 ${mu}g$ $kg^{-1}$·Î¼ ½Ä¾àûÀÇ ±âÁØ(500 ${mu}g$ $kg^{-1}$)¿¡ µû¸£¸é ¾î·ù °Ç°¼º¿¡ ¿µÇâÀ» ÁÙ¸¸ÇÑ ³óµµ´Â ¾Æ´Ñ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. °¢ Á¶Á÷º° ¼öÀº ³óÃ൵´Â ±ÙÀ°¿¡¼ °¡Àå ³ô¾Ò°í, ½ÅÀå, ôÃß, °£, ¾Æ°¡¹ÌÀÇ ¼øÀ¸·Î ³ªÅ¸³µ´Ù. |
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| This study was to analyze characteristics based on tolerance and trophic guilds and to determine the level of total mercury in tissues of sentinel species, Zacco platypus at 3 sampling sites of the Mangyeong River in 2007. Total sampled fishes were 26 species and the most dominant species was Zacco temminckii (47%). Fish community analysis was resulted that eveness index and diversity index showed low value at S1. However, diversity index and richness index at other sites showed high. According to various guilds analysis, relative abundance of sensitive species was 70% and 42% at S1 and S2, respectively. While sensitive species were decreased (1%) and tolerant species were increased (60%) at S3. It was mainly carried to the impacts of wastewater treatment plants near the location. Relative abundance of insectivore species was decreased from up (S1) to midstream area (S3). In addition, chemical water quality, based on analyses of BOD, COD, TP, TN, EC, MPN and SS concentration showed similar trends. Qualitative Habitat Evaluation Index (QHEI) was averaged 164, judged as "good" habitat condition. Average concentrations of total [Hg] was 146.9 ${mu}g$ $kg^{-1}$. In the muscles of total [Hg] was the highest, and then followed by kidney, vertebrae, liver, and gills. According to FDA standards (500 ${mu}g$ $kg^{-1}$) of Korea, total [Hg] has not affected to the individual fish health. |
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| Ű¿öµå |
| Mangyeong River;fish;tolerance and trophic guilds;total mercury; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.2, 2009³â, pp.172-182
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200926158875914)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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