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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.2, 2006³â, pp.167-177
µµ¾ÏÈ£ÀÇ ¼öÁú°ú ¾î·ù±ºÁý Ư¼º ¿¬±¸
( A Study of Water Quality and Fish Community in Lake Doam )
ÀÌ»óÇÏ;À̱¤¿­;À念¼ö;ÀÓÀμö;Çã¿ì¸í;±èÀ籸;±è¹üö;ÃÖÀç¼®; »ïô´ëÇб³ ȯ°æ°øÇаú;°­¿ø´ëÇб³ »ý¹°Çаú;°­¿ø´ëÇб³ »ý¹°Çаú;°­¿ø´ëÇб³ »ý¹°Çаú;»ïô´ëÇб³ ȯ°æ°øÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ »ý¹°Çаú;
 
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µµ¾ÏÈ£´Â ¼ÛõÀÇ »ó·ù¼ö°è¿¡ °Ç¼³µÈ È£¼öÀÓ¿¡µµ ºÒ±¸ÇÏ°í ´ã¼öÃʱâºÎÅÍ ÁÖº¯¿¡ »êÀçÇØ ÀÖ´Â ºñÁ¡¿À¿°¿øÀÇ ¿µÇâÀ¸·Î ¿¬Áß Å¹µµ³óµµ°¡ ³ô¾Ò´Ù. µµ¾ÏÈ£ÀÇ ¼öÁúÀº Á¶»ç±â°£µ¿¾È Åõ¸íµµ°¡ Æò±Õ 0.8mÀ̾úÀ¸¸ç, Chl. a´Â Ç¥Ãþ Æò±Õ(0 ${sim}$ 5 m)ÀÌ 18.5 ${mu}g;L^{-1}$, ÃÑÀÎÀº Æò±Õ 111 ${mu}g;L^{-1}$, ÃÑÁú¼Ò´Â Æò±Õ 4.1 mg $L^{-1}$·Î ³ªÅ¸³µ´Ù. ÀÌ´Â U.S. EPA (1976)¿¡¼­ Á¦½ÃÇÑ ºÎ¿µ¾çÈ­ Á¤µµ¸¦ ÃʰúÇÏ´Â ¼öÁØÀ̾úÀ¸³ª, »ó·ù¿¡¼­ À¯ÀÔµÈ ¿À¿°¿øÀÌ ´ï ÇÏ·ùÁöÁ¡¿¡¼­ ³·°Ô ³ªÅ¸³µ´Ù. µµ¾ÏÈ£ÀÇ ¾î·ù»óÀº ÃÑ 6°ú 26Á¾ 9,600°³Ã¼°¡ äÁýµÇ¾úÀ¸¸ç, ¿ìÁ¡Á¾À¸·Î´Â µ¹°í±â (34.6%), ¾Æ¿ì°ÉÁ¾À¸·Î´Â ÇǶó¹Ì (22.5%)·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¼öȯ°æ¿¡ µû¸¥ ¾î·ù»óÀ» »ìÆì º» °á°ú µµ¾ÏÈ£ »ó·ù¿¡¼­´Â À¯¿µ¼º¾îÁ¾ÀÇ ºñÀ²ÀÌ ³ô°Ô ³ªÅ¸³µÀ¸¸ç, ÇÏ·ù·Î °¥¼ö·Ï Àú¼­¼º ¾îÁ¾ÀÇ ºñÀ²ÀÌ ³ô°Ô ÃâÇöÇÏ¿´´Ù. ÀÌ´Â µµ¾ÏÈ£ÀÇ »ó·ù¿Í ÇÏ·ùÀÇ ÇÏ»ó±¸Á¶¿¡ µû¸¥ Â÷ÀÌ¿Í ºÎÀ¯¹°Áú ¹× ʵµ¿Í °°Àº ¼öÁøÀÇ »ó ${cdot}$ ÇÏ·ù°£ÀÇ Â÷ÀÌ¿¡ ÀÇÇÑ ¿µÇâÀ¸·Î »ç·áµÈ´Ù. ±×·¯¹Ç·Î µµ¾ÏÈ£´Â ¼Ûõ¼ö°è¿¡¼­ ¿À¿°À» °¨¼Ò½ÃŰ´Â ¿ÏÃæÁö´ëÀÇ ¿ªÈ°À» Çϰí ÀÖ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. ÇÑÆí Æ¯ÀÌÇÒ »çÇ×Àº Comat (C. auratusÀÇ Ç°Á¾: Gold fish)°ú ºØ¾î (C. auratus)Ä¡ »çÀÌ¿¡¼­ ±³ÀâµÈ ºØ¾î (C. auratus. Hybrid type)°¡ ÃâÇöÇÑ °ÍÀÌ´Ù.
Both fish community and water quality in Lake Doam were investigated from September 2004 to August 2005. The turbidity of Lake Doam located in the upper region of the Songchun River in the South River system, Korea was high whole year due to the effects of distributed non point source pollutions in the watersheds. During the experimental periods, mean concentration of chlorophyll-a in epilimnetic layer (0 ${sim}$ 5 m) was 18.5 ${mu}g;L^{-1}$ and transparency ranged from 0.3 m to 2.4 m. Average TP and TN concentrations were 111 ${mu}g;L^{-1}$ and 4.1 $mg;L^{-1}$, respectively. Lake was classified as eutrophic state based on the nutrient concentrations suggested by U.S.EPA (1976). Total number of fish collected in Lake Doam was 9,600 individuals in 26 species of 6 family. Both dominant and subdominant species in the lake were P. herzi (34.9%) and Z. platypus (22.5%), respectively. Occurrence of water column species was high at upper region of the lake, whereas benthic type of species highly ,appeared in downstream area. The different fish assemblage between upper and lower area would be considered as the difference of bottom substrate and concentrations of suspended solids. In addition high appearance of Comat type of fish that is hybrid between gold fish (C, auratus) and C. auratus was found in the lake. It was unclear the reasons that high proportion of mutant species appeared in the lake. More researches are required in this area in future.
 
Ű¿öµå
Lake Doam;eutrophic state;fish community;pollutant barrier;hybrid;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.2, 2006³â, pp.167-177
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317186932)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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