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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.3, 2009³â, pp.340-349
¼­½Äó À¯Çü¿¡ µû¸¥ °©ÃµÀÇ ¾î·ù±ºÁý Ư¼º
( Characteristics of Fish Community in Gap Stream by Habitat Type )
À̵¿ÁØ;º¯È­±Ù;ÃÖÁرæ; »óÁö´ëÇб³ »ý¸í°úÇаú;»óÁö´ëÇб³ »ý¸í°úÇаú;»óÁö´ëÇб³ »ý¸í°úÇаú;
 
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2007³â 4¿ùºÎÅÍ 2008³â 10¿ù±îÁö °©ÃµÀÇ ÀÚ¿¬Çü ±¸°£ °¡¿îµ¥ 7°³ ÁöÁ¡À» ¼±Á¤ÇÏ¿© °¢ ¼­½Äóº° ¾î·ù±ºÁýÀÇ »ýÅÂÀû Ư¼ºÀ» ¿¬±¸ÇÏ¿´´Ù. Á¶»çÁöÁ¡Àº Æó¼âÇü ¿õµ¢ÀÌ(Closed pool), Æò¿©¿ï(Runs), ±Þ¿©¿ï(Riffles), ³»¸¸Çü ¿õµ¢ÀÌ(Opened pool), ¼Ò(Pool), ¡°Ë¿©¿ï(Rock-scattered riffles), ´ïÇü ¿õµ¢ÀÌ(D-type pool)µîÀ¸·Î ±¸ºÐÇÏ¿´´Ù. äÁýµÈ ¾î·ù´Â ÃÑ 8°ú 29Á¾ÀÌ ÃâÇöÇÏ¿´À¸¸ç, ¼­½Äó¸¦ ´ëÇ¥Çϴ ǥ¡Á¾Àº ºØ¾î (Corassius ouratus, St. 1), ½¬¸® (Coreoleuciscus splendidus, St. 3), ³³ÀÚ·ç(Acheilognathus lanceolatus, St. 4), ÇǶó¹Ì (Zacco platypus St. 2, 5, 6, 7) Á¤µµ·Î ±¸ºÐÇÏ¿´´Ù. ºØ¾î(C. auratus)´Â Æó¼âÇü ¿õµ¢ÀÌ(St. 1)¿Í °°ÀÌ ÇÏ»ó±¸Á¶°¡ ´ëºÎºÐ ¸ð·¡·Î ±¸¼ºµÇ°í ¼ö½ÉÀº 65$sim$90 cm Á¤µµ·Î ´Ù¼Ò ±íÀ¸¸ç À¯¼ÓÀÌ °ÅÀÇ Á¤Ã¼µÈ ¼ö¿ªÀ» ¼±È£ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ½¬¸® (C. splendidus)´Â ±Þ¿©¿ï(St. 3)°ú °°ÀÌ ¼ö½ÉÀÌ 8$sim$38cmÁ¤µµ, À¯¼Ó $0.14sim0.85;m;sec^{-1}$ Á¤µµ, ±×¸®°í ÇÏ»ó±¸Á¶´Â ÀÛÀºµ¹°ú Á¶¾àµ¹ÀÌ »êÀçµÈ °÷¿¡ ÁÖ·Î ¼­½ÄÇϸç À¯¼ÓÀÌ ºü¸£±â ¶§¹®¿¡ BOD, COD, TN, TP, SSÀÇ ³óµµ´Â ³·À¸¸ç DO´Â ³ô°Ô ³ªÅ¸³ª´Â °÷À» ¼±È£ÇÏ¿´´Ù. ³³ÀÚ·ç(A. lanceolatus)´Â °³¹æÇü ¿õµ¢ÀÌ (St. 4)¿Í °°ÀÌ ¼ö½ÉÀÌ 3$sim$44cmÁ¤µµ,À¯¼ÓÀº $0.01sim0.02;m;sec^{-1}$·Î ³·Àº ¼ö½É°ú ´À¸° À¯¼ÓÀ» ¼±È£ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇǶó¹Ì (Z. platypus)´Â Æò ¿©¿ï(St. 2), ¼Ò(St. 5), ¡°Ë ¿©¿ï(St. 6)´ïÇü ¿õµ¢ÀÌ(St. 7)µî ¿©·¯ ¼­½Äó¿¡¼­ ¿ìÁ¡ÇÏ¿´´Âµ¥ ÁÖ·Î À¯·®ÀÌ Ç³ºÎÇϰí ÇÏ»ó±¸Á¶°¡ ´Ù¾çÇÑ ÁöÁ¡À» ¼±È£ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÑÆí ¡°Ë¿©¿ï(St. 6)¿¡¼­ ¹ÌÈ£Á¾°³(Iksookimia choii)°¡ 4°³Ã¼ ÃâÇöÇÏ¿´´Âµ¥ º» ¿¬±¸¿¡¼­ ÃâÇöÇÑ ¹ÌÈ£Á¾°³(I. choii)ÀÇ ¼­½ÄÁö´Â ÇÏÆø 24 m Á¤µµ, ¼ö½É ÀÌ 3$sim$35 cm Á¤µµ, À¯¼ÓÀº $0.01sim0.49;m;sec^{-1}$ Á¤µµ¸¦ ³ªÅ¸³»¸ç ÇÏ»ó±¸Á¶´Â Å«µ¹ºÎÅÍ ¸ð·¡±îÁö ´Ù¾çÇÑ ±¸Á¶¸¦ ÀÌ·ç°í ÀÖ¾ú´Ù. ¶ÇÇÑ ¼öÁúÃøÁ¤ °á°ú ¼ö¿Â, EC, BOD, COD, TN, TPÀÇ ³óµµ°¡ ºñ±³Àû ³·°Ô ³ªÅ¸³µ°í DO, SSÀÇ ³óµµ°¡ ºñ±³Àû ³ôÀº ¹üÀ§¸¦ ³ªÅ¸³»¾î ÀÌ¿Í ºñ½ÁÇÑ ¹°¸®, È­ÇÐÀûÀÎ ¼­½Ä ȯ°æÀÌ Á¶¼ºµÇ¾î¾ß¸¸ ¹ÌÈ£Á¾°³(I. choii)°¡ ¼­½ÄÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The natural type section of Gap Stream was divided into 7 sites, such as, closed pool, runs, riffle, opened pool, pool, reek-scattered riffle, and Dam-type pool. The ecological characteristics of fish community at each site was examined from April, 2007 to October, 2008. During the survey period, 29 species belonging to 8 families were collected, and Carassius auratus (St. 1), Coreoleuciscus splendidus (St. 3), Acheilognathus lanceolatus (St. 4) and Zacco platypus (St. 2, 5, 6, 7) were characteristic species that represent each habitat. The species of C. auratus preferred physical habitat with sand-bottom pool, moderate depth of 65$sim$90 cm, and stagnant water. The species of C. splendidus mainly preferred physical habitat with cobbles and pebbles are scattered riffles (St. 3), moderate depth of 65$sim$90 cm, and flow velocity is 0.14$sim$0.85 m $sec^{-1}$. It also preferred where concentration of BOD, COD, TN, TP and SS is low and DO's value is high, because the flow velocity is fast. A. lanceolatus preferred where the depth of water is low (3$sim$44 cm) like an opened pool (St. 4) and the flow velocity is slow (0.01$sim$0.02 m $sec^{-1}$). Z. platypus dominated in a variety of habitats such as runs (St. 2), pool (St. 5), rock-scattered riffles (St. 6) and D-type pool (St. 7), and it preferred places where flow is abundant and riverbed structure is diverse. On the other hand, 4 individuals of Iksookimia choii appeared at reek-scattered riffles (St. 6). I. choii appeared in this research lived in where the width of river is 24 m, the depth of water is 3$sim$35 cm and the flow velocity is 0.01$sim$0.49 m $sec^{-1}$, and riverbed structure was diversely formed with boulder to sand. Also, water temperature, EC, BOD, COD, TN and TP was low, but concentrations of DO and SS were high comparatively. Therefore, it seems that I. choii can live only in physical and chemical environment with similar conditions.
 
Ű¿öµå
Gap Stream;habitat type;riverbed structure;Iksookimia;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.3, 2009³â, pp.340-349
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200934939597498)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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