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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.44, no.2, 2011³â, pp.226-238
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( Change of Fish Fauna and Community Structure in the Naeseong Stream around the Planned Yeongju Dam )
°­¿µÈÆ;±è»ó±â;È«±âºØ;±èÇѼø; °æºÏ´ëÇб³ »ý¸í°úÇкÎ;°æºÏ´ëÇб³ »ý¸í°úÇкÎ;°æºÏ´ëÇб³ »ý¸í°úÇкÎ;°æºÏ´ëÇб³ »ý¸í°úÇкÎ;
 
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2007³â 4¿ùºÎÅÍ 2009³â 10¿ù±îÁö ¿µÁÖ´ï ¿¹Á¤Áö¸¦ Áß½ÉÀ¸·Î ³»¼ºÃµ ¼ö°èÀÇ ¾î·ù»óÀ» Á¶»çÇÑ °á°ú ¼­½ÄÀÌ È®ÀÎµÈ ¾î·ù´Â 10°ú 25¼Ó 27Á¾À̾ú´Ù. äÁýµÈ ¾î·ù °¡¿îµ¥ À×¾î°ú ¾î·ù°¡ 17Á¾(63.0%)À¸·Î °¡Àå ¸¹¾Ò°í,´ÙÀ½Àº ¹Ì²Ù¸®°ú ¾î·ù°¡ 2Á¾(7.4%)À̾ú´Ù. Çѱ¹°íÀ¯Á¾Àº 5°ú 10Á¾À¸·Î Àüü ÃâÇöÁ¾ÀÇ 37.0%¸¦ Â÷ÁöÇÏ¿´À¸¸ç, ÃâÇöÁ¾ Áß¿¡¼­ ¿ìÁ¡Á¾Àº ÇǶó¹Ì(43.17%), ¾Æ¿ìÁ¡Á¾Àº Âü°¥°Ü´Ï(15.75%)¿´´Ù. ±¹³» ´Ù¸¥ ¼ö°è ¶Ç´Â ¿Ü·¡ ÀÌÀÔÁ¾Àº ²ô¸®, ´ë³ó°»ÀÌ, ¹è½º(»ó´ëdzºÎµµ 11.1%)¿´´Ù. 1990³â´ë Á߹ݱîÁö Âü°¥°Ü´Ï´Â Àü À¯¿ª¿¡¼­ ¿ìÁ¡Á¾À¸·Î ºÐÆ÷Çϰí ÀÖ¾úÀ¸³ª º» Á¶»ç¿¡¼­´Â ¾Æ¿ìÁ¡Á¾À¸·Î °³Ã¼±ºÀÌ °¨¼ÒÇÏ¿´°í, ÇÏ·ù¿ª¿¡¼­´Â ¼­½ÄÇÏÁö ¾Ê¾Æ ºÐÆ÷¿ªÀÌ Ãà¼ÒµÇ¿´´Ù. ±×¿¡ ¹ÝÇØ ÇǶó¹Ì´Â ÃÖ»ó·ù¸¦ Á¦¿ÜÇÑ ÀüÀ¯¿ª¿¡¼­ ¿ìÁ¡Á¾À¸·Î ³ªÅ¸³µ´Ù. ȯ°æºÎ ¸êÁ¾À§±âÁ¾ÀÎ Èò¼ö¸¶ÀÚ´Â ÇÏ»óÀÌ ÁÖ·Î ¸ð·¡·Î µÈ º»·ùºÎÀÇ Àü À¯¿ª¿¡ ¼­½ÄÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Á¶»çÁö¿ªÀÇ ¾î·ù±ºÁýÀ» ºÐ¼®ÇÑ °á°ú Á¾´Ù¾çµµ, ±Õµîµµ ¹× ¿ìÁ¡µµÁö¼ö´Â °¢°¢ 0.881, 0.615 ¹× 0.230À¸·Î ³ªÅ¸³µ´Ù. ÇÏÆø ¹× À¯¼ö·®ÀÌ ¸¹°í ´Ù¾çÇÑ ¼­½Äó¸¦ °¡Áö´Â º»·ùºÎÀÇ Á¾´Ù¾çµµ°¡ 0.829·Î 0.735ÀÇ Áö·ùºÎº¸´Ù ³ô°Ô ³ªÅ¸³µ´Ù.
Ichthyological fauna and community structure were surveyed in the Naeseong Stream around the planed Yeongju Dam, Yeongju City, Gyeongsangbuk-do from April 2007 to October 2009, During the survey period, 27 species (25 genera, 10 families) were collected. Cyprinid fish comprised 63.0% (17 species) and cobitid fish comprised 7.4% (2 species). Ten of the 27 species (37.0%) were endemic species. The dominant and subdominant species based on the number of individuals was Zacco platypus (43.2%) and Zacco koreanus (15.8%), respectively. Introduced from the other native rivers and exotic fish were Opsariichthys uncirostris amurensis, Leiocassis ussuriensis, and Micropterus salmoides (11.1%). The declining population density of Zacco koreanus and its subdominant status represents a change, since, up until the mid 1990's, it was widely distributed throughout the area and was the dominant species. The distribution area of Zacco koreanus decreased in size; by 2009, it no longer inhabited the lower reaches of the Naeseong Stream. On the other hand, Zacco platypus remained the dominant species throughout the area, except for the upper-reaches of the water-course. Gobiobotia naktongensis inhabited all areas of Naeseong Stream, which mainly has a sandy bottom. Analyses of the fish community revealed species diversity, even-ness and dominant indices were 0.881, 0.615, and 0.230 respectively. These results showed that the main river, in which the water width and flow are abundant and which has various habitats, has a higher species diversity (0.829) than the tributary (0.735).
 
Ű¿öµå
fish fauna;fish community;diversity;Naeseong Stream;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.44, no.2, 2011³â, pp.226-238
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201124359108155)
¾ð¾î : Çѱ¹¾î
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