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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.38, no.2, 2005³â, pp.196-206
°¨Ãµ Áß ${cdot}$ »ó·ù¿ªÀÇ ¾î·ù»ó°ú °¥°Ü´Ï (Zacco temminckii) °³Ã¼±ºÀÇ »ýÅÂÇÐÀû Ư¼º
( Fish Fauna and Ecological Characteristics of Dark Chub (Zacco temminckii) Population in the Mid-Upper Region of Gam Stream )
¼­Áø¿ø; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø È£¼Òȯ°æ¿¬±¸¼Ò;
 
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°¨Ãµ´Ù¸ñÀû´ï °Ç¼³»ç¾÷ ÀÌÀüÀÇ È¯°æ¿µÇâÆò°¡¸¦ ¼öÇàÇϱâ À§ÇØ °¨Ãµ Áß ${cdot}$ »ó·ù¿ªÀÇ ¾î·ù±ºÁýÀÌ 2001³âºÎÅÍ 2003³â±îÁö °èÀýº°·Î Á¶»çµÇ¾ú´Ù. 2004³â 8¿ù¿¡´Â ¿µÇâÆò°¡ ÀÚ·áÀÇ ¾î·ù»ó È®Àΰú ´õºÒ¾î °¥°Ü´Ï °³Ã¼±ºÀÇ »ýÅÂÇÐÀû Ư¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇØ Ãß°¡Á¶»ç°¡ ÀÌ·ç¾îÁ³´Ù. ȯ°æ¿µÇâÆò°¡¿Í Ãß°¡Á¶»ç¸¦ ÅëÇØ ÃÑ 5°ú 14Á¾¿¡ ÇØ´çÇÏ´Â 1,081°³Ã¼ÀÇ ¾î·ù°¡ Á¶»çÁö¿ªÀ¸·ÎºÎÅÍ È®ÀεǾú´Ù. ±× Áß ½¬¸®, ±ä¸ô°³, µ¹¸¶ÀÚ, ÀÚ°¡»ç¸®, ²©Áö, µ¿»ç¸® µî 6Á¾ÀÇ Çѱ¹°íÀ¯Á¾ÀÌ Á¶»çµÈ ¹Ý¸é ¸êÁ¾À§±âÁ¾Àº ¹ß°ßµÇÁö ¾Ê¾Ò´Ù. °¥°Ü´Ï¿¡ ´ëÇÑ ±æÀÌ-¹«°Ô »ó°ü°ü°è, ºñ´ëÁö¼ö (K), »ó´ëÀûºñ´ëÁö¼ö (Kn)´Â Á¶»çÁöÁ¡º° ÇÏõº°·Î ºñ±³µÇ¾ú´Ù ±æÀÌ-¹«°Ô »ó°ü°ü°è¸¦ ±âº»À¸·Î ÇÑ ¼ö½ÄÀº ºÎÇ×õÀÌ TW;=;0.000004TL^{3.2357}$ °¨ÃµÀÌ TW;=;0.000002TL^{3.3566}$ À¸·Î¼­ °¨ÃµÀÇ °¥°Ü´Ï°¡ ºÎÇ×õÀÇ °°Àº Å©±âÀÇ °¥°Ü´Ï¿¡ ºñÇØ Á¶±Ý ´õ ºñ´ëÇÏ´Ù´Â °ÍÀ» ¾Ë¾Ò´Ù. ¶ÇÇÑ ÀüÀå¿¡ µû¸¥ ºñ´ëÁö¼ö¿ÍÀÇ °ü°è¸¦ »ìÆìº» °á°ú °¨ÃµÀÌ ºÎÇ×õº¸´Ù ³ôÀº ±â¿ï±â (0.0052)¸¦ °®°í Àִµ¥ ÀÌ´Â 1³â»ý (´ë·« ÀüÀåÀÌ 70 mm) ÀÌÇÏÀÇ °¥°Ü´Ï Ä¡¾îµéÀº ºÎÇ×õ (Æò±Õ K¿Í Kn = 0.939, 1.14)°ú °¨Ãµ(Æò±Õ K¿Í Kn = 0.955, 1.14)¿¡¼­ ºñ½ÁÇÑ °æÇâÀ» º¸ÀÌ´Â ¹Ý¸é 70 mm ÀÌ»óÀÇ °³Ã¼±ºÀÌ ºÎÇ×õ (Æò±Õ K¿Í Kn = 1.046, 1.14)¿¡ ºñÇØ °¨Ãµ (Æò±Õ K¿Í Kn = 1.116, 1.21)¿¡¼­ ÈξÀ ¾çÈ£ÇÑ ¿µ¾ç»óŸ¦ º¸¿´´Ù. ÀÌ·¯ÇÑ °á°úµéÀº ºÎÇ×õ À¯¿ª¿¡¼­ 2001³âµµ °¡¹³°ú 2002³âµµ ÅÂdz 'Rusa' ¹× 2003³âµµ ÅÂdz 'Maemi'·Î ÀÎÇÑ ÀÚ¿¬Àû ±³¶õ°ú ¹Ù·Î ¿¬ÀÌÀº ÇÏõº¹±¸°ø»ç¿Í °°Àº Àΰ£ Ȱµ¿À¸·Î ÀÎÇÑ ¼­½ÄÁö ±³¶õÀÇ °á°ú¿Íµµ Àß ÀÏÄ¡ÇÏ¿´´Ù. ±×·¯¹Ç·Î ȯ°æ¿µÇâÆò°¡ ½Ã ¾î·ù Á¾Á¶¼ºÀÇ È®ÀλӸ¸ ¾Æ´Ï¶ó °³Ã¼±º ¼öÁØ¿¡¼­ÀÇ »ýÅÂÇÐÀû Ư¼ºÁ¶»ç ¶ÇÇÑ È¯°æ¿µÇâÆò°¡·Î¼­ ¼öÇàµÇ¾î¾ß µÈ´Ù°í »ç·áµÈ´Ù.
The fish community in the mid-upper region of Gam Stream was examined seasonally from 2001 to 2003 in order to perform an environmental impact assessment prior to a construction of Gamcheon Multipurpose Dam. Additional investigation was conducted in August 2004 to confirm the fish fauna reported and to examine the ecological characteristics of Zacco temminckii population. The total number of fish caught from the study sites was 1,081 fish representing 5 families 14 species. There were 6 Korean endemic species including Coreoleuciscus splendidus, Squalidus gracilis majimae, Microphysogobio yaluensis, Liobagrus mediadiposalis, Coreoperca herzi and Odontobutis platycephala, but no endangered or vulnerable species were found. Length-weight relation, condition factor (K) and relative condition factor (Kn) of Zacco temminckii were compared by the study sites and stream. The equations based on length-weight relation in Buhang and Gam Streams were TW;=;0.000004TL^{3.2357}$ and TW;=;0.000002TL^{3.3566}$, respectively indicating the fish in Gam Stream became more rotund as length increases. The condition factor (K) and relative condition factor (Kn) against total length of Zacco temminckii at two streams indicated that the fish (>70 mm) in Cam Stream (mean K and Kn= 1.116, 1.21 respectively) had better nutritional condition than those in Buhang Stream (mean K and Ln = 1.046, 1.14 respectively). The results were corresponded with natural disturbances such as drought and intensive rainfall from 2001 to 2003 followed by human activities such as stream repair works. Therefore, it is considered to perform environmental impact assessment with not only confirmation of fish composition but also examination of ecological characteristics in population- level.
 
Ű¿öµå
fish;population;ecological characteristics;condition factor;natural disturbance;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.38, no.2, 2005³â, pp.196-206
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200518317184496)
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