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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.4, 2008³â, pp.423-432
ÇǶó¹ÌÀÇ À¯¿µÆ¯¼º¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( An Experimental Study on the Swimming Performance of Pale Chub(Zacco platypus) )
¹Ú¼º¿ë;±è¼­ÁØ;À̽ÂÈÖ;À±º´¸¸; ¸íÁö´ëÇб³ Åä¸ñ.ȯ°æ°øÇаú;¸íÁö´ëÇб³ Åä¸ñ.ȯ°æ°øÇаú;È£³²´ëÇб³ »ý¸í°úÇаú;¸íÁö´ëÇб³ Åä¸ñ.ȯ°æ°øÇаú;
 
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¾î·ù´Â »ýÁ¸°ú ¹ø½ÄÀ» À§ÇØ È¸À¯ ¶Ç´Â À̵¿À» Çϸç, ÀÌ·¯ÇÑ È¸À¯³ª À̵¿Àº ¾îÁ¾¿¡ µû¶ó ³ÐÀº ¹üÀ§¿¡¼­ ÀÌ·ç¾î Áú¼öµµ ÀÖ°í ±¹ÁöÀûÀ¸·Î ÀÌ·ç¾î Áú ¼öµµ ÀÖ´Ù. ÇǶó¹Ì´Â Çѱ¹ÀÇ °­°ú ÇÏõ¿¡ ¿ìÁ¡Á¾À¸·Î ¼­½ÄÇÏ´Â ¾îÁ¾ÀÌ´Ù. ±×·¯³ª ÇÏõ¿¡ ¼³Ä¡µÈ ´ï, º¸, ¾Ï°Å µîÀº ¾î·ù°¡ À̵¿Çϰųª ¹ø½ÄÇϴµ¥ ¸¹Àº Àå¾Ö°¡ µÇ°í ÀÖ´Ù. ½ÇÁ¦·Î ¾î·ù ¼­½Äó°£ÀÇ ¿¬°áºÎ°¡ ¹è¼ö¾Ï°Å(culvert)·Î ¼³Ä¡µÇ¾î ÀÖ´Â °æ¿ì¿¡´Â Æò»ó½Ã ÇǶó¹Ì¿Í °°ÀÌ ¸öÁýÀÌ ÀÛÀº ¾î·ù°¡ À̵¿Çϴµ¥ Àå¾Ö¸¦ ÁÙ Á¤µµÀÇ ºü¸¥ À¯¼Ó°ú ³·Àº ¼ö½ÉÀÌ ¹ß»ýµÇ°í ÀÖ´Ù. ±×·¯³ª ±¹³»¿¡¼­´Â ±¹³» ÇÏõ¿¡ ¼­½ÄÇϰí ÀÖ´Â ¹Î¹°°í±âÀÇ À¯¿µÆ¯¼º¿¡ °üÇÑ ¿¬±¸°¡ ÃæºÐÄ¡ ¾Ê¾Æ Çö½ÇÀûÀ¸·Î ¾îµµ±â´ÉÀ» À§ÇÑ ÇÕ¸®ÀûÀÎ ¹è¼ö¾Ï°Å ¼³°è±âÁØÀ» ¸¶·ÃÇϱⰡ ¾î·Á¿î ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ¹è¼ö¾Ï°ÅÀÇ Æò»ó½Ã ¾îµµ±â´ÉÀ» À§ÇÑ ¼³°èÀ¯¼ÓÀ» Á¦½ÃÇϱâ À§ÇØ ±¹³» ÇÏõÀÇ ¿ìÁ¡Á¾ÀÌÀÚ ±¹ÁöȸÀ¯¼º ¾îÁ¾ÀÎ ÇǶó¹ÌÀÇ À¯¿µÆ¯¼ºÀ» ºÐ¼®ÇϰíÀÚ ÇÔÀÌ´Ù. ÇǶó¹ÌÀÇ À¯¿µÆ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇÑ ½ÇÇèÀº ÁõÁøÀ¯¼Ó¹æ¹ý(incremental velocity test)°ú °íÁ¤À¯¼Ó¹æ¹ý(fixed velocity test)À» º´ÇàÇÏ¿© ¼öÇàÇÏ¿´´Ù. ½ÇÇè °á°ú ÇǶó¹Ì(üÀå 8.9cm)ÀÇ À¯¿µÆ¯¼º Áß ÇѰèÀ¯¿µ¼Óµµ´Â 0.7 m/s Á¤µµ·Î ³ªÅ¸³µ´Ù. µû¶ó¼­ È«¼ö±â¸¦ Á¦¿ÜÇÑ Æò»ó½Ã À¯·®Á¶°Ç¿¡¼­ ¹è¼ö¾Ï°Å ¼³°èÀ¯¼ÓÀº ÇǶó¹Ì(üÀå 8.9cm)¸¦ ´ë»ó¾îÁ¾À¸·Î ÇÒ °æ¿ì 0.7 m/s ¸¦ ÃʰúÇÏÁö ¾Ê¾Æ¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ÃÖ¼Ò¼ö½ÉÀº µîÁö´À·¯¹Ì±îÁö ÃæºÐÈ÷ ¹°¼Ó¿¡ Àá±æ ¼ö ÀÖ´Â ¼ö½ÉÀÌ ÇÊ¿äÇÑ °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù.
The local migration or movement behavior of fishes in streams are related to feeding, spawning, growing, dispersing, and refuging. The pale chub (Zacco platypus) is a dominant species that migrates locally and inhabits in river and stream in Korea. However, dams, weirs, culverts and other regulatory structures are physical barriers that limit fish movement and fragment habits and populations. If main stream and off-channel habitats are connected with culverts, they would restrict the small fish as pale chub movement due to the high flow velocities and low depths. But in Korea, there is no experimental study to evaluate the swimming performance of species in Korea. Therefore, it is difficult to proposed that design guidelines for pass fishes through culverts. The purpose of this experimental study is to evaluate the swimming performance of pale chubs. A series of swimming performance test has been used in both of the fixed velocity and the incremental velocity methods in an experimental flume. As a result, the critical swimming speed for pale chub(body length 8.9 cm) was found to be about 0.7 m/s. Therefore, the flow velocity for culvert design in the low flow condition should not be exceed the its swimming ability, especially 0.7 m/s for pale chubs(body length 8.9 cm). And the minimum depth for culvert design in the low flow condition should not be lower than the fish body height add a dorsal fin height.
 
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ÇǶó¹Ì;À¯¿µÆ¯¼º;ÇѰèÀ¯¿µ¼Óµµ;¹è¼ö¾Ï°Å ¼³°èÀ¯¼Ó;Pale chub;Swimming performance;Critical swimming speed;The flow velocity for culvert design;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.4, 2008³â, pp.423-432
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814264574500)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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