|
|
|
Çѱ¹ÇÏõȣ¼öÇÐȸ / v.44, no.3, 2011³â, pp.264-271
|
ÀåÈï´ï¿¡ ¼³Ä¡µÇ¾î ÀÖ´Â ¾îµµ¿Í ´ã¼ö¾î·ùÀÇ ÀÌ¿ë ºÐ¼®
( Freshwater Fish Utilization of Fishway Installed in the Jangheung Dam ) |
| À±ÁÖ´ö;±èÁ¤Èñ;ÁÖ±âÀç;¼Áø¿ø;;Àå¹ÎÈ£; ºÎ»ê´ëÇб³ ȯ°æ±â¼ú»ê¾÷°³¹ß¿¬±¸¼¾ÅÍ;°øÁÖ´ëÇб³ »ý¹°±³À°°ú;ºÎ»ê´ëÇб³ »ý¸í°úÇаú;;°øÁÖ´ëÇб³ ¿µ¾î±³À°°ú;°øÁÖ´ëÇб³ »ý¹°±³À°°ú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ´ïÀ̳ª º¸¿Í °°Àº ÇÏõ³» ±¸Á¶¹°ÀÇ °Ç¼³½Ã ¾îµµÀÇ ¼³Ä¡´Â ¾î·ùÀÇ À̵¿¿¡ ÀÖ¾î¼ Áß¿äÇÑ ¿ªÇÒÀ» ÇÑ´Ù. ŽÁø°¿¡ °Ç¼³µÇ¾î ÀÖ´Â ÀåÈï ´Ù¸ñÀû´ï¿¡´Â ¾î·ùÀÇ »ó·ù·Î À̵¿À» ¿øÈ°È÷ Çϱâ À§ÇØ ¿¤¸®º£ÀÌÅÍ½Ä ¾îµµ¿¡ Æ÷ÇԵǴ Ʈ·°½Ä ´ïü¾îµµ°¡ ¹æ·ù±¸ ¿·ÂÊ¿¡ À§Ä¡Çϰí ÀÖ´Ù. ÀÌ·¯ÇÑ Á¾·ùÀÇ ¾îµµ´Â È¿À²ÀûÀ¸·Î ¾î·ù¸¦ Æ÷ÁýÇϱâ À§ÇÑ Æ®·¦ÀÌ ÇÔ²² ¼³Ä¡µÈ´Ù. º» ¿¬±¸¿¡¼´Â ÀåÈï´ï¿¡ ¼³Ä¡µÇ¾î ÀÖ´Â ¾îµµ Æ®·¦ÀÇ ¾î·ù ÀÌ¿ëÁ¤µµ¸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© PIT telemetry ¹æ½ÄÀ» Àû¿ë, ÃÑ 15Á¾ 254°³Ã¼ÀÇ ¾î·ù¿¡ tagÀ» »ðÀÔÇÏ¿© ¸ð´ÏÅ͸µÀ» ÇÏ¿´´Ù. ºØ¾î, ¶±ºØ¾î, µ¹°í±â, °¥°Ü´Ï, ÇǶó¹Ì, ´«µ¿ÀÚ°³ 6Á¾ 36°³Ã¼°¡ °¨ÁöµÇ¾î 14.2%ÀÇ °¨ÁöÀ²À» ³ªÅ¸³Â´Ù. ºØ¾î°¡ 43°³Ã¼ Áß 19°³Ã¼°¡ °¨ÁöµÇ¾î 44.2%·Î °¡Àå ³ôÀº °¨Áö ºñÀ²À» º¸¿´°í µ¹°í±â´Â 14.3%ÀÇ ºñÀ²À» ³ªÅ¸³ÂÀ¸¸ç, °¥°Ü´Ï¿Í ÇǶó¹Ì´Â °¢°¢ 5%¿Í 7.7%ÀÇ °¨Áö ºñÀ²À» ³ªÅ¸³Â´Ù. ÀϺΠ°³Ã¼µéÀº Çѹø¿¡ ¾îµµ³»·Î À̵¿ÇÏÁö ¾Ê°í Àå±â°£¿¡ °ÉÃÄ ²ÙÁØÈ÷ ½ÅÈ£°¡ °¨ÁöµÇ¾ú´Ù. À̵¿ÇÑ °³Ã¼µé°ú À̵¿ÇÏÁö ¾ÊÀº °³Ã¼µé »çÀÌ¿¡ Å©±â (ÀüÀå, üÀå, üÁß)´Â Â÷À̰¡ ¾ø¾úÀ¸¸ç(Mann-Whitney U test, p>0.05), ÁÖ·Î ´ï¿¡¼ ¹æ·ù°¡ ÀÌ·ç¾îÁö´Â ½Ã°£¿¡ Æ®·¦À¸·Î À̵¿ÇÏ´Â °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù (Mann-Whitney U test, p<0.001). ½Ã°£´ëº° ºÐ¼®¿¡¼´Â ÁÖ·Î ¾ß°£½Ã°£´ëº¸´Ù ÁÖ°£½Ã°£´ë¿¡¼ ´õ ³ôÀº °¨Áöºóµµ¸¦ º¸¿´´Ù(Mann-Whitney U test, p<0.001). º» ¿¬±¸ÀÇ °á°ú¿¡ ÀÇÇϸé, ¾î·ù°¡ Æ®·¦À¸·Î À̵¿ÇÏ´Â µ¥´Â ¹æ·ù½Ã°£°ú °°Àº ¿ÜÀûÀÎ ¿ä¼Ò¿Í °¢ Á¾º° »ýÅÂÀû Ư¼º(»ê¶õ±â, ÁÖÇ༺, ¾ßÇ༺)ÀÌ Áß¿äÇÑ ¿ªÇÒÀ» Çϰí ÀÖ¾ú´Ù. µû¶ó¼ ¾î·ùÀÇ ¾îµµ ÀÌ¿ëÀ²À» ³ôÀ̱â À§Çؼ´Â ¾î·ùÀÇ »ýÅÂÀû Ư¼ºÀ» °í·ÁÇÏ¿© ¹æ·ù·®°ú ´õºÒ¾î ¹æ·ù½Ã°£, ¹æ·ù½Ã°£´ë¸¦ ÀûÀýÇÏ°Ô º¯È½ÃŰ´Â Àü·«Àû ¹æ·ù°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
|
| At the Jangheung multipurpose dam, which is on the Tamjin River, a trapping and trucking operation was established to maintain continuous upstream migration of fish,. To facilitate fish gathering, installation of an effective fishing trap was required. In this study, we evaluated the fish trap, established at the Jangheung dam, using PIT (Passive Integrated Transponder) telemetry. A total of 254 individuals from 15 species were monitored. Among these tagged species, 36 individuals from 6 species (Carassius auratus, C. cuvieri, Zacco temminckii, Z. platypus, Pungtungia herzi, and Pseudobagrus koreanus) were detected; a 14.2% detection rate. C. auratus recorded the highest detection rate of 44.2% while P. herzi was 14.3%. Z. temminckii and Z. platypus showed relatively low detection, 5% and 7.7% respectively. Some of individuals from C. auratus and Z. platypus did not pass through the antenna at the first attempt but were continuously detected on multiple days. There were no statistical differences in body size (total length, standard length and body weight) of individuals that did or did not swim into the trap (Mann-Whitney U test, p>0.05). Fish mainly swam into the trap during outflow of water from the dam (Mann-Whitney U test, p<0.001) and showed a higher detection frequency in daytime than nighttime (Mann-Whitney U test, p<0.001). Thus, for fish movement into the trap, external factors such as outflow from dam and time of day have important roles. Based on detection rate, not all fishes showed upstream migration but represented selective migration. Consequently, the establishment of flexible outflow strategies that take into consideration ecological characteristics of fishes should required for improving the efficiency of fishway. |
| |
| Ű¿öµå |
| fishway;PIT telemetry;utilization rate;outflow;ecological characteristics; |
| |
|
|
 |
|
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.44, no.3, 2011³â, pp.264-271
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201102539848387)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|