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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.2, 2003³â, pp.17-208
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±¹³»»ê ¹°º­·èÀÇ ¹è¾çÁ¶°Ç¿¡ µû¸¥ °³Ã¼ »ý»êƯ¼ºÀ» ºñ±³Çϰí ÃÖÀû ¹è¾çȯ°æ Á¶°ÇÀ» µµÃâÇϱâ À§ÇÏ¿© ¹è¾çÁ¶°Ç¿¡ µû¸¥ ¹°º­·èÀÇ °³Ã¼»ý»êƯ¼ºÀ» Á¶»çÇÏ¿´´Ù. Daphnia magna, D. pulex, Moina macrocopa´Â Åðºñ¸¦ ÀÌ¿ëÇÑ ¹è¾ç¾×À¸·Î ¹è¾çÇÏ´Â °ÍÀÌ »ýÁ¸±â°£°ú °³Ã¼ ¹ß»ý ¼ö Ãø¸é¿¡¼­ °¡Àå È¿°ú°¡ ÁÁ¾ÒÀ¸¸ç D. galeata´Â À̿ʹ ´Þ¸® ºñ·á¸¦ ÀÌ¿ëÇÑ ¹è¾ç¾×¿¡¼­ °¡Àå ¼ºÀå·üÀÌ ÁÁ¾Ò´Ù. D. galeata´Â Àü¹ÝÀûÀ¸·Î ¹è¾çÀÌ ¾î·Á¿üÀ¸¸ç ¹è¾ç±â°£ µ¿¾ÈÀÇ »õ³¢ ¹ß»ýµµ Àû¾î Àΰø ¹è¾ç½Ã¿¡ »ó´çÇÑ °ü½ÉÀÌ ¿ä±¸µÇ¾ú´Ù. ³²Á¶·ù Microcystis sp.ÀÇ microcystinÀ̶ó´Â µ¶¼Ò´Â Æ÷À¯·ù¸¦ ºñ·ÔÇÑ ¿©·¯ »ý¹°¿¡°Ô Á÷Á¢ÀûÀÎ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ¹àÇôÁ³À¸³ª ±Ý¹ø ½ÇÇè¿¡¼­´Â ¹°º­·èÀÇ »ýÁ¸¿©ºÎ¿¡ ´ëÇØ¼­´Â µ¶¼ÒÀÇ ¿µÇâÀÌ Å©°Ô ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ¶ÇÇÑ ³²Á¶·ù Microcystis sp.¸¦ °ø±Þ¹Þ´Â ¹°º­·èÀº Á¦ÇÑµÈ ¸ÔÀÌ Á¦°øÀ¸·Î ÀûÀº ¾çÀÇ Microcystis sp.¸¦ ºÒ°¡ÇÇÇÏ°Ô ¼·ÃëÇÔÀ¸·Î½á »ó´ëÀûÀ¸·Î »ýÁ¸±â°£ÀÌ Âª¾ÒÀ¸¸ç °³Ã¼ »ý»êÀ²µµ ³·¾Ò´Ù. Scenedesmus sp.¸¦ ¸ÔÀÌ·Î °ø±ÞÇÑ °æ¿ì´Â ¹°º­·èÀ¸ Á¾·ù¿Í ¹è¾ç¾×ÀÇ Á¾·ù¿¡ »ó°ü¾øÀÌ Microcystis sp.¸¦ ¸ÔÀÌ·Î °ø±ÞÇÑ °æ¿ìº¸´Ù »ýÁ¸±â°£ÀÌ ±æ°í °³Ã¼¹ß»ý¼öµµ ¸¹¾Ò´Ù. °¢ ¹°º­·èÀº 20¡É¿¡¼­ º¸´Ù ´õ »ýÁ¸±â°£ÀÌ ±æ°í ´õ ¸¹Àº °³Ã¼¸¦ ¹ß»ýÇÏ¿© ¹°º­·è ¹è¾çÀº 15¡Éº¸´Ù 20¡É°¡ ÀûÀýÇÔÀÌ È®ÀεǾú´Ù. ÀÌ·¯ÇÑ °á°ú¸¦ Åä´ë·Î º¼ ¶§ D. galeata¿Í M. macrocopa´Â ¹°º­·èÀ» ÀÌ¿ëÇÑ ¼öÁú°¨½Ã¿Í µ¶¼º½ÇÇè¿¡ »ç¿ëÇϱ⿡ ¾î·Á¿òÀÌ ¸¹Àº Á¾ÀÌ¸ç ±âÁ¸¿¡ »ç¿ëÇϰí ÀÖ´Â D. magna¿Í ±¹³»¿¡¼­µµ ºÐÆ÷Çϰí ÀÖ´Â D. pulex¸¦ »ç¿ëÇÏ´Â °ÍÀÌ ¿ëÀÌÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
Four species of water fleas (Daphnia magna, Daphnia pulex, Daphnia galeata, and Moina macrocopa) were examined for the clarification of their reproduction with culture conditions. The reproduction tests of water flea by the culture conditions were carried out. For the comparison of the reproduction rate, five media (manure-soil medium, DIN medium, M4 medium, EPA medium, fertilizer medium) were applied to determine the best medium. Daphia magna, Daphnia pulex, and Moina macrocopa were appeared the best reproduction in the manure-soil medium at 20¡É. The lifespan and young reproduction were better in manure-soil medium than the others. But Daphnia galeata was lived for 34 days in the fertilizer medium at 20¡É. The culture of Daphnia galeata was difficult to rear than the other species. In the current study, the microcystin of microcystis sp. did not particularly affect on the survival of water fleas. But the lifespan was short and the reproduction rate was low. Therefore water flea have a preference for Scenedesmus sp. than Microcystis sp. On the condition of the feeding Scendesmus sp., all examined water fleas appeared to have the longest lifespan and the most young water fleas produced at any medium and temperature as compared with the feeding the Microcystis sp. For the culture temperature, the lifespan was longer on 20¡É than 15¡É.
 
Ű¿öµå
water flea;reproduction;culture condition;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.2, 2003³â, pp.17-208
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200310102402096)
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