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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.18, no.4, 2000³â, pp.377-385
pH ÀúÇϰ¡ ¼Ò¹é¿·»õ¿ì(Gammarus sobaegensis Ueno)¿¡ ¹ÌÄ¡´Â ±Þ, ¸¸¼º »ýŵ¶¼ºÇÐÀû Ư¼º -1. Á¤Ã¼¼º Á¶°Ç-
( Ecotoxicological Characteristics of Gammarus sobaegensis Ueno by Acute and Chronic pH Depression on Artificial Static Waters )
¹ÚÁ¤È£;Á¶µ¿Çö;Á¤±Ù; °­¿ø´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇкΠ»ý¹°ÇÐÀü°ø;°­¿ø´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇкΠ»ý¹°ÇÐÀü°ø;°­¿ø´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ ÀÚ¿ø»ý¹°È¯°æºÎ;
 
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ÀÎÀ§ÀûÀÎ »ê¼º½ºÆ®·¹½º°¡ ´ã¼ö»ê ¼Ò¹é¿·»õ¿ì(Gammarus sobaegensis Ueno)¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¤Ã¼¼º ¼öÁ¶°Ç ÇÏ¿¡¼­ ±Þ, ¸¸¼º »ýŵ¶¼º½ÇÇèÀ» ÅëÇØ ¾Ë¾Æº¸¾Ò´Ù. ±Þ¼ºµ¶¼º ½ÇÇè ½Ã pH 3 ´ë¿ª¿¡¼­ÀÇ ¹Ý¼öÄ¡»ç½Ã°£($LT_{50}$)Àº Æò±Õ 0.271($pm$0.146)day·Î °³Ã¼ÀÇ Å©±â ¶Ç´Â ¸ÔÀÌÀÇ À¯¹« ±×¸®°í ÁÖº¯ ȯ°æ¿¡ ´ëÇÑ ÀûÀÀ´É·Â¿¡ °ü°è¾øÀÌ ÀÏÁ¤ÇÑ ¸ð½ÀÀ» ³ªÅ¸³»°í ÀÖ¾ú´Ù. pH4.0´ë¿ª¿¡¼­ÀÇ $LT_{50}$Àº 0.812($pm$0.377) day·Î ¿¬ÀåµÇ´Â °ÍÀÌ È®ÀεǾú´Ù. ¸¸¼º µ¶¼º½ÇÇèÀÇ °æ¿ì º» Á¾ÀÇ ¹Ý¼öÄ¡»ç½Ã°£Àº pH 3.0ÀÏ ¶§ ¾à 6-7 day·Î Æò±Õ 6.313 ($pm$0.828) day ÀÎ °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, pH 5.0ÀÏ ¶§´Â Æò±Õ 9.475($pm$4.881)dayÀÇ ¿À·£ ÀûÀÀ ±â°£À» °®´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ÀÌ·¯ÇÑ Â÷ÀÌ´Â ¸ÔÀÌÀÇ °ø±ÞÀ¯¹«¿¡ µû¶ó º¯µ¿ÀÌ ÀÖ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú°í, ¶ÇÇÑ ÁÖº¯ ȯ°æ¿¡ ÀûÀÀÀÌ Àß µÈ °³Ã¼Àϼö·Ï ¿À·£ ±â°£µ¿¾È »ýÁ¸ÇÑ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ±×¸®°í ±Þ, ¸¸¼º pH½ºÆ®·¹½º°¡ °¡ÇØÁø ¼Ò¹é¿·»õ¿ì(G. sobaegensis)ÀÇ Á¦ 2¾Æ°¡¹Ì Ç¥¸éÁ¶Á÷¿¡¼­ ½ÉÇÑ ÁÖ¸§Çö»óÀ» È®ÀÎÇÒ ¼ö ÀÖ¾î, °á±¹ »ê¼º½ºÆ®·¹½º´Â ¼Ò¹é¿·»õ¿ì(G. sobaegensis)¿¡ À־ ±Þ¼º»Ó¸¸ ¾Æ´Ï¶ó ¸¸¼ºÀûÀÎ ¿µÇâ¿¡¼­µµ ÃÖÁ¾ÀûÀ¸·Î´Â ¸Å¿ì Ä¡¸íÀûÀ¸·Î ÀÛ¿ëÇÑ´Ù´Â »ç½ÇÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study was carried out to investigate the ecotoxicological response on Gammarus sobaegensis Ueno with acid stress. Mean value of $LT_{50}$ (lethal time 50%) under pH 3 condition as acute ecotoxicity test was observed to be 0.271 ($pm$0.146) day. And 0.812 ($pm$0.377) day under pH 4, respectively. Mean value of $LT_{50}$ under pH 3 and 5 were 6.313 ($pm$0.828), and 9.475 ($pm$4.881) day, respectively. Variance in chronic ecotoxicity test pH (F ratio: 11.240, P< 0.0005) and times (F ratio: 2.916, P< 0.0005) as single factor were revealed to be the major factor for determining LT$_{50}$ with acid depression. The variation of secondary gill surface with acid stress to be certain that wrinkle phenomenon. Being weak tolerance of G. sobaegensis against the acid stress, it shows the possibility to be examined as an aquatic toxicity test organism.
 
Ű¿öµå
Acid stress;Ecotoxicity test;LT$_{50}$;Gill surface;Gammarus sobaegensis;
 
ȯ°æ»ý¹° / v.18, no.4, 2000³â, pp.377-385
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011921491976)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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