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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.22, no.3, 2004³â, pp.419-425
»çÀ°¼öÀÇ ´ã¼öÈ­½Ã ¼ö¿ë¹Ðµµ¿¡ µû¸¥ ³ÒÄ¡(Paralichthys olivaceus)ÀÇ »ý¸®Àû ¹ÝÀÀ ºñ±³
( Physiological Responses of Olive Flounder (Paralichthys olivaceus) by Capacity Density Difference during Salinity Change from Seawater to Freshwater )
ÇãÁØ¿í;À̺¹±Ô;¹Îº´È­;¹ÚÀμ®;ÃÖö¿µ;ÀÌÁ¤¿­;À念Áø; Çѱ¹Çؾç´ëÇб³ ÇØ¾ç°úÇбâ¼ú¿¬±¸¼Ò;µ¿ÀÇ´ëÇб³ »ý¹°Çаú;ºÎ°æ´ëÇб³ ¾ç½ÄÇаú;Çѱ¹Çؾç´ëÇб³ ÇØ¾ç°úÇкÎ;Çѱ¹Çؾç´ëÇб³ ÇØ¾ç°úÇкÎ;±º»ê´ëÇб³ ÇØ¾ç»ý¸í°úÇкÎ;ºÎ°æ´ëÇб³ ¾ç½ÄÇаú;
 
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»çÀ°¼öÀÇ ´ã¼öÈ­½Ã ¼ö¿ë¹Ðµµ¿¡ ´ëÇÑ »ý¸®ÇÐÀû ¹ÝÀÀÀ» ºñ±³ÇϰíÀÚ, 30¸¶¸®¿Í 60¸¶¸®¾¿ ½ÇÇè¼öÁ¶¿¡ ¼ö¿ëÇÏ¿© 30ºÐÀ̳»¿¡ »çÀ°¼ö¸¦ ´ã¼ö·Î ±³È¯ÇÏ¿´´Ù. Ç÷ÀåÀÇ Cortisol ³óµµ´Â ½ÇÇè°³½Ã½Ã 30SW¿¡¼­ $2.8;ng;mL^{-1}$,60SW´Â $2.7;ng;mL^{-1}$·ÎºÎÅÍ 30FW¿Í 60FW´Â 24½Ã°£Â° °¢°¢ $66.9;ng;mL^{-1}$, $314.1;ng;mL^{-1}$·Î À¯ÀÇÇÏ°Ô ³ô¾ÆÁ³´Ù. Ç÷ÀåÀÇ Glucose³óµµ´Â 60SW´Â °³½Ã½Ã $15.8;mg;dL^{-1}$·ÎºÎÅÍ 60FW´Â 3½Ã°£Â° $257.7;mg;dL^{-1}$, 24½Ã°£Â° $164.0;mg;dL^{-1}$·Î °³½Ã½Ãº¸´Ù ³ôÀº °ªÀ¸·Î ³²¾ÆÀÖ¾ú´Ù. $Na^+$ ³óµµ´Â 30SW¿Í 60SW´Â ½Ã°£°æ°ú¿¡ µû¶ó Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸³ª, 30FW¿Í 60FW´Â ½Ã°£°æ°ú¿¡ µû¶ó ³·¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. $Cl^-$³óµµ´Â 60FW¿¡¼­ °³½Ã½Ã $59.0;mEq;L^{-1}$·ÎºÎÅÍ 3½Ã°£°ú 24½Ã°£Â°¿¡ °¢°¢ $43.5;mEq;L^{-1}$, $30.0;mEq;L^{-1}$·Î À¯ÀÇÇÏ°Ô ³·¾ÆÁø °ªÀ» º¸¿´´Ù. ¸ðµç ½ÇÇ豸¿¡¼­ »ýÁ¸À²Àº 100%¿´´Ù. »çÀ°¼ö¸¦ 24½Ã°£µ¿¾È ´ã¼ö·Î ±³È¯½Ã »çÀ°¹ÐµµÀÇ Â÷ÀÌ¿¡ µû¸¥ Ç÷Àå°ú Ç÷¾×ÇÐÀû ÁöÇ¥¿¡¼­ ´Ù¼Ò Â÷À̸¦ ³ªÅ¸³ÂÀ¸¸ç, »ïÅõ¾Ð Á¶Àý ´É·Â ¹× »ýÁ¸À²¿¡¼­´Â ÇØ¼ö¿¡¼­¿Í °°Àº °æÇâÀ» º¸¿´´Ù.
Two different groups (30 and 60 inds.) of olive flounder (Paralichthys olivaceus) were abruptly (within 30 min) exposed to hypo-salinities from seawater (SW, 35$ extperthousand$) to freshwater (FW, 0$ extperthousand$) (30FW and 60FW) and to 35$ extperthousand$ (30SW and 60SW) in a flow through seawater culture systems. Analysis of plasma samples showed the following significant increase at 0$ extperthousand$: cortisol from $2.8;ng;mL^{-1}$ to $66.9;ng;mL^{-1}$ (30FW) and from $2.7;ng;mL^{-1}$ to $314.1;ng;mL^{-1}$ (60FW) after 24 hours of exposure; glucose from $15.8;mg;dL^{-1}$ to $257.7;mg;dL^{-1}$ after 3 hours exposure and to $164.0;mg;dL^{-1}$ after 24 hours in 60FW. Plasma $Na^+$ concentration of 30FW and 60FW were decreased until 24 hours after expose. However that in 30SW and 60SW showed no significant differences. Plasma $Cl^-$ concentration of 60FW was decreased from $59.0;mEq;L^{-1}$ to $43.5;mEq;L^{-1}$ and to $30.0;mEq;L^{-1}$ after 3 and 24 hours of exposure, respectively. At all experimental groups, survival were 100% until 24 hours.
 
Ű¿öµå
Paralichthys olivaceus;flounder;hypo-salinity;stress response;cortisol;
 
ȯ°æ»ý¹° / v.22, no.3, 2004³â, pp.419-425
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200412910473959)
¾ð¾î : Çѱ¹¾î
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