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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.26, no.3, 2008³â, pp.138-144
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¿°ºÐ º¯È¿¡ µû¸¥ ÀÚ¹ÙÆ¿¶óÇǾÆ(Oreochromis mossambicus)ÀÇ »ê¼Ò¼Òºñ, ¾Æ°¡¹Ì È£Èí¼ö ¹× ¾Ï¸ð´Ï¾Æ ¹è¼³
( Oxygen Consumption, Operculum Movement Number and Ammonia Excretion of Cultured Tilapia (Oreochromis mossambicus) by Salinity Changes ) |
| ÀÌÃáÈñ;ÇÑ»ó¿ì;ÇãÁØ¿í;ÀÌÁ¤¿; ÃæÃ»³²µµ ³ó¸²¼ö»ê±¹;±º»ê´ëÇб³ ÇØ¾ç»ý¸í°úÇкÎ;±º»ê´ëÇб³ ÇØ¾ç»ý¸í°úÇкÎ;±º»ê´ëÇб³ ÇØ¾ç»ý¸í°úÇкÎ;
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| º» ¿¬±¸¿¡¼´Â ÀÚ¹ÙÆ¿¶óÇǾÆ(üÀå 10$pm$1.0cm, üÁß 173$pm$4.2g)¸¦ »ç¿ëÇÏ¿© ¿°ºÐÀÇ º¯È¿¡ µû¸¥ »ê¼Ò¼ÒºñÀ², ¾Æ°¡¹Ì È£Èí¼ö ¹× ¾Ï¸ð´Ï¾Æ ¹è¼³·üÀ» Á¶»çÇÏ¿´´Ù. ´ã¼ö(0 psu)¿¡¼ »çÀ°ÇÏ´ø ÀÚ¹ÙÆ¿¶óÇǾƸ¦ ¿°ºÐ 0(´ëÁ¶±¸), 3, 9. 15, 21 ¹× 32 psu·Î À̵¿ÇÏ¿´À» ¶§ ½Ã°£°æ°ú¿¡ µû¸¥ »ýÁ¸À²À» Á¶»çÇÏ¿´´Ù. ´Ü°èÀû ÀÎ ¿°ºÐº¯È´Â ´ã¼ö(0 psu, ´ëÁ¶±¸)·ÎºÎÅÍ ¿°ºÐÀ» 1ÀÏ 3psu¾¿ Áõ°¡½ÃÄÑ 3, 9, 15, 21 ¹× 32 psu°¡ µÇµµ·Ï Á¶ÀýÇÏ¿´´Ù. ±Þ°ÝÇÑ º¯È´Â °¢ »çÀ° ¿°ºÐ(0, 9, 15, 21, 32 psu)¿¡¼ °¢°¢ 4°³ÀÇ ´Ù¸¥ ¿°ºÐÀ¸·Î ¼øÈ ¾øÀÌ ¹Ù·Î ¿Å°Ü Á¶»çÇÏ¿´´Ù. º» ¿¬±¸°á°ú¿¡¼ ³ªÅ¸³ °©ÀÛ½º·± ¿°ºÐº¯È´Â 96½Ã°£ ¹Ý¼öÄ¡»ç³óµµ(96 hr-TL$_{50}$)´Â 23.3 psu·Î ³ªÅ¸³µ´Ù. ´Ü°èÀûÀ¸·Î ¿°ºÐÀ» ¿Å°åÀ» ¶§ 3 psu·ÎºÎÅÍ 27 psu±îÁö ¿°ºÐÁõ°¡¿¡ µû¶ó »ê¼Ò¼ÒºñÀ²°ú È£Èí¼ö´Â ³ô¾ÆÁö´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, 32 psu¿¡¼´Â 0 psuº¸´Ù ³·¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. ¾Ï¸ð´Ï¾Æ ¹è¼³·®Àº 15 psu¿¡¼ °¡Àå ³ôÀº ¹è¼³·üÀ» º¸À̰í 21 psuÀ̻󿡼´Â ºÒ±ÔÄ¢ÇÑ ¹è¼³·üÀ» º¸¿´´Ù. ÀÌ·¯ÇÑ °á°ú·Î º¼ ¶§, ´ã¼ö¿¡¼ 15 psu ÀÌ»óÀ¸·Î °©ÀÛ½º·± À̵¿Àº Ç×»ó¼º À¯Áö¿¡ ¹®Á¦°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ¿°ºÐ¿¡ ÀûÀÀ»çÀ°ÇÑ´Ù°í ÇÒ ¶§ 15 psu ÀÌÇÏ¿¡¼ ´Ü°èÀûÀÎ ¼øÈ¸¦ °ÅÃļ »çÀ°ÇÏ´Â °ÍÀÌ ¾ÈÀüÇÏ´Ù°í ÆÇ´ÜµÇ¾îÁø´Ù. |
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| The effects of salinity on oxygen consumption, operculum movement number and ammonia nitrogen excretion were examined in cultured tilapia, Oreochromis mossambicus (total length 10$pm$1.0 cm, total weight 17.3$pm$4.2 g). The fish were exposured to certain salinities (0, 3, 9, 15, 21, 27 and 32 psu) step by step with 3 psu$cdot$d$^{-1}$ and changed rapidly from certain salinity to another salinity. The oxygen consumption of the fish which was transferred step by step showed increasing tendency in the range of 3 $sim$ 27 psu, but markedly appeared very low value at 32 psu. The tolerance limit in tilapia by salinity change without acclimation was shown 23.3 psu from 96-h TL$_{50}$. The oxygen consumption, operculum movement and ammonia nitrogen excretion of fish which was transferred rapidly from certain salinity to each salinity (0, 9, 15, 21 and 32 psu) showed a changing point at 15 psu; they showed increasing and/or decreasing pattern before 15 psu, and showed decreasing pattern after 15 psu. From these results, it was concluded that the appropriate salinity without physiological change for Java tilapia was below 15 psu. |
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| Ű¿öµå |
| Tilapia;Oreochromis mossambicus;salinity change;oxygen consumption;ammonia excretion;operculum movement; |
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ȯ°æ»ý¹° / v.26, no.3, 2008³â, pp.138-144
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200820258465618)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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