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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.1, 2008³â, pp.104-110
¹ÌÈ£Á¾°³ Iksookimia choii (Cobitidae)ÀÇ ³­ ¹ß»ý ¹× ÀÚ¾î ÇüÅ ¹ß´Þ
( Morphological Development of Egg and Larvae of Iksookimia choii (Cobitidae) )
¼ÛÇÏÀ±;±è¿ìÁß;À̿ϿÁ;¹æÀÎö; ¼øÃµÇâ´ëÇб³ ÇØ¾ç»ý¸í°øÇаú;¼øÃµÇâ´ëÇб³ ÇØ¾ç»ý¸í°øÇаú;±¹¸³¼ö»ê°úÇпø Áߺγ»¼ö¸é¿¬±¸¼Ò;¼øÃµÇâ´ëÇб³ ÇØ¾ç»ý¸í°øÇаú;
 
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¸êÁ¾À§±â ¾ß»ýµ¿½Ä¹°À̸鼭 õ¿¬±â³ä¹°ÀÎ ´ã¼ö¾î·ù ¹ÌÈ£Á¾°³ÀÇ ³­¹ß»ý °úÁ¤ ¹× Ãʱ⠻ýȰ»ç¸¦ ¿¬±¸ÇÏ¿´´Ù. ¼º¼÷¶õÀº Àΰ£ ¼º¼± ÀÚ±ØÈ£¸£¸ó(HCG) 10 IU $g^{-1}$À» ÁÖ»çÇÏ¿© ¾ò¾úÀ¸¸ç, ½À½Ä¹øÀ¸·Î ¼öÁ¤ÇÏ¿´´Ù ¼öÁ¤¶õÀº ¿øÇüÀ¸·Î Åõ¸íÇÑ È²»öÀ» ¶è ħ¼º Á¡Âø¶õÀ̾úÀ¸¸ç, ¼öÁ¤¶õÀÇ Á÷°æÀº $1.1sim1.3mm$·Î À¯±¸´Â Á¸ÀçÇÏÁö ¾Ê¾Ò´Ù. ºÎÈ­´Â ¼ö¿Â Æò±Õ $25^{circ}$¿¡¼­ ¼öÁ¤ ÈÄ 24½Ã°£À» ÀüÈÄÇÏ¿© ½ÃÀÛÇÏ¿´´Ù. ºÎÈ­ Á÷ÈÄ ÀÚ¾î´Â Àü°¢ÀÌ $2.5sim2.7mm$ (Æò±Õ 2.8 mm)·Î ÀÔ°ú Ç×¹®Àº ´ÝÇôÀÖ¾ú´Ù. ºÎÈ­ ÈÄ 6Àϰ ÀÚ¾î´Â ÀüÀåÀÌ $4.7sim5.4mm$(Æò±Õ 5.1mm)·Î ²¿¸® ³¡ºÎºÐ ô»öÀÌ $45^{circ}$·Î ¿ÏÀüÇÏ°Ô ±Á¾î Èıâ ÀÚ¾î·Î ÀÌÇàÇÏ¿´´Ù. ºÎÈ­ ÈÄ 35Àϰ °³Ã¼ÀÇ ÀüÀåÀº $20sim22mm$ (Æò±Õ 21.8 mm)·Î ¸ðµç Áö´À·¯¹Ì °¡½Ã¿Í ÁٱⰡ Á¤¼ö¿¡ ´ÞÇÏ¿© Ä¡¾î ´Ü°è·Î ÀÌÇàÇÏ¿´´Ù.
The egg development and early life history of Korean endangered natural monument fish, Iksookimia choii, were investigated in 2006. The eggs from the females were obtained by injecting 10 IU $g^{-1}$ of human chorionic gonadotropin and inseminated by wet method in the laboratory. The fertilized eggs were $1.1sim1.3mm$ in diameter and had no oil globules. Hatching of the embryo began about 24 hrs after fertilization under water temperature of $25^{circ}C$. The newly-hatched larvae were $2.5sim2.7mm$ in total length (TL), and their mouth and anus were not yet opened. Six days after hatching, the postlarvae were $4.7sim5.4mm$ TL, and tip of the caudal notochord was flexed $45^{circ}$ upward. The juveniles stage was reached when all fin-rays were formed at 35 days after hatching, and their total length were $20sim22mm$.
 
Ű¿öµå
endangered fish;Iksookimia choii;egg development;early life history;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.1, 2008³â, pp.104-110
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200817154059302)
¾ð¾î : Çѱ¹¾î
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