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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.20, no.3, 2002³â, pp.245-255
Çѱ¹»ê »ìÁ¶°³, Protothaca jedoensisÀÇ »ý½ÄÁÖ±â
( Reproductive Cycle of Venus Clam, Protothaca jedoensis(Bivalvia: Veneridae) in Korea )
±èÁ¤;À±È£¼·;¶ó¼ºÁÖ;¹®¼º¿ë;¼­È£¿µ;ÃÖ±ÔÁ¤;ÃÖ»ó´ö; ¿©¼ö´ëÇб³ ¼ö»êÁõ¾ç½Ä¿¬±¸¼¾Å¸;¿©¼ö´ëÇб³ ¾ç½ÄÇаú;¿©¼ö´ëÇб³ ¾ç½ÄÇаú;¿©¼ö´ëÇб³ ¾ç½ÄÇаú;¿©¼ö´ëÇб³ ¼ö»ê°úÇבּ¸¼Ò;¿©¼ö´ëÇб³ ¾ç½ÄÇаú;¿©¼ö´ëÇб³ ¼ö»êÁõ¾ç½Ä¿¬±¸¼¾Å¸;
 
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Çѱ¹»ê »ìÁ¶°³ (Protothaca jedoensis)ÀÇ »õ·Î¿î »ê¾÷È­ ¾ç½ÄǰÁ¾À¸·Î °³¹ßÇϱâ À§ÇÑ ±âÃÊÀڷḦ ¾ò±â À§ÇÏ¿© 1998³â 9¿ùºÎÅÍ 1999³â 8¿ù±îÁö ÁÖ·Î Á¶Á÷ÇÐÀû ¹æ¹ý¿¡ ÀÇÇØ »ý½Ä¼ÒÀÇ ¹ß´Þ°úÁ¤°ú »ý½ÄÁֱ⸦ Á¶»çÇÏ¿´´Ù. »ìÁ¶°³´Â ÀÚ¿õÀÌü·Î¼­, »ý½Ä¼Ò´Â ÇØºÎÇÐÀûÀ¸·Î ¼ÒÈ­¸Í³¶°ú Á·ºÎ±ÙÀ° »çÀÌ¿¡ À§Ä¡ÇÏ¿´´Ù. ³­¼Ò¿Í Á¤¼Ò´Â °¢°¢ ³­ÀÚÇü¼º¼Ò³¶°ú Á¤ÀÚÇü¼º¼Ò³¶À¸·Î ±¸¼ºµÇ¾î ÀÖ¾ú´Ù. ºñ¸¸µµ´Â 2¿ù¿¡ 20.6·Î °¡Àå ³ô¾ÒÀ¸¸ç 8¿ù¿¡ ÃÖ¼Ò°ª (9.6)À» º¸¿´´Ù. ±º¼º¼÷µµÀÇ °æ¿ì, »ý¹°ÇÐÀû ÃÖ¼ÒÇüÀº °¢ Àå 38.4 mm·Î ³ªÅ¸³µ´Ù. ¼º¼÷ÇÑ ³­¸ð¼¼Æ÷ÀÇ Å©±â´Â $50-60mu{m}$¿´À¸¸ç, ¼º¼÷±âÀÇ Á¤¼Ò¿¡¼­ Á¤¼Ò¶õÀÌ °üÂûµÇ¾ú´Ù. »ìÁ¶°³ÀÇ »ý½ÄÁÖ±â´Â Ãʱâ Ȱ¼º±â(12-2¿ù), Èıâ Ȱ¼º±â (1-4¿ù), ¿Ï¼÷±â (3-7¿ù), ºÎºÐ »ê¶õ±â (6-8¿ù), ÅðÈ­ ¹× ºñȰ¼º±â(7-l¿ù)ÀÇ ¿¬¼ÓÀûÀÎ 5´Ü°è·Î ±¸ºÐµÇ¾ú´Ù.
In order to obtain the basic information for seedling production of venus clam, Protothaca jedoensis, the annual reproductive cycle was investigated mainly by histological observation from September 1998 to August 1999. P. jedoensis was dioecious. The gonads are located between the digestive diverticula and muscle tissue of the foot. The ovary was composed of a number of ovarian sacs, and the testis was composed of several testicular tubules. The condition index was reached its maximum (20.0) in February, and then decreased to 11.5 in June. In August, the value was the lowest (9.0) and then increased slowly. Minimum size for the sexual maturation of individuals were 38.4 mm in shell length. One the other hand, the size of mature oocytes was ranged to $50-60mu{m}$ in diameter and testis-ova was observed in testis of the mature stage. The reproductive cycle of P. jedoensis could be classified into five successive stages: early active (December to February), late active (January to April), ripe (March to July), partially spawned (June to August) and spent/inactive (July to January) stages.
 
Ű¿öµå
venus clam;Protothaca jedoensis, Reproductive cycle;
 
ȯ°æ»ý¹° / v.20, no.3, 2002³â, pp.245-255
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921492772)
¾ð¾î : Çѱ¹¾î
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