|
|
|
Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.4, 2000³â, pp.395-404
|
¿Ö¸ô°³, Aphyocypris chinensisÀÇ »ý½ÄÁÖ±â
( Reproductive Cycle of the Venus Fish, Aphycypris chinensis ) |
| À̼º±Ô;Ãֽż®;¿°µ¿Çõ; Çѱ¹ÈÇבּ¸¼Ò ¾ÈÀü¼º¿¬±¸¼¾ÅÍ;Ãæ³²´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;Çѱ¹ÈÇבּ¸¼Ò ¾ÈÀü¼º¿¬±¸¼¾ÅÍ;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| 1997³â 3¿ùºÎÅÍ 1998³â 3¿ù±îÁö ÃæÃ»³²µµ ºÎ¿©±º ¼¼µµ¸é ¸ð¼¼¿Ã Áö¿ªÀÇ ³ó¼ö·Î¿¡¼ äÁýÇÑ ¿Ö¸ô°³, Aphyocypris chinensis¸¦ ´ë»óÀ¸·Î »ý½Ä»ýŸ¦ Á¶»çÇϱâ À§ÇÏ¿© ¿¬°£ »ý½Ä¼Ò¼÷µµÁö¼ö(GSI), °£¼÷µµÁö¼ö(HSI), ³°æÁ¶¼º°ú »ý½Ä¼Ò ¹ß´Þ°úÁ¤ ¹× ´Ù¸¥ ¹ø½ÄƯ¼ºµéÀ» Á¶»çÇÏ¿´´Ù. GSI º¯È, »ý½Ä¼ÒÀÇ ¹ß´Þ°úÁ¤ ¹× ³°æÁ¶¼º¿¡ ´ëÇÑ ºÐ¼®°á°ú, 1${sim}$2¿ùÀº Á¤Ã¼±â, 3${sim}$5¿ùÀº 2Â÷ ¼ºÀå±â ¹× ¼º¼÷±â, 6¿ù¿¡¼ 7¿ù »çÀÌ´Â ¿Ï¼÷ ¹× »ê¶õ±â, 8${sim}$9¿ùÀº ÅðÈ ¹× ÈÞÁö±â, 10${sim}$12¿ùÀº 1Â÷ ¼ºÀå±â·Î ³ªÅ¸³¾ ¼ö ÀÖ¾ú´Ù. HSI´Â ¿¬°£ 2°³ÀÇ ÇÇÅ©¸¦ ³ªÅ¸³ÂÀ¸¸ç GSIÀÇ º¯È¿Í´Â ¿ª»ó°ü °ü°è¸¦ º¸¿´´Ù. Á¶»çÁöÁ¡¿¡¼ÀÇ ¿Ö¸ô°³ ¾ÏÄÆÀÇ Æ÷¶õ¼ö´Â üÁß°ú 1Â÷ ÇÔ¼öÀûÀ¸·Î Áõ°¡ÇÏ¿´À¸¸ç (r$^{2}$ =0.91, n = 347), ¼ººñ´Â 1.4 : 1 (¾ÏÄÆ : ¼öÄÆ) À̾ú´Ù. »ý½Ä°¡´ÉÇÑ ÃÖ¼Ò Ã¼Àå(fork length) ¹üÀ§´Â ¾ÏÄÆ¿¡¼´Â 38 mm, ¼öÄÆ¿¡¼´Â 33mm·Î Á¶»çµÇ¾ú´Ù. |
|
| The gonadosomatic index (GSI), hepatosomatic Index (HSI), egg size distribution, gonad development and reproductive characteristics of venus fish, Aphyocypris chinensis, were examined during March 1997- March 1998 in agricultural waterways of the Sedo-myun, Puyo county, Chungnam Province, Korea. Annual reproductive cycle was classified into the following five successive phases by monthly changes in GSI and the characteristics of ovary: quiescent phase (January- February), secondary growing and mature phase (March-May), ripe and spawning phase (June-July), degenerating and resting phase (August-September) and primary growing phase (October-December). The hepatosomatic index (HSI) showed clear seasonal pattern with two separate peaks. However, it exhibited a negative correlation to changes of GSI values. The regression analysis suggested that fecundity showed a strong positive linear relationship ($r^2;=;0.91$, n = 34) with body weight. The sex ratio of female to male was 1.4 : 1 in the natural population during the study. The minimum reproductive size of female and male venus fish was 38 mm and 33 mm in fork length, respectively. |
| |
| Ű¿öµå |
| Aphyocypris chinensis;Reproductive cycle;Fecundity;Sex ratio;Biological minimum reproductive size; |
| |
|
|
 |
|
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.4, 2000³â, pp.395-404
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317176472)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|