|
|
|
Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.1, 2010³â, pp.82-90
|
´ã¼ö»ê ¾î·ù ²©Áö (Coreoperca herzi)ÀÇ ÀÚ¿ø Æò°¡ ¹× °ü¸® ¹æ¾È ¿¬±¸: ¼¶Áø° Áß.»ó·ù ¼ö°è¿¡¼ ²©ÁöÀÇ °³Ã¼±º »ýÅÂÇÐÀû Ư¼ºÄ¡ ÃßÁ¤ (1)
( A Study on the Stock Assessment and Management Implications of the Korean Aucha perch (Coreoperca herzi) in Freshwater: (1) Estimation of Population Ecological Characteristics of Coreoperca herzi in the Mid-Upper System of the Seomjin River ) |
| À强Çö;·ùÈñ¼º;ÀÌÁ¤È£; ´ë±¸´ëÇб³ »ý¹°±³À°°ú;´ë±¸´ëÇб³ »ý¹°±³À°°ú;´ë±¸´ëÇб³ »ý¹°±³À°°ú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸´Â ¼¶Áø° Áß »ó·ù ¼ö°èÀÇ ²©ÁöÀÚ¿ø¿¡ ´ëÇØ¼ ÀÚ¿øÆò°¡ÀÇ ±âÃÊ·Î »ç¿ëµÇ´Â ÀÚ¿ø»ýÅÂÇÐÀû Ư¼ºÄ¡µéÀ» ºÐ¼®ÇϰíÀÚ ÇÏ¿´´Ù. ¿¬·É»çÁ¤À» À§ÇÑ ¿¬·ÉÇüÁú·Î¼ À̼®(otolith)À» »ç¿ëÇÏ¿´À¸¸ç, ¿¬·É»çÁ¤ °á°ú, ÃÖ°í¿¬·ÉÀº 5¼¼·Î ³ªÅ¸³µ´Ù. üÀå(BL)°ú üÁß(BW)ÀÇ °ü°è½ÄÀº $BW=0.0195BL6{3.08}$($R^2=0.966$) À̾úÀ¸¸ç, À±¹®ÀÌ Çü¼ºµÇ¾úÀ» ¶§ÀÇ Ã¼ÀåÀ» ¿ª°è»êÇϱâ À§ÇÑ Ã¼Àå(BL)°ú À̼®°æ(R)°úÀÇ °ü°è½ÄÀº BL=3.882R+1.66($R^2=0.944$)·Î ³ªÅ¸³µ´Ù. ºñ¼±Çüȸ±Í¹æ¹ýÀ» ÀÌ¿ëÇÑ von Bertalanffy ¼ºÀå¸ðµ¨ÀÇ ¸Å°³º¯¼ö´Â ÀÌ·ÐÀû ÃÖ´ëüÀå($L_{infty}$)ÀÌ 19.68 cm, ÀÌ·ÐÀû ÃÖ´ëüÁß($L_{infty}$)ÀÌ 188.64 g, ¼ºÀå°è¼ö(K)°¡ 0.17, üÀåÀÌ 0 ÀÏ ¶§ÀÇ ¿¬·ÉÀÌ -1.46¼¼ µîÀ¸·Î °¢°¢ ÃßÁ¤µÇ¾ú´Ù. À̸¦ ÅëÇØ ÃßÁ¤µÈ ¼ºÀå½ÄÀº Lt=19.68(1-$e^{-0.17(t+1.46)}$)($R^2=0.997$)·Î ³ªÅ¸³µ´Ù. »ýÁ¸À²À» ÃßÁ¤ÇÏ´Â 6°¡Áö ¹æ¹ý Áß Æò¹æ¿ÀÂ÷ÇÕ(Sum of squared error: SSQ) ÀÌ °¡Àå ÀÛÀº ¾îȹ¹°°î¼±¹ýÀ» ÀÌ¿ëÇÏ¿© »ýÁ¸À²À» ÃßÁ¤ÇÏ¿´À¸¸ç, ÃßÁ¤µÈ »ýÁ¸À²(S)´Â $0.666;year^{-1}$À¸·Î È®ÀεǾú´Ù. ¼ø°£ÀÚ¿¬»ç¸Á°è¼ö(M)¿Í ¼ø°£Àü»ç¸Á°è¼ö(Z)´Â $0.346;year^{-1}$°ú $0.407;year^{-1}$·Î °¢°¢ ÃßÁ¤ µÇ¾úÀ¸¸ç, À̸¦ ÅëÇØ È®ÀÎµÈ ¼ø°£¾îȹ»ç¸Á°è¼ö(F)´Â $0.061;year^{-1}$·Î È®ÀεǾú´Ù. |
|
| The ecological characteristics of the Korean Aucha perch, Coreoperca herzi, were determined in order to estimate stock of the mid-upper system of the Seomjin River. The age was determined by counting the otolith annuli. The oldest fish observed in this study was 5 years old. Relationships between body length (BL) and body weight (BW) were $BW=0.0195BL^{3.08}$ ($R^2=0.966$) (p<0.01). Relationships between the otolith radius (R) and body length (BL) were BL=3.882R+1.66 ($R^2=0.944$). The von Bertalanffy growth parameters estimated from a non-linear regression method were $L_{infty}=19.68;cm$, $W_{infty}=188.64;g$, $K=0.17;year^{-1}$ and $t_0=-1.46$ year. Therefore, growth in length of the fish was expressed by the von Bertalanffy's growth equation as $L_t=19.68$ ($1-e^{-0.17(t+1.46)}$) ($R^2=0.997$). The annual survival rate (S) was estimated to be $0.666;year^{-1}$. The instantaneous coefficient of natural mortality (M) of estimated from the Zhang and Megrey method was $0.346;year^{-1}$, and instantaneous coefficient of fishing mortality (F) was calculated $0.061;year^{-1}$. From the estimates of survival rate (S), the instantaneous coefficient of total mortality(Z) was estimated to be $0.407;year^{-1}$. |
| |
| Ű¿öµå |
| Coreoperca herzi;ecological characteristics;otolith annuli;growth parameters;survival rate;natural mortality;fishing mortality; |
| |
|
|
 |
|
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.1, 2010³â, pp.82-90
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201023064630421)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|