우리나라 남해에 분포하는 붕장어(Conger myriaster )의 연령과 성장
Age and Growth of Whitespotted Conger Conger myriaster in the Southern Coastal Waters of Korea
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초록
Age and growth of whitespotted conger Conger myriaster were estimated using right sagittal otoliths from 495 fish collected from February, 2004, to January, 2005, in the southern coastal waters of Korea. Examination of the outer margin of the otoliths showed that opaque zones formed once a year and annual rings formed from April to June. The ages of the specimens examined ranged from 3 to 8 years. Whitespotted conger spawn from December to March. Allometry between preanal length and total weight can be expressed as TW=0.0350×PL^(2.9173) (R^2=0.89). There was no significant difference in allometry between females and males (P>0.05). The estimated VBF growth equation was L_t =415.2(1-e^(-0.1457(t+0.4654))).
Abstract
Age and growth of whitespotted conger Conger myriaster were estimated using right sagittal otoliths from 495 fish collected from February, 2004, to January, 2005, in the southern coastal waters of Korea. Examination of the outer margin of the otoliths showed that opaque zones formed once a year and annual rings formed from April to June. The ages of the specimens examined ranged from 3 to 8 years. Whitespotted conger spawn from December to March. Allometry between preanal length and total weight can be expressed as TW=0.0350×PL^(2.9173) (R^2=0.89). There was no significant difference in allometry between females and males (P>0.05). The estimated VBF growth equation was L_t =415.2(1-e^(-0.1457(t+0.4654))).
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