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Age and Growth of Small Yellow Croaker, Larimichthys polyactis in the South Sea of Korea  

Kim, Yeong Hye (National Fisheries Research and Development Institute)
Lee, Sun Kil (National Fisheries Research and Development Institute)
Lee, Jae Bong (National Fisheries Research and Development Institute)
Lee, Dong Woo (National Fisheries Research and Development Institute)
Kim, Young Seop (National Fisheries Research and Development Institute)
Publication Information
Korean Journal of Ichthyology / v.18, no.1, 2006 , pp. 45-54 More about this Journal
Abstract
Age and growth of the small yellow croaker, Larimichthys polyactis were estimated using right sagittal otoliths of 506 fish specimens from March to December, 2002 and from January to February, 2005 in the South Sea, part of the East China Sea of Korea. Examination of outer margins of the otolith showed that the opaque zone was formed once a year. Marginal increment of the otolith formed annual rings from May and June at the beginning of spawning season. In the relationship between total length and body weight, a multiplicative error structure was assumed because variability in growth increased as a function of the length, and the estimated equation was $BW=0.0044TL^{3.2502}$ ($R^2=0.97$). The relative growth as body weight at total length has significant difference between females and males (P<0.05). For describing growth of the small yellow croaker, Larimichthys polyactis a von Bertalanffy growth model was adopted. The von Bertalanffy growth curve had an additive error structure and the growth parameters estimated from non-linear regression were $L_{\infty}=33.88cm$, K=0.20/year and $t_0=-2.39year$. Growth at age of males and females shows no significant difference (P>0.05). Most examined fish were 1, 2 and 3 years old, although the oldest fish were 7 old for males and 8 for females.
Keywords
small yellow croaker (Larimichthys polyactis); age and growth; otolith; marginal index (MI); multiplicative/ additive error structure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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