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http://dx.doi.org/10.3796/KSFT.2012.49.3.261

Growth characteristic of Pacific cod, Gadus macrocephalus in theWest Sea of Korea  

Kim, Heeyong (Fisheries Resources and Environment Division, Southwest Sea Fisheries Research Institute, NFRDI)
Kim, Sanghwa (Fisheries Resources and Environment Division, Southwest Sea Fisheries Research Institute, NFRDI)
Im, Yangjae (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, NFRDI)
Hwang, Hak Jin (Resources Management Headquarters, Korea Fisheries Resources Agency)
Huh, Sunjung (Ecology & Environment Division, South Sea Branch, Korea Fisheries Resources Agency)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.49, no.3, 2013 , pp. 261-269 More about this Journal
Abstract
The age and growth of the Pacific cod, Gadus macrocephalus were investigated using left sagittal otoliths of 682 individuals collected in the West Sea of Korea from January to December 2007. The seasonal changes in the ratio of an opaque zone to interval between annular rings revealed that the narrow translucent parts of the otolith were annual growth rings formed between February and March once a year. The spawning period was December to January and therefore the duration from fertilization to the complete formation of the opaque zone became thirteen months. From the parameters calculated using the average length when the year ring was formed, the estimated von Bertalanffy growth equations were $L_t=100.0(1-e^{-0.1640(t+0.5247)})$ for females and $L_t=64.6(1-e^{-0.3335 (t+0.3342)})$ for males when is total length in age t.
Keywords
Gadus macrocephalus; Pacific cod; Otolith; Age; Growth;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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