전자저널 > 전자저널 > Age and Growth of the Pen Shell, Atrina (Servatrina) pectinata japonica (Reeve), on the West Coast of Korea

Age and Growth of the Pen Shell, Atrina (Servatrina) pectinata japonica (Reeve), on the West Coast of Korea

Dong-Ki Ryu, Sung-Hyun Baik, Kwan-Ha Park and Ee-Yung Chung

Faculty of Marine Life Science, College of Ocean Science & Technology, Kunsan Nathional University, Kunsan 573-360, Korea

Age and growth of the pen shell, Atrina (Servatrina) pectinata japonica, on the west coast of Korea were studied based on 701 samples caught in April 1995 to March 1996. The results are summarized as follows: the relationship between shell height and ring radius in each ring group was expressed as a regression line. Therefore, it could be recognized that there is a correspondence in the formation of each ring. Based on the monthly variation of the marginal index (MI') of the shell, it was assumed that the ring of this species was formed once a year during the period of June to July. The relationship between shell height (SH) and total weight (TW) were expressed by the following equation TW = 5.906 ×10-3 SH3.3844. Shell length (SL) and shell height were highly correlated according to the following equation SL = 0.5277 SH + 0.0934. The shell height-shell width (SW) relation was expressed by the following equation SW = 0.2681 SH - 1.3757. Growth curves for shell height and total weight fitted to the von Bertalanffy's equation were expressed as

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