fa یافته کوتاه: تجمع زیستی عناصر سمی و ضروری در عضله و پوسته خرچنگ گرد (Potamon persicum Pretzmann,1962) رودخانه کاکارضا در استان لرستان فيزيولوژي آبزيان فيزيولوژي آبزيان پژوهشي Research <p>The present study was carried out to investigate accumulation of eleven toxic and essential trace elements in muscle and shell of <em>Potamon persicum</em> from Kakareza River in Lorestan Province (Iran) collected in summer and autumn, 2011.<a name="OLE_LINK14"></a> The elements level were analyzed by Perkin Elmer 4100 Zl atomic absorption and data were analyzed statistically using one-way ANOVA and Duncan&rsquo;s test by SPSS17. The results showed that the highest and lowest concentration of Hg, Cd, As, Fe, Co and P were in shell collected in autumn and muscle collected in summer, respectively. Also, the highest and lowest concentration of Pb, Zn, Ca and K were observed in shell collected in summer and muscle collected in autumn, respectively. The highest and lowest Cu concentration was measured in the shell and muscle of <em>P. persicum</em> collected in summer, respectively. Concentration of Hg, Cd, As, Pb, Zn, Cu, Fe, Co, Ca, K and P in the shell of <em>P. persicum</em> were higher than the muscle both in summer and autumn. According to the results, concentration of as and Cd in <em>P. persicum</em> muscle were higher than WHO standard limits, while concentration of Hg and Pb were still lower than that limitation.</p> عناصر سمی, عناصر ضروری, خرچنگ گرد, عضله, پوسته, رودخانه کاکارضا, استان لرستان Toxic elements, Trace elements, Potamon persicum, Muscle, Shell, Kakareza River, Lorestan Province 203 212 http://isfj.ir/browse.php?a_code=A-10-64-14&slc_lang=fa&sid=1 M. Taiebzadeh میثاق طبیب زاده 100319475328460018851 100319475328460018851 No M. Velayatzadeh محمد ولایت زاده mv.5908@gmail.com 100319475328460018852 100319475328460018852 Yes