Distribution and composition pattern of XXXX in different tissues of sturgeons collected from Iranian coastline of the Caspian Sea.

@entity11965 @entity2555 @entity11966 @entity2556 @entity10333 @entity12683 @entity21961
The levels of 16 @entity2555 ( @entity2556 ) were determined in the liver, kidney, gills and muscle tissues of Persian sturgeon (Acipenser persicus; n=16), and @entity21961 ( @entity21961 ; n=7) collected from coastal waters of the South Caspian Sea from March and April 2011. The distribution and composition pattern of @entity2556 in the different tissues of sturgeons, and the effects of lipid content in sturgeon tissues and the @entity10333 -water partition coefficient (Kow) of @entity2556 congeners on them were analyzed. The levels of total @entity2556 in the various tissues of Persian sturgeon and @entity21961 ranged from 2.095 to 6.587 and 1.942 to 6.206 gg(-1)dw, respectively. @entity21961 showed significantly higher levels of heavy @entity2556 (   4-rings) than Persian sturgeon. The analysis has revealed a high degree of differential accumulation of the studied @entity2556 in the tissues of the both species. Low molecular weight @entity2556 predominated in the sturgeons, accounting for 81.89% of the total @entity2556 . Among the sixteen tested @entity2556 , @entity12683 was the most dominant congener, followed by @entity11966 and @entity11965 . The @entity2556 levels and distribution in the tissues of sturgeons are dependent on both the Kow of @entity2556 congeners and the lipid content in these tissues. There was a significant positive relationship (r=0.868, p<0.005) between lipid content and @entity2556 levels. The statistically significant negative relationships (p<0.01) were found between log Kow and log-transformed @entity2556 levels for muscle tissues of both sturgeon species.
