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aqua 18(2)_Acipenser stellatus

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Volume 18, Issue 2 – 15 April 2012

Shima Bakhshalizadeh, Shahram Abdolmalaki, Ali Bani: Aspects of the life history of Acipenser stellatus (Acipenseriformes, Acipenseridae), the starry sturgeon, in Iranian waters of the Caspian Sea, pp. 103-112

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SINGLE PAPER

Volume 18, Issue 2 – 15 April 2012

Shima Bakhshalizadeh, Shahram Abdolmalaki, Ali Bani: Aspects of the life history of Acipenser stellatus (Acipenseriformes, Acipenseridae), the starry sturgeon, in Iranian waters of the Caspian Sea, pp. 103-112

Abstract
The age and growth of the starry sturgeon, Acipenser stellatus, obtained from Iranian coastal waters of the Caspian Sea, were studied through analysis of the pectoral fin ray section from 69 specimens, ranging in fork length (FL) from 83 to 173 cm. The specimens were obtained from commercial fisheries between October 2008 and June 2010. The interpretation of growth bands in the pectoral fin ray sections was carried out objectively using the direct reading of thin sections and by image analysis. The maximum age recorded for the specimens of starry sturgeon was 29 years. The estimates of asymptotic length (L?) and the growth coefficient (K) of females were 153.69 cm and 0.08 per year respectively.

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