Diet composition of the Persian sturgeon <Emphasis Type="Italic">Acipenser persicus</Emphasis> at the coast of the Guilan Province,Caspian Sea |
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| Authors: | K Haddadi Moghadam Z Pajand H Parandavar F Chubian M Pahlavan Yali |
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| Institution: | (1) Department of Marine Biology, Faculty of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran;(2) Department of Environment, Natural Resources and Marine Science Faculty, Tarbiat Modares University, Noor, Iran;(3) International Sturgeon Research Institute, Rasht, Iran, P.O. Box 41635-3464 |
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| Abstract: | Sturgeons are one of the most important and valuable species in the Caspian Sea. This investigation (2000–2002) was aimed
at determining the feeding habits and the main and secondary prey organisms consumed by the Persian sturgeon (Acipenser persicus Borodin, 1897) living at depths less than 10 m in the Caspian Sea (Guilan Province). The food spectrum of immature A. persicus was comprised of benthic invertebrates of seven genera and fishes of three genera. The main prey items of immature A. persicus were polychaete worms and the secondary prey were crustaceans. The study of stomach contents showed that polychaetes were
the most important component of the diet of immature A. persicus of the length class up to 25 cm. |
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