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Caspian Journal of Enviromental Sciences، جلد ۱۷، شماره ۲، صفحات ۱۰۱-۱۱۱
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عنوان انگلیسی Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran
چکیده انگلیسی مقاله The freshwater shrimp, Macrobrachium nipponense is an invasive species which has recently been reported in Anzali Wetland, Iran. It exhibited good tolerance and adaption in this wetland ecosystem. This study examined certain aspects of feeding of M. nipponense in three habitats of this wetland. Shrimps were randomly sampled from April 2016 to March 2017. The stomach contents were obtained from 367 specimens ranging in length from 4.2 cm to 6.9 cm. The empty stomach index (VI) showed that this shrimp was a voracious (0 ≤ VI < 20) species in all seasons expect winter, when 99% of the specimens had empty stomachs. Fourteen dietary items were categorized in the three habitats of the wetland, with phytoplankton, mollusks and detritus forms being the dominant food items in the western, central and eastern habitats respectively. The feeding precedence index (FP) revealed that the most abundant portion of food was subsidiary one (50 ≥ FP ≥ 10) and the highest proportions of subsidiary food were phytoplankton (24.5%), gastropods (34%) and detritus (29.11%) in the western, central and eastern habitats, respectively. Omnivorous feeding is one of the reasons for the success, high tolerance and adaptation of M. nipponense in the Anzali Wetland ecosystem.
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نویسندگان مقاله F Lavajoo |
Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Iran

N Amrollahi Biuki |
Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Iran

A.A Khanipour |
Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Anzali, Iran

Al Mirzajani |
Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Anzali, Iran

J Gutiérrez Fruitos |
Department of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona

A Akbarzadeh |
Department of Fisheries, Faculty of Marine Science and Technology, University of Hormozgan, Iran

نشانی اینترنتی https://cjes.guilan.ac.ir/article_3404_528d1b89346f27056cabcf2a9f3a07ec.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/385/article-385-1580566.pdf
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