Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran

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LAVAJOO FATEMEH; Amrollahi Biuki Narges; KHANIPOUR ALI ASGHAR; MIRZAJANI ALIREZA; Fruitos Joaquin Gutierrez; AKBARZADEH ARASH

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Journal: CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES) Year:2019 | Volume:17 | Issue:2 Page(s): 101-111

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Title

Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran

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Keywords

Macrobrachium nipponenseQ3

Food behaviorQ3

HabitatQ3

Anzali WetlandQ3

Abstract

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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APA: Copy

LAVAJOO, FATEMEH, Amrollahi Biuki, Narges, KHANIPOUR, ALI ASGHAR, MIRZAJANI, ALIREZA, Fruitos, Joaquin Gutierrez, & AKBARZADEH, ARASH. (2019). Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran. CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES), 17(2 ), 101-111. SID. https://sid.ir/paper/240689/en

Vancouver: Copy

LAVAJOO FATEMEH, Amrollahi Biuki Narges, KHANIPOUR ALI ASGHAR, MIRZAJANI ALIREZA, Fruitos Joaquin Gutierrez, AKBARZADEH ARASH. Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran. CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES)[Internet]. 2019;17(2 ):101-111. Available from: https://sid.ir/paper/240689/en

IEEE: Copy

FATEMEH LAVAJOO, Narges Amrollahi Biuki, ALI ASGHAR KHANIPOUR, ALIREZA MIRZAJANI, Joaquin Gutierrez Fruitos, and ARASH AKBARZADEH, “Natural diet of Macrobrachium nipponense shrimp from three habitats in Anzali Wetland, Iran,” CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES), vol. 17, no. 2 , pp. 101–111, 2019, [Online]. Available: https://sid.ir/paper/240689/en

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