Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles

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Shirangi Sayedeh Ainaz; KALBASSI MOHAMMAD REZA; KHODABANDEH SABER; Lignot Jehan Herve

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Journal: CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES) Year:2019 | Volume:17 | Issue:2 Page(s): 131-142

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Title

Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles

Author(s)

Shirangi Sayedeh Ainaz | KALBASSI MOHAMMAD REZA | KHODABANDEH SABER | Lignot Jehan Herve | Issue Writer Certificate

Keywords

Persian sturgeonQ3

cortisolQ3

salinity toleranceQ3

osmotic improvementQ3

chloride cellQ3

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

Shirangi, Sayedeh Ainaz, KALBASSI, MOHAMMAD REZA, KHODABANDEH, SABER, & Lignot, Jehan Herve. (2019). Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles. CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES), 17(2 ), 131-142. SID. https://sid.ir/paper/240690/en

Vancouver: Copy

Shirangi Sayedeh Ainaz, KALBASSI MOHAMMAD REZA, KHODABANDEH SABER, Lignot Jehan Herve. Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles. CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES)[Internet]. 2019;17(2 ):131-142. Available from: https://sid.ir/paper/240690/en

IEEE: Copy

Sayedeh Ainaz Shirangi, MOHAMMAD REZA KALBASSI, SABER KHODABANDEH, and Jehan Herve Lignot, “Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles,” CASPIAN JOURNAL OF ENVIRONMENTAL SCIENCES (CJES), vol. 17, no. 2 , pp. 131–142, 2019, [Online]. Available: https://sid.ir/paper/240690/en

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