IDENTIFY AND EVALUATE THE DIVERSITY OF MACROBENTHOS IN KARAJ RIVER

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SHOKRI POUR Z.; ASHJA ARDALAN A.

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Journal: Journal of Animal Research Year:2017 | Volume:29 | Issue:4 Page(s): 442-453

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Title

IDENTIFY AND EVALUATE THE DIVERSITY OF MACROBENTHOS IN KARAJ RIVER

Author(s)

SHOKRI POUR Z. | ASHJA ARDALAN A. | Issue Writer Certificate

Keywords

IDENTIFICATIONQ2

DISTRIBUTIONQ2

AQUATIC INSECTSQ1

MACROBENTHOSQ1

KARAJ RIVERQ1

Abstract

Karaj River as one of the most important water sources of Tehran city, has special importance. This study consisted of diversity and DISTRIBUTION of Macro benthos on KARAJ RIVER that was conducted during years 2014-2015. It was started in fall 2014 and it was finished in summer 2015. In the mentioned area, the total of five study stations were selected based on environmental impact, MACROBENTHOS fauna samples were taken by Quadrat with dimensions of 50 × 50 cm such that were repeated 5 times at each station with seasonal frequency. Samples were fixed with 4% formalin, were separated in a lab, and then identified and counted. In surveys conducted, 23 genuses from 21 families and 5 orders of MACROBENTHOS were identified. The results show the station 4 in winter season had most abundance (1067) and the station 5 in spring season had the less abundance (254) of specimen. Insecta had the most abundance (88.8 % of total) and Malacostraca had the less abundance (0.1 % of total) between five classes were identified on KARAJ RIVER. The genera of the Simulim with the number of 879 per square meter the highest abundance and The genuses of the Asellus and Atherix With the number of 1 per square meter the lowest among the species had been identified. During this study the average of the Shannon-Wiener diversity index was calculated 1.73, Simpson dominance species was calculated 0.74 and Margalef richness species was calculated 3.31. According to the biological values of Hilsenhoff (HFBI), the water quality status of KARAJ RIVER at stations 2 and 3 were evaluated excellent, at stations 5 was evaluated very well and at stations 1 and 4 were evaluated well. Overall according to the results, it was determined that AQUATIC INSECTS constitute the dominant population of the benthic fauna in KARAJ RIVER. In winter season the classes: Insecta, Turbellaria, Gastropoda, Malacostraca and Clitellata had the greatest density and diversity compared to other seasons.

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APA: Copy

SHOKRI POUR, Z., & ASHJA ARDALAN, A.. (2017). IDENTIFY AND EVALUATE THE DIVERSITY OF MACROBENTHOS IN KARAJ RIVER. JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY), 29(4), 442-453. SID. https://sid.ir/paper/248762/en

Vancouver: Copy

SHOKRI POUR Z., ASHJA ARDALAN A.. IDENTIFY AND EVALUATE THE DIVERSITY OF MACROBENTHOS IN KARAJ RIVER. JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY)[Internet]. 2017;29(4):442-453. Available from: https://sid.ir/paper/248762/en

IEEE: Copy

Z. SHOKRI POUR, and A. ASHJA ARDALAN, “IDENTIFY AND EVALUATE THE DIVERSITY OF MACROBENTHOS IN KARAJ RIVER,” JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY), vol. 29, no. 4, pp. 442–453, 2017, [Online]. Available: https://sid.ir/paper/248762/en

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