Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis
The Shahid Rajaei Reservoir constructed for various purposes such as drinking water supply. In this context, and also because of the importance of the bloom events and eutrophication process in dams, this paper is to survey the relations between some of physicochemical parameters and phytoplankton composition and density, chlorophyll-a and some water quality indices (Trophic, Saproby, Shannon) using mono and multivariate statistical analysis. Water samples collected from 4 stations during May, June, July, August, September, November and February in 2012-2013. According to the results, the maximum concentration of dissolved inorganic nitrogen, chlorophyll-a, phytoplankton abundance, trophic and saproby indices observed in a month of summer which it was accompanied to the minimum value of species diversity index (Shannon). Pearson analysis revealed direct correlation between abundance of Goniaulax polyedra, Goniaulax digitale and trophic index. In the other words, higher abundance of the two species decreased the water quality. Also based on the PCA analysis, the significant correlation observed between abundance of Cyclotella meneghiniana with Shannon and saproby indices which were negative and positive, respectively. This result indicates to the relation of degradation of water quality with increasing the abundance of Cyclotella meneghiniana. Meanwhile, the presence of the three parameters (abundance of Cyclotella meneghiniana, Shannon and saproby indices) in first component of PCA indicated the important role of Cyclotella meneghiniana and two biological indices in determining of water quality in Shahid Rajaei Reservoir.
Main Authors: | , , , |
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Format: | article biblioteca |
Language: | Persian |
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2016
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Subjects: | Biology, Ecology, Environment, Environmental, parameters, Phytoplankton, Biotic indices, Shahid Rajaei Dam, Sari, Iran, Mazandaran, biological, abiotic, biotic, Goniaulax polyedra, Goniaulax digitale, Cyclotella meneghiniana, water quality, |
Online Access: | http://hdl.handle.net/1834/36903 |
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dig-aquadocs-1834-369032021-06-25T03:16:55Z Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis Nasrollahzadeh Saravi, H. Makhlough, A. Vahedi, F. Rezaei, M. Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran The Shahid Rajaei Reservoir constructed for various purposes such as drinking water supply. In this context, and also because of the importance of the bloom events and eutrophication process in dams, this paper is to survey the relations between some of physicochemical parameters and phytoplankton composition and density, chlorophyll-a and some water quality indices (Trophic, Saproby, Shannon) using mono and multivariate statistical analysis. Water samples collected from 4 stations during May, June, July, August, September, November and February in 2012-2013. According to the results, the maximum concentration of dissolved inorganic nitrogen, chlorophyll-a, phytoplankton abundance, trophic and saproby indices observed in a month of summer which it was accompanied to the minimum value of species diversity index (Shannon). Pearson analysis revealed direct correlation between abundance of Goniaulax polyedra, Goniaulax digitale and trophic index. In the other words, higher abundance of the two species decreased the water quality. Also based on the PCA analysis, the significant correlation observed between abundance of Cyclotella meneghiniana with Shannon and saproby indices which were negative and positive, respectively. This result indicates to the relation of degradation of water quality with increasing the abundance of Cyclotella meneghiniana. Meanwhile, the presence of the three parameters (abundance of Cyclotella meneghiniana, Shannon and saproby indices) in first component of PCA indicated the important role of Cyclotella meneghiniana and two biological indices in determining of water quality in Shahid Rajaei Reservoir. 2021-06-24T18:01:46Z 2021-06-24T18:01:46Z 2016 article TRUE 1026-1354 http://hdl.handle.net/1834/36903 fa http://www.ifro.ir application/pdf application/pdf 179-194 http://aquaticcommons.org/id/eprint/22090 18721 2018-02-01 10:31:27 22090 Iranian Fisheries Science Research Institute |
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Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran |
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Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran Nasrollahzadeh Saravi, H. Makhlough, A. Vahedi, F. Rezaei, M. Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
description |
The Shahid Rajaei Reservoir constructed for various purposes such as drinking water supply. In this context, and also because of the importance of the bloom events and eutrophication process in dams, this paper is to survey the relations between some of physicochemical parameters and phytoplankton composition and density, chlorophyll-a and some water quality indices (Trophic, Saproby, Shannon) using mono and multivariate statistical analysis. Water samples collected from 4 stations during May, June, July, August, September, November and February in 2012-2013. According to the results, the maximum concentration of dissolved inorganic nitrogen, chlorophyll-a, phytoplankton abundance, trophic and saproby indices observed in a month of summer which it was accompanied to the minimum value of species diversity index (Shannon). Pearson analysis revealed direct correlation between abundance of Goniaulax polyedra, Goniaulax digitale and trophic index. In the other words, higher abundance of the two species decreased the water quality. Also based on the PCA analysis, the significant correlation observed between abundance of Cyclotella meneghiniana with Shannon and saproby indices which were negative and positive, respectively. This result indicates to the relation of degradation of water quality with increasing the abundance of Cyclotella meneghiniana. Meanwhile, the presence of the three parameters (abundance of Cyclotella meneghiniana, Shannon and saproby indices) in first component of PCA indicated the important role of Cyclotella meneghiniana and two biological indices in determining of water quality in Shahid Rajaei Reservoir. |
format |
article |
topic_facet |
Biology Ecology Environment Environmental parameters Phytoplankton Biotic indices Shahid Rajaei Dam Sari Iran Mazandaran biological abiotic biotic Goniaulax polyedra Goniaulax digitale Cyclotella meneghiniana water quality Iran |
author |
Nasrollahzadeh Saravi, H. Makhlough, A. Vahedi, F. Rezaei, M. |
author_facet |
Nasrollahzadeh Saravi, H. Makhlough, A. Vahedi, F. Rezaei, M. |
author_sort |
Nasrollahzadeh Saravi, H. |
title |
Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
title_short |
Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
title_full |
Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
title_fullStr |
Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
title_full_unstemmed |
Study on changes of biotic and abiotic parameters, and other biological indices in Shahid Rajaei Reservoir using mono and multivariate statistical analysis |
title_sort |
study on changes of biotic and abiotic parameters, and other biological indices in shahid rajaei reservoir using mono and multivariate statistical analysis |
publishDate |
2016 |
url |
http://hdl.handle.net/1834/36903 |
work_keys_str_mv |
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