Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran

Background: Water quality is usually measured using various indicators based on physical, chemical and biological parameters. By using the biological index that is based on the identification of the arthropod families, it is possible to make a logical judgment about the ecosystem condition. The aim...

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Main Authors: Farhad Pourfaraj, Malek Abazari, Eslam Moradiasl, S. Amad Mokhtariai
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2024-11-01
Series:Journal of Arthropod-Borne Diseases
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Online Access:https://jad.tums.ac.ir/index.php/jad/article/view/1331
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author Farhad Pourfaraj
Malek Abazari
Eslam Moradiasl
S. Amad Mokhtariai
author_facet Farhad Pourfaraj
Malek Abazari
Eslam Moradiasl
S. Amad Mokhtariai
author_sort Farhad Pourfaraj
collection DOAJ
description Background: Water quality is usually measured using various indicators based on physical, chemical and biological parameters. By using the biological index that is based on the identification of the arthropod families, it is possible to make a logical judgment about the ecosystem condition. The aim of this study was measuring correlation coefficients between qualitative and biological Indices. Methods: Water samples were collected 27 samples in northwest of Iran and aquatic insects’ samples 54 in 2019. The NSFWQI and IRWQISC as the most important indices of physical and chemical quality of water ranged from 54.45–76.21 and from 41.32 to 77.40, respectively. Results: A total of 2,953 aquatic insects were collected, and biological Index ranged from 6.26 to 3.38. It can be stated that increasing in the concentration of pollutants in the source and end of the river could lead to a sharp decrease in bio­logical index. IRWQISC index, the effluent stations of fish farms can fit into ‘fairly bad quality’ and ‘moderate quality’ categories. Conclusion: The linear regression analysis revealed a significant relationship between the Hilsenhoff biological Index and the physiochemical parameters of pH, DO (Dissolved Oxygen) and total dissolved solids. The activity of fish farms and discharging their effluents into water sources, can change the physical, chemical and biological parameters of re­ceiving waters, therefore it is recommended that the location of these units be reviewed and also the appropriate treat­ment for such effluents should be considered, so that the health risks caused by them can be effectively reduced.
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spelling doaj-art-d2cc24c1ebfb4270b58242e20f77a1652025-02-09T09:05:03ZengTehran University of Medical SciencesJournal of Arthropod-Borne Diseases2322-19842322-22712024-11-0118210.18502/jad.v18i2.17539Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of IranFarhad Pourfaraj0Malek Abazari1Eslam Moradiasl2S. Amad Mokhtariai3Department of Environment health, Ardabil University of Medical Sciences, Ardabil, IranArthropod-Borne Diseases Research Center, Ardabil University of Medical Sciences, Ardabil, IranArthropod-Borne Diseases Research Center, Ardabil University of Medical Sciences, Ardabil, IranDepartment of Environment health, Ardabil University of Medical Sciences, Ardabil, Iran Background: Water quality is usually measured using various indicators based on physical, chemical and biological parameters. By using the biological index that is based on the identification of the arthropod families, it is possible to make a logical judgment about the ecosystem condition. The aim of this study was measuring correlation coefficients between qualitative and biological Indices. Methods: Water samples were collected 27 samples in northwest of Iran and aquatic insects’ samples 54 in 2019. The NSFWQI and IRWQISC as the most important indices of physical and chemical quality of water ranged from 54.45–76.21 and from 41.32 to 77.40, respectively. Results: A total of 2,953 aquatic insects were collected, and biological Index ranged from 6.26 to 3.38. It can be stated that increasing in the concentration of pollutants in the source and end of the river could lead to a sharp decrease in bio­logical index. IRWQISC index, the effluent stations of fish farms can fit into ‘fairly bad quality’ and ‘moderate quality’ categories. Conclusion: The linear regression analysis revealed a significant relationship between the Hilsenhoff biological Index and the physiochemical parameters of pH, DO (Dissolved Oxygen) and total dissolved solids. The activity of fish farms and discharging their effluents into water sources, can change the physical, chemical and biological parameters of re­ceiving waters, therefore it is recommended that the location of these units be reviewed and also the appropriate treat­ment for such effluents should be considered, so that the health risks caused by them can be effectively reduced. https://jad.tums.ac.ir/index.php/jad/article/view/1331: Water quality index; Biological index; Aquatic insects; Water quality; Iran
spellingShingle Farhad Pourfaraj
Malek Abazari
Eslam Moradiasl
S. Amad Mokhtariai
Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
Journal of Arthropod-Borne Diseases
: Water quality index; Biological index; Aquatic insects; Water quality; Iran
title Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
title_full Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
title_fullStr Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
title_full_unstemmed Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
title_short Relationship between Biological and Qualitative Indices in Surface Waters Receiving the Effluent of Fish Farms in the Northwest of Iran
title_sort relationship between biological and qualitative indices in surface waters receiving the effluent of fish farms in the northwest of iran
topic : Water quality index; Biological index; Aquatic insects; Water quality; Iran
url https://jad.tums.ac.ir/index.php/jad/article/view/1331
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AT eslammoradiasl relationshipbetweenbiologicalandqualitativeindicesinsurfacewatersreceivingtheeffluentoffishfarmsinthenorthwestofiran
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