Journal of Wetland Ecobiology
Volume 15, Issue 2 (Summer 2023)
2023, 15(2): 71-82 |
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Water Quality Monitoring Based on Benthic Biodiversity Indicators (Case Study: Shadegan Wetland). Wetland Ecobiology 2023; 15 (2) : 6
URL: http://jweb.ahvaz.iau.ir/article-1-1127-en.html
URL: http://jweb.ahvaz.iau.ir/article-1-1127-en.html
Abstract: (214 Views)
This study was conducted in 2012 at 6 designated stations in Shadegan Wetland. Sampling was conducted in two seasons, spring and summer. Sampling included sampling of bed sediments and water sampling to determine the physical and chemical parameters of the water. The percentage of organic matter and sediment grain size were also determined. During the two sampling seasons, a total of 16 species from 5 macrobenthos orders were identified and counted. Among the identified orders, the highest percentage of abundance was related to the order of gastropods, followed by the order of bivalves in both seasons. The results of the physical and chemical parameters of water showed that there was no significant difference between the different sampling stations in the spring and summer seasons in terms of salinity and electrical conductivity (P>0.05), while the temperature, DO and pH and parameters had significant differences between the sampling stations and between the two seasons (P<0.05). Based on the results of the percentage of organic matter, the highest percentage of organic matter in sediments was related to the summer season (10.77 ± 2.13) and then to the spring season (0.99 ± 0.87). The results of the statistical analysis showed that there was a significant difference between the average percentage of organic matter in sediments in the two seasons (P<0.05). Shannon (H '), Simpson, Camargo, Brillion and N1 biodiversity indices were used to evaluate invertebrate biodiversity. The results of the statistical analysis showed that the N1 and Shannon indices had significant differences between the two seasons. (P<0.05). The average Shannon index was recorded in spring with (3.18±0.08) and in summer with (2.79±0.05), which indicates high diversity of macrobenthos in spring. The highest value of Simpson and Camargo indices was recorded in summer. The highest values of Shannon, Brillion and N1 indices were in spring. Also, the range of Shannon diversity index in the studied stations in two seasons according to Welch model indicates relatively polluted water quality and unstable and unfavorable ecological situation especially in summer.
Article number: 6
Type of Study: Research |
Subject:
Special
Received: 2026/01/2 | Accepted: 2026/01/15 | Published: 2026/01/15
Received: 2026/01/2 | Accepted: 2026/01/15 | Published: 2026/01/15
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