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Study of heavy metal concentration in eggshell and feather of See-see Partridge: case study of Poldokhtar city
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Nasrin Gharahi   , Maryam Rashnunejad , FATEMEH AHMADI POR |
| SHAHREKORD UNIVERSITY |
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Abstract: (21 Views) |
The importance of biodiversity and the destructive effects of human activities have increased human attention to pollution compared to the past. Among environmental pollutants, heavy metals are considered as a risk and danger for humans and wildlife due to their multiple production sources and sustainability in the environment. Surveying birds as an indicator of heavy metal pollution is very useful because the biology of birds is well known, and they feed at higher levels in ecosystems, so they can provide information about the extent of pollution throughout the food web. For this purpose, the present study was conducted in 2022 with the aim of measuring the concentration of heavy metals (lead, cadmium, copper and zinc) in the feather tissue and eggshell of See-see Partridge species in Poldakhtar city. In 16 places, feather samples and in 25 places, eggshell samples were collected from the southwestern region of Poldakhter city, considering the distribution of the See-see Partridge bird in the Valiasr wetlands. The acid digestion method was used to prepare the samples. The obtained results were analyzed using Spss software. The order of accumulation of metals in the feather was found as zinc > copper > lead > cadmium and in the eggshell as copper > lead > zinc > cadmium. The average concentration of lead and cadmium in feathers was observed above the danger threshold. A direct and significant correlation was observed between the concentration of lead metal in the feather tissue and the eggshell of Tihu bird in the studied area. While no such result was found for cadmium, copper and zinc metals. In feather tissue, there was the highest correlation between copper and lead metals and between zinc and copper metals. In the egg shell, the highest correlation between copper and lead metals and between copper and zinc metals and the lowest correlation between cadmium and lead were observed. Based on the results of comparing the average of heavy metals, the amount of metals measured in the eggshell was significantly lower than the amount of metals measured in the feather tissue, which shows the high ability of feathers as a suitable biological indicator to measure heavy metal pollution.
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| Keywords: heavy metals, See-see Partridge, eggshell, Poldakhtar |
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Full-Text [PDF 772 kb]
(7 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2023/03/5 | Accepted: 2025/05/8 | Published: 2025/05/26
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