A Freshwater Mussel Species Unio stevenianus Krynicki 1837 (Mollusca: Bivalvia: Unionidae) from the River Karasu Flowing into Lake Van, Turkey

ÇETİNKAYA, Osman

doi:10.55730/1300-0179.3028

Cited by 8 publications

(3 citation statements)

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“…Our finding indicated that maximum levels of lead, cadmium, mercury and chromium were not augmented in the muscles and gills of any examined fish kind. Mineral content has been evaluated in some case studies [12,13] [14] [15], and others found that the tested metals levels were normally below permissible levels [12]. Heavy metals dissolve in water and are used in agriculture and domestic environments [16].Natural and human sources can contribute to the contamination of agricultural sediments with chromium, lead, cadmium, and mercury; However, human causes are more common [17].…”

Section: Discussionmentioning

confidence: 99%

Using O. aureus and C. zillii as Bio Indicators in the Marsh of Dalmaj Southern Iraq

Jabbar,

Abed Alasady

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Due to of ongoing industries, humans cause water pollution and discharge of sewage into the water, which have contributed to the decline in the number of animals in the Dalmaj Marsh, which is home to thousands of species. Metals for instance mercury, cadmium, chromium, and lead pose a significant danger to public health and other animals such as fish, leading to carcinogenicity and renal failure. We can deduce that O. aureus acts as a highly efficient bio-indicator for heavy metals, including Pb, Mg, Cr, and Cd, in comparison to C. zillii. These metals also have impact on water quality and can interact with environmental variables, so in the current study we used procedures approved by the World Health Organization to evaluate concentrations of Lead, cadmium, chromium, and mercury in some fish species namely C. zillii and Oreochromis aureus as vital indicators of environmental pollution and monitoring environmental pollution in general to preserve biodiversity in the marsh of Dalmaj located in Al-Diwaniyah town area/Iraq from the period of August 2023 to January 2024. A difference in the concentrations of heavyweight metals accumulated in fish parts during all months of the study has been indicated, and all metals levels were within the internationally permissible limits. In addition, there was a slight increase in some heavy elements in the two studied types of fish species found in the Dalmaj marsh from one month to another. Our findings provide crucial basic data that reflects the quality of water in the Dalmaj Marsh. We recommend conducting more studies every year to screen heavy metal effluence in the waters of the Marsh of Dalmaj.

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Section: Discussionmentioning

confidence: 99%

Using O. aureus and C. zillii as Bio Indicators in the Marsh of Dalmaj Southern Iraq

Jabbar,

Abed Alasady

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Karasu River, which sources from the Turkey -Iran border, is poured into Van Lake from the Citoren Reeds (38°34'51.54"N -43°13'21.42"E) to the north of the Van center (Figure 1). There are Sarımehmet Dam and Satibey Regulator built in 1991 for irrigation purposes on the river (Cetinkaya et al, 1994).…”

Section: Migration Areamentioning

confidence: 99%

Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)

Atıcı¹,

Elp²,

Şen³

2023

ase

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The Karasu River (Van, Turkey) is one of the most important sources of intensive reproduction for Tarek (Alburnus tarichi Güldenstädt, 1814) in the Van Lake basin. However, sand pits and sand extraction activities in the Karasu River threaten the spawning areas of A. tarichi. This study aimed to investigate how increased sediment concentration in the Karasu River affects the eggs and larvae of A. tarichi during the reproductive period. The study in the laboratory was designed by measuring total suspended solids and turbidity associated with the river over two years for five different experimental groups (corresponding to 0, 10, 50, 100, and 600 mg L -1 , and associated groups: control group, Group 1, Group 2, Group 3, and Group 4, respectively). The percentage of hatched out larvae was statistically different between the groups (p<0.05). The highest percentages of hatched out larvae were found in the control group (73.98±5.89%) and Group 1 (68.05±2.96%). The highest survival rates in larvae were determined in the control group (53.35±5.62%) and Group 1 (44.98±4.41%). These results demonstrate that A. tarichi is sensitive to suspended solid concentrations that are very common in the natural environment. In conclusion, sand pits and sand extraction activities must be stopped completely during the reproductive period of A. tarichi between May and July and strict controls should be put in place during this time. These measures will provide an important contribution to ensuring the continuity of this species.

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“…Mussels are sessile animals. As they are organisms that obtain their food by filtering the water, they play a role in the filtration of organic matter, bacteria and plankton from the water body (Çetinkaya, 1996;Acarlı et al, 2023). Mussels face persistent and widespread anthropogenic pressures in their aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

Gene Expression Analysis in Freshwater Mussels (Unio stevenianus) Collected from Pollutant-Associated Environment

KANKAYA,

ATICI

2023

Menba Kastamonu Üniversitesi Su Ürünleri Fakültesi Dergisi

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Common pollutants found in rivers include sewage, pesticides, heavy metals, nutrients from agricultural runoff, and pathogens. The resulting pollution can alter the physiological processes of living systems and cause environmental stress in aquatic environments. The need to monitor the effects of pollution in aquatic ecosystems has been driven by environmental and human health concerns. Freshwater mussels, which play an important role in freshwater ecosystems, are constantly exposed to a wide variety of contaminants as filter feeders. The sessile nature of mussels and their relatively long life span make them useful indicator species for monitoring and assessment of water quality. The aim of this study is to determine physiological stress in Unio stevenianus living in Karasu river, whose pollution level is increasing daily, by Cox gene expression. Real-time PCR analysis using β-actin as a reference gene was used for gene expression. The expression level of the Cox gene was higher in the Zeve region than in the Arısu region. The lower level in Arısu region indicates that water quality criteria are better in this region than in Zeve region. Expression studies should be carried out in U. stevenianus by selecting different genes specific to certain pollutants.

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A Freshwater Mussel Species Unio stevenianus Krynicki 1837 (Mollusca: Bivalvia: Unionidae) from the River Karasu Flowing into Lake Van, Turkey

Cited by 8 publications

References 0 publications

Using O. aureus and C. zillii as Bio Indicators in the Marsh of Dalmaj Southern Iraq

Using O. aureus and C. zillii as Bio Indicators in the Marsh of Dalmaj Southern Iraq

Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)

Gene Expression Analysis in Freshwater Mussels (Unio stevenianus) Collected from Pollutant-Associated Environment

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