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  • 1
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    Correlation of length and weight with Mercury concentration in different tissues of Kutum Roach (Rutilus frisii kutum) in central south of Caspian Sea (2018)
    Details
    Publication Date: 2021-05-19
    Description: We used Mercury Analyzer to assess possible correlation between length and weight of the Kutum Roach (Rutilus frisii kutum) and mercury accumulation in different tissues of the fish. We collected fish specimens from central south Caspian Sea from October to December 2005. After biometrical measurement of samples and sex determination, mercury concentration was assessed in muscle, liver and skin tissues of the specimens. The mean concentration of mercury in muscle, liver and skin tissues was 849.9, 670.9 and 493.7ng/g respectively. Statistical analysis of the results showed a significant difference between mercury amounts in different tissues (P〈0.05). No significant difference was found between male and female fishes in terms of mercury concentration (P〉0.05). The mercury amount in muscle of Kutum Roach was lower than permissible limits proposed by FDA (1000ng/g).
    Description: Published
    Keywords: Mercury ; Rutilus frisii kutum ; Length ; Weight ; Tissue ; Kutum Roach ; Specimens ; Muscle ; Liver ; Male ; Female ; FDA
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.97-102
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  • 2
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    Investigation of mercury concentration and its interaction with zinc and selenium at the muscle and liver tissues of Whitecheek Shark (Carcharhinus dussumieri) from Persian Gulf (2017)
    Details
    Publication Date: 2021-05-19
    Description: Mercury, zinc and selenium concentrations were analyzed in the muscle and liver of 25 Whitecheek Shark (Carcharhinus dussumieri) from the coast of Bandar Abbas. The level of Hg accumulation and its interaction with Zn and Se in Whitecheek Shark were studied. Hg, Zn and Se concentrations were determined by an Advanced Mercury Analyzer (LECO, AMA 254), Atomic Absorption Spectrometer (ASS,PU 9400) and Graphite Furnace Atomic Absorption Spectrophotometry (Perkin Elmer 3030) respectively. The mean (±SD) of Hg, Zn and Se concentrations were 0.05±0.02, 0.92±0.25 and 0.13±0.05µg/g wet wt in the muscle and 1.07±0.86, 1.57±0.43 and 0.46±0.19µg/g wet wt in the liver tissues, respectively. The mean of Hg, Zn and Se in liver tissue was significantly higher than muscle tissue. Also, 64% of liver samples showed levels above the acceptable limit established by WHO and FAO. A positive correlation was found between Hg and Se concentrations in the muscle and liver tissues with weight and length variables were statistically significant. In this study, the accumulation of Se in the muscle and liver of Whitecheek shark showed a positive correlation with Hg concentration. The mean molar ratio of Se to Hg found in the muscle and liver were 6.36±1.77 and 2.74±3.61, respectively. Positive correlations between Hg and Se showed efficient detoxifying mechanism and as a result, the possibility of reduction in toxicity of mercury in both tissues via Se-Hg complexes or the binding of Hg with selenoproteins.
    Description: Published
    Keywords: Mercury ; Carcharhinus dussumieri ; Shark ; Whitecheek Shark ; Investigation ; Concentrations ; Interactions ; Zinc ; Selenium ; Muscle ; Liver ; Tissues
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.11-22
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  • 3
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    Mercury bioaccumulation in pike (Esox lucius) from Anzali Lagoon, Iran (2018)
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    Publication Date: 2021-05-19
    Description: This paper presents the levels of total mercury (T-Hg) in dorsal muscle, liver and spleen of pike (Esox lucius) from Anzali Lagoon in Iran. Sampling were carried out from July 2004 to July 2005. In addition 78 samples were collected. T-Hg concentration were calculated in relation to biometric factors. T-Hg was measured by the LECO AMA 254 Advanced Mercury Analyzer (USA) according to ASTM standard NoD-6722. Each sample was analyzed 3 times. Accuracy of T-Hg analysis was checked by running three samples of Standard Reference Materials; SRM 1633b, SRM 2711 and SRM 2709. Detection limit was 0.001mg/kg in dry weight. The minimum and maximum concentration ofT-Hg in dorsal muscle was 0.2ppm in one year and 1.2ppm in five year class. The mean T-Hg significantly increased wit age increased (P〈0.05). The T-Hg mean concentration. In 1 and 2 year classes was 0.171ppm. Accamulation pattern ofHg was significantly as well as muscle〉liver〉spleen. T-Hg content in females was higher than males (P〈0.05). Acceptable monthly intake without carcinogenic effects due to mercury for women, men, juveniles and children was 270, 320, 125 and 59g per month. Consumption of pike above 35cm. length should be avoided.
    Description: Published
    Keywords: Esox lucius ; Pollution ; Heavy metals ; Pollutants ; Mercury ; Bioaccumulation
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.97-110
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  • 4
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    Assessing water contamination with Anionic Surfactants in Anzall Lagoon (2018)
    Details
    Publication Date: 2021-05-19
    Description: We assessed amount of surfactants and their seasonal trend in eight stations in Anzali Lagoon and compared them with allowable levels in the years 2001 2002. We obtained 96 water samples and determined their surfactant content using liquid - liquid method applying methylene blue active substance (MBAS). The concentration of surfactants in Pirbazar varied from 0.176 to 0.422 while that of the Sea station was somewhere between 0.098 to 0.049 mg/i. Seasonal concentration of surfactants varied from 0.049 to 0.422 mgil averaging on 0.137 mg/1. A significant difference was found for surfactant concentration in different parts of the lagoon (p〈0.05) with the eastern zone being the most polluted area with 0.422 g/l of the pollutants compared to 0.066 mg/1 in the Sea. The highest amount of the surfactants was seen in winter in contrast to the lowest amount in spring. No statistically significant difference was found between concentrations of the surfactants in different seasons.
    Description: Published
    Keywords: Surfactants ; Contaminants
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.61-68
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  • 5
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    Determination of LC sub(50) 96h of Dyazinon, Hinosan and Tilt for Acipenser nudiventris fingerlings (2018)
    Details
    Publication Date: 2021-05-19
    Description: The toxic effects of agricultural pesticides Dyazinon, Hinosan and Tilt (Propiconazole) were studied on Acipenser nudiventris fingerlings (1-3g) in Spring 2005. We conducted our experiments in aquaria holding 20L water in static systems based on O.E.C.D method using five treatments, one control concentration and three replications. In each aquarium, ten individual Ship Sturgeon fingerlings were introduced, and water physical and chemical factors were controlled to be in the range pH=7-8, TH〉400mg/l (CaCO sub(3)) as for the water used for culture, and DO=80% and temperature was kept between 24 plus or minus 1C. Our results for the LC sub(50) value of Dyazinon, Hinosan and Tilt in 96 hours were 0.36, 0.28 and 3.9mg/l in the fish fingerlings. We also determined the maximum allowable concentration value of the toxins at 0.036, 0.028 and 0.39, respectively.
    Description: Published
    Keywords: Sublethal effects ; Anadromous species ; Pesticides ; Aquarium culture ; Acipenser ; Acipenser nudiventris ; Brackish ; Toxicants ; Replication ; Fingerlings ; Toxicity ; Toxicity tests ; Fish culture ; Mortality causes
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.113-122
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  • 6
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    Assessing water contamination with Anionic Surfactants in Anzali Lagoon (2018)
    Details
    Publication Date: 2021-05-19
    Description: We assessed amount of surfactants and their seasonal trend in eight stations in Anzali Lagoon and compared them with allowable levels in the years 2001-2002. We obtained 96 water samples and determined their surfactant content using liquid - liquid method applying methylene blue active substance (MBAS). The concentration of surfactants in Pirbazar varied from 0.176 to 0.422 while that of the Sea station was somewhere between 0.098 to 0.049 mg/l. Seasonal concentration of surfactants varied from 0.049 to 0.422 mg/l averaging on 0.137 mg/l. A significant difference was found for surfactant concentration in different parts of the lagoon (p〈0.05) with the eastern zone being the most polluted area with 0.422 g/l of the pollutants compared to 0.066 mg/l in the Sea. The highest amount of the surfactants was seen in winter in contrast to the lowest amount in spring. No statistically significant difference was found between concentrations of the surfactants in different seasons.
    Description: Published
    Keywords: Surfactants ; Contaminants ; Liquid
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.61-68
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  • 7
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    The correlation of length and weight of Kutum (Rutilus frisii kutum) in the central south of Caspian Sea with copper and zinc concentration in muscle and liver tissues (2018)
    Details
    Publication Date: 2021-05-19
    Description: Concentration of copper (Cu) and zinc (Zn) in liver and muscle tissues of Kutum (Rutilus frisii kutum) of the Caspian Sea was assessed to study possible correlation of length and weight and the bioaccumulation of these heavy metals in the fish. Concentration of the metals in liver was higher than muscle (Zn: 55.2, Cu: 41.5kg/g) while the concentrations in the muscle tissue were lower than permissible limits proposed by FAO. Significant correlations were not detected between mean Zn and cu concentration and fish size. Finally, no significant difference was found in the concentration of the heavy metals in male and female fish specimens (P〉0.05).
    Description: Published
    Keywords: Correlation analysis ; Rutilus frisii ; Brackish ; Length-weight relationships ; Bioaccumulation ; Fish physiology ; Heavy metals ; Zinc ; Muscles ; Liver ; Copper ; Freshwater fish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.121-128
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  • 8
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    The correlation of length and weight of Kutum (Rutilus frisii kutum) in the central south of Caspian Sea with copper and zinc concentration in muscle and liver tissues (2021)
    In:  http://aquaticcommons.org/id/eprint/23685 | 18721 | 2018-07-18 06:54:47 | 23685 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: Concentration of copper (Cu) and zinc (Zn) in liver and muscle tissues of Kutum (Rutilus frisii kutum) of the Caspian Sea was assessed to study possible correlation of length and weight and the bioaccumulation of these heavy metals in the fish. Concentration of the metals in liver was higher than muscle (Zn: 55.2, Cu: 41.5 kg/g) while the concentrations in the muscle tissue were lower than permissible limits proposed by FAO. Significant correlations were not detected between mean Zn and cu concentration and fish size. Finally, no significant difference was found in the concentration of the heavy metals in male and female fish specimens (P〉0.05).
    Keywords: Fisheries ; Pollution ; Length-weight relationships ; Bioaccumulation ; Fish physiology ; Heavy metals ; Zinc ; Muscles ; Liver ; Copper ; Freshwater fish ; Correlation analysis ; Rutilus frisii ; Brackish ; Caspian Sea ; Caspian Sea Eurasia ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 121-128
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  • 9
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    A survey of the water pollution with heavy metals Ni, Pb,Hg, Cr,Cd,V,As and total hydrocarbon in Bandar Shahid Rajaii, Bandar Abbas (2021)
    In:  http://aquaticcommons.org/id/eprint/23655 | 18721 | 2018-07-15 00:19:18 | 23655 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-14
    Description: Persian Gulf is semi-closed water with high salinity and temperature and high evaporation rate and low water exchange with Oman Sea. Operation of oil wells in the area contributes to the water pollution in this intricate ecosystem. We selected nine stations in Shahid Rajaii harbour and one out of the area where samples of water and sediments were taken for assessment of density of total hydrocarbons and heavy metals using spectrophotometric (FT-IR) and atomic absorption (AAS) methods, respectively.
    Keywords: Pollution ; Vanadium ; Sediment pollution ; Arsenic ; Chromium ; Heavy metals ; Nickel ; Water pollution ; Oil pollution ; Cadmium ; Oil spills ; Pollutants ; Mercury ; Lead ; Absorption spectroscopy ; Spectrophotometers
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 161-166
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  • 10
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    Investigation of mercury concentration and its interaction with zinc and selenium at the muscle and liver tissues of Whitecheek Shark (Carcharhinus dussumieri) from Persian Gulf (2021)
    In:  http://aquaticcommons.org/id/eprint/21891 | 18721 | 2018-01-15 13:55:59 | 21891 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-04
    Description: Mercury, zinc and selenium concentrations were analyzed in the muscle and liver of 25 Whitecheek Shark (Carcharhinus dussumieri) from the coast of Bandar Abbas. The level of Hg accumulation and its interaction with Zn and Se in Whitecheek Shark were studied. Hg, Zn and Se concentrations were determined by an Advanced Mercury Analyzer (LECO, AMA 254), Atomic Absorption Spectrometer (ASS,PU 9400) and Graphite Furnace Atomic Absorption Spectrophotometry (Perkin Elmer 3030) respectively. The mean (±SD) of Hg, Zn and Se concentrations were 0.05±0.02, 0.92±0.25 and 0.13±0.05µg/g wet wt in the muscle and 1.07±0.86, 1.57±0.43 and 0.46±0.19µg/g wet wt in the liver tissues, respectively. The mean of Hg, Zn and Se in liver tissue was significantly higher than muscle tissue. Also, 64% of liver samples showed levels above the acceptable limit established by WHO and FAO. A positive correlation was found between Hg and Se concentrations in the muscle and liver tissues with weight and length variables were statistically significant. In this study, the accumulation of Se in the muscle and liver of Whitecheek shark showed a positive correlation with Hg concentration. The mean molar ratio of Se to Hg found in the muscle and liver were 6.36±1.77 and 2.74±3.61, respectively. Positive correlations between Hg and Se showed efficient detoxifying mechanism and as a result, the possibility of reduction in toxicity of mercury in both tissues via Se-Hg complexes or the binding of Hg with selenoproteins.
    Keywords: Biology ; Fisheries ; Pollution ; Mercury ; Zinc ; Selenium ; Whitecheek Shark ; Persian Gulf ; Iran ; tissues ; liver ; muscle ; Carcharhinus dussumieri
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 11-22
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