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  • 1
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    Polycyclic Aromatic Hydrocarbons in Seawater, Sediment, and Rock Oyster Saccostrea cucullata from the Northern Part of the Persian Gulf (Bushehr Province) (2011)
    Springer
    Details
    Publication Date: 2011-06-07
    Print ISSN: 0049-6979
    Electronic ISSN: 1573-2932
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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  • 2
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    A novel digestion method based on a choline chloride–oxalic acid deep eutectic solvent for determining Cu, Fe, and Zn in fish samples (2013)
    Elsevier
    Details
    Publication Date: 2013-01-01
    Print ISSN: 0003-2670
    Electronic ISSN: 1873-4324
    Topics: Chemistry and Pharmacology
    Published by Elsevier
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  • 3
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    Assessing changes shoreline in Dayyer city using the Landsat satellite data, sensor TM and OLI 1991 and 2014 years (2018)
    Details
    Publication Date: 2021-05-19
    Description: Coastal environments are considered the most sensitive system environments. In terms of environmental Coastal areas because of the sensitive and productive ecosystems have high importance and value. Having knowledge of the coastline’s behavior can help of the coastal better management. The aim of this study is to assessing the application of the OIF utility index factor in the assessment of coastline changes in Dayyer city, Using Landsat satellite images sensor TM and OLI 1991 and 2014 and the software are 2013®MATLAB and ArcGis 9.3. For the separation of land and water, OIF index value for all different band combinations in the application MATLAB® 2013 was calculated and then high-pass Sobel filter with 3 × 3 masks was applied to the images. Then digitization process during different periods in application environments ArcGis 9.3 was done manually and with high precision. The results of the survey the coastline from 1991 to 2014 show moving the coastline to the sea side (sedimentation) and landward (erosion), Which totals 33/784 square kilometers sedimentation and 9/132 square kilometers erosion shows from 1991 to 2014, in Dayyer city occurred because of the construction of piers, installations manmade and natural factors.
    Description: Published
    Keywords: Changes shoreline ; Landsat satellite ; OIF utility index
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-12
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  • 4
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    The relationships between biometric characteristics of Barbus grypus with heavy metals levels in tissues (muscle and gill) from Arvand River, Iran (2018)
    Details
    Publication Date: 2021-05-19
    Description: Heavy metals concentration (Cd, Pb, Cu, Ni) in muscle and gill tissue of the fish Barbus grypus was assessed in winter 2007. In total, 60 fish samples were taken from Arvand River and experiments were carried out on two fish tissues (muscle and gill) separated after biometrical measurements. Extraction of the heavy metals was performed using concentrated nitric acid and then A.A.S. was used for measurement of the heavy metals. Results showed 2.83, 16.42, 2.68, 0.77kg of heavy metals for gram dry weight of the fish for cadmium, lead, copper and nickel concentration in muscle tissue and 2.79, 9.03, 6.98, 1.39 in grill tissue. Metal levels in muscle tissue in this research were compared with standards values such as World Health Organization (WHO), Ministry of Agriculture, Fisheries and Food (MAFF) and National Health and Medical Research Council (NHMRC), based on which only lead and cadmium showed higher than standard levels. We found positive linear relationship between metal accumulation levels of cadmium and lead in muscle and gill tissue with total length and weight. There was a significant relationship between copper accumulation level in muscle tissue with weight but not so for the length. There was no significant relationship between copper accumulations level in the gill tissue with length and weight. There was significant relationship between nickel accumulation levels in the gill tissue and the total length and weight but not so for the muscle tissue.
    Description: Published
    Keywords: Barbus grypus ; Bioaccumulation ; Heavy metals ; Muscles ; Biometrics ; Gills ; Weight ; Water Pollution Effects ; Muscle ; Cadmium ; Fish ; Lead ; Freshwater
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.27-34
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  • 5
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    Biomass variation in red algae along the tidal areas of Bushehr province (2017)
    Details
    Publication Date: 2021-05-19
    Description: This study was carried out during October 2008 to July 2009 in Bushehr coastal areas at 6 stations to examine biomass variations in red algae. Algal samples were collected by hand from intertidal zone, during low tide. Quadrates 50 ×50cm each were marked randomly in the study area, and all algal samples were collected within the quadrate area. Total biomass was found to be 2598.91g. m belonging to 15 Rhodophyta species. The maximum biomass was 1114.32g.m (43%) observed at the Nirougah station. Summer showed maximum biomass 1076.36g.m (41%) compared to other seasons. Results of this study showed Rhodophyta species are dispersed more in mid littoral and sub-tidal areas. Also, the maximum biomass was observed in the sub-tidal zone. The highest biomass of the species belonged to Grascilaria canaliculata.
    Description: Published
    Keywords: Algal bloom ; Biomass ; Variation ; Algae ; Density
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.117-128
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  • 6
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    Effect of herbicide Atrezine chronic toxicity on bioaccumulation process in fillet of Barbus grypus (2017)
    Details
    Publication Date: 2021-05-19
    Description: Atrazine is one of the most important and effective pollutant in aquatic ecosystems. The largest sugar cane farms of Middle East is located in Khouzestan Province, Iran in which large amounts of Atrezine are being used in farming. The aim of this study was to investigate acute toxicity (LC50 96 h) of atrazine on barbus grypus and the effects of chronic toxicity with sub-lethal concentration of atrazine on bioaccumulation of atrazine in fish fillet. LC50 96 h of atrazine on barbus grypus was measured according to the OECD standard method, 180 barbus grypus were divided into 4 equal groups (in triplicates). Groups 1, 2 and 3 were exposed to 3.25 mg l-1 (5%), 6.5 mg l-1 (10%) and 13 mg l-1 (20%) of LC50 96 h concentrations, respectively. Group 4 exposed to toxin free water as a control group. Experimental exposures did last for 21 days, muscles samples of the large dorsal muscle were taken on days 0, 7, 14 and 21 of experiment. Bioaccumulation of Atrazine was measured in the muscle at days 0, 7, 14 and 21 in all groups. Results indicated that atrazine was toxic for barbus grypus and its toxicity increased not only with increase in atrazine but also with increase in the exposure time. The bioaccumulation of atrazine in fish muscles was increased significantly in groups 2 and 3 in all sampling periods and in groups 1 only in day 21. The results of present study showed that placing barbus grypus in the presence of chronic and sub lethal concentrations of the herbicide Atrazine for three weeks may lead to accumulation of toxins in the fish fillets.
    Description: Published
    Keywords: Barbus grypus ; Chronic toxicity ; Atrazine ; Toxicity ; Bioaccumulation ; Fillets
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.21-30
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  • 7
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    Heavy metals (Ni, Cd, Pb, Cu) concentrations in seaweed and sediments along the coastal areas of Hormuzgan province (Bandar Abbas and Bandar Lengeh) (2017)
    Details
    Publication Date: 2021-05-19
    Description: Metals concentrations were studied in dominant seaweeds and their adjacent sediments in Bandar Abbas and Bandar Lengeh tidal areas. The status of selected heavy metals (Ni, Cd, Pb, Cu) was determined in sediments and 15 dominant seaweed species including 4 species of Chlorophyta, 4 species of Phaeophyta and 7 species of Rhodophyta. Samples of seaweed and sediment were collected seasonally during November 2007 to August 2008 from intertidal regions of nine sites along the Bandar Abbas and Bandar Lengeh coasts. Powdered samples of sediments and seaweed were digested and analyzed using Atomic Absorption Spectrophotometer (A.A.S). Concentrations of Cu, Pb, Cd, and Ni were 5.24, 20.44, 5.40 and 33.83µg/g -1 dry wt. in sediments. Concentration of these metals in µg/g -1 dry weight in Chlorophyta were 11.11, 25.79, 4.76 and 46.57, in Phaeophyta were 9.18, 17.68, 4.82 and 36.65, and in Rhadophyta were 9.80, 21.03, 4.96 and 50.43, respectively. The marine seaweed species collected during all seasons and sites in Bandar Abbas and Bandar Lengeh were identified as Entromorpha compressa and Padina pavonica, respectively.
    Description: Published
    Keywords: Sediments ; Entromorpha compressa ; Padina pavonica ; Heavy metals ; Concentrations ; Seaweed ; Species
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.31-42
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  • 8
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    Heavy metals (Ni, Cd, Pb, Cu) concentrations in seaweed and sediments along the coastal areas of Hormuzgan province (Bandar Abbas and Bandar Lengeh) (2021)
    In:  http://aquaticcommons.org/id/eprint/21818 | 18721 | 2018-01-10 17:05:25 | 21818 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-02
    Description: Metals concentrations were studied in dominant seaweeds and their adjacent sediments in Bandar Abbas and Bandar Lengeh tidal areas. The status of selected heavy metals (Ni, Cd, Pb, Cu) was determined in sediments and 15 dominant seaweed species including 4 species of Chlorophyta, 4 species of Phaeophyta and 7 species of Rhodophyta. Samples of seaweed and sediment were collected seasonally during November 2007 to August 2008 from intertidal regions of nine sites along the Bandar Abbas and Bandar Lengeh coasts. Powdered samples of sediments and seaweed were digested and analyzed using Atomic Absorption Spectrophotometer (A.A.S). Concentrations of Cu, Pb, Cd, and Ni were 5.24, 20.44, 5.40 and 33.83µg/g -1 dry wt. in sediments. Concentration of these metals in µg/g -1 dry weight in Chlorophyta were 11.11, 25.79, 4.76 and 46.57, in Phaeophyta were 9.18, 17.68, 4.82 and 36.65, and in Rhadophyta were 9.80, 21.03, 4.96 and 50.43, respectively. The marine seaweed species collected during all seasons and sites in Bandar Abbas and Bandar Lengeh were identified as Entromorpha compressa and Padina pavonica, respectively.
    Keywords: Biology ; Fisheries ; Heavy metals ; Seaweed ; Sediment ; Bandar Abbas ; Bandar Lengeh ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 31-41
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  • 9
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    Effect of herbicide Atrezine chronic toxicity on bioaccumulation process in fillet of Barbus grypus (2021)
    In:  http://aquaticcommons.org/id/eprint/22012 | 18721 | 2018-01-22 11:11:57 | 22012 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: Atrazine is one of the most important and effective pollutant in aquatic ecosystems. The largest sugar cane farms of Middle East is located in Khouzestan Province, Iran in which large amounts of Atrezine are being used in farming. The aim of this study was to investigate acute toxicity (LC50 96 h) of atrazine on barbus grypus and the effects of chronic toxicity with sub-lethal concentration of atrazine on bioaccumulation of atrazine in fish fillet. LC50 96 h of atrazine on barbus grypus was measured according to the OECD standard method, 180 barbus grypus were divided into 4 equal groups (in triplicates). Groups 1, 2 and 3 were exposed to 3.25 mg l-1 (5%), 6.5 mg l-1 (10%) and 13 mg l-1 (20%) of LC50 96 h concentrations, respectively. Group 4 exposed to toxin free water as a control group. Experimental exposures did last for 21 days, muscles samples of the large dorsal muscle were taken on days 0, 7, 14 and 21 of experiment. Bioaccumulation of Atrazine was measured in the muscle at days 0, 7, 14 and 21 in all groups. Results indicated that atrazine was toxic for barbus grypus and its toxicity increased not only with increase in atrazine but also with increase in the exposure time. The bioaccumulation of atrazine in fish muscles was increased significantly in groups 2 and 3 in all sampling periods and in groups 1 only in day 21. The results of present study showed that placing barbus grypus in the presence of chronic and sub lethal concentrations of the herbicide Atrazine for three weeks may lead to accumulation of toxins in the fish fillets.
    Keywords: Biology ; Fisheries ; Pollution ; Atrazine ; Chronic toxicity ; Bioaccumulation ; Barbus grypus ; fish ; fillet ; Iran ; muscles
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 21-30
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  • 10
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    The use of chlorophylls content of seaweeds ulva intestinalis and Sargassum angustifolium as biomarker of metal pollution (2021)
    In:  http://aquaticcommons.org/id/eprint/24894 | 18721 | 2018-11-22 07:13:01 | 24894 | Khorramshahr University of Marine Science and Technology
    Details
    Publication Date: 2021-07-16
    Description: In this research, bioaccumulation ability of seaweed species Ulva intestinalis and Sargassum angustifolium to heavy metals (Ni, Cd, Cu and Pb) and possible use of their chlorophylls content as biomarker of metals stress was studied. Samples of seaweeds and sediment were collected from four stations along the province of Bushehr coastal areas during January 2008 and June 2009. Chlorophylls of seaweeds were extracted using aceton (90%) and content of chlorophylls were determined spectrophotometrically. Metals in sediment and seaweeds were extracted using hot concentrated nitric acid (65%) and analysed by atomic absorption spectrophotometery. The mean concentrations of Ni, Cd, Cu, Pb in sediment were 32.17, 6.38, 6.90, 45.96 µg/g dry weight, in U. intestinalis 29.28, 4.08, 6.78, 32.08 µg/g dry weight, and in S. angustifolium 15.00, 3.78, 5.13 and 18.30 µg/g dry weight, respectively. Pearson correlation coefficients between metals in sediment and seaweeds showed significant correlation between Pb in sediment and U. intestinals and Cd and Pb in sediment and S. angustifolium. The results revealed, variations of Chlorophylls content in S. angustifolium has been shown to be a better indicator of environmental stress compare to U. intestinalis.
    Keywords: Biology ; Pollution ; U. intestinalis ; S. angustifolium ; Bioaccumulation ; Heavy metals ; Chlorophyll ; Biomarker ; Sargassum angustifolium ; Ulva intestinalis ; Species ; Seaweed ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 55-66
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