@article{ author = {AttaranFariman, Gilan and Sadeghi, Parvin and Roghayeh, Shirzaii}, title = {Assessment of Chattonella subsalsa Cyst and Excysted Cells Isolateted from Sediment of Lipar Zone (Makran Coast) Based on Morphology and LSU-rDNAGen Sequence}, abstract ={This study has been carried out in order to identify the phytoplankton cysts from sediment of Lipar zone (southeast coast of Iran) based on morphology and phylogeny of germinated cell. The sediment samples were collected from three sations by Ekman grab with 225 cm2 collecting area in 2015. Unknown cysts with different morphology were cultured in the petridishei containing the F2 medium and kept in phycolab and Germinator undere a proper condition 12:12 L/D in 25 ºC±1. The germinated cell was similar to the Chattonella subsalsa based on intitial morphological assessment. To confirm the identification, DNA of germinated cell was extracted and PCR and gene sequence of partial LSU-rDNA region were done. Phylogenetic analysis showed that germinated cell with 98% boot strap support was resembeled to the C. subsalsa. The assessment of cyst/theca relationship in the phytoplankton lifecycle can be a useful tool in the identification of the phytoplankton cells.}, Keywords = {Raphidophytes, Bloom, Phylogeny, Cyst, Phytoplankton, Makran.}, volume = {10}, Number = {37}, pages = {1-9}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.2073}, url = {http://joc.inio.ac.ir/article-1-1176-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1176-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {Bagheri, Hossein and NaderiBeni, Abdol Maji}, title = {Reconstruction of Sea Level Changes using Magnetic Susceptibility Variations in Southeastern Caspian Sea}, abstract ={Magnetic susceptibility is one of the most important tools for monitoring the sediment composition during environmental studies. In this research, in order to reconstruct the Caspian Sea level changes, magnetic susceptibility variations were used during the studies of 5 sedimentary cores (K1, K3, K5, K7, N1), collected from bottom sediments of Gorgan Bay. Samples were analyzed for grain size, total organic matter, carbonate content and magnetic susceptibility (MS). The results showed a close relationship between particle size distribution and MS magnitude due to variation in terrestrial influx, which was caused by sea-level fluctuations in different times. This process increases with rising particle size and magnitude of MS simultaneously with sea level fall and decreases during sea-level rise. Moreover, no relationship between magnitude of MS and carbonate content was observed. It could be concluded that using magnetic susceptibility curves with other data, such as geological and historical data, could be suitable for the reconstruction of marine environments, especially in the near shore coastal area.}, Keywords = {Sediment core, Sea-level fluctuations, Magnetic Susceptibility, Gorgan Bay, Caspian Sea.}, volume = {10}, Number = {37}, pages = {11-21}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.5293}, url = {http://joc.inio.ac.ir/article-1-1182-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1182-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {Heydari, Farah and YadegarianHajiabad, Linda and Salimi, Li}, title = {Evaluating the Potential of Bivalve Scallop (Bivalvia: Pectinidae: Scallop) in Biofiltration of Wastewater in Shrimp Farms from Guowater Bay, Chabahar}, abstract ={In this study, the Scallop bivalves were used for biofiltration of wastewater in shrimp farms during spring 2018 from Guowater Bay. Sedimentation, biological and aeration ponds were prepared for biofiltration around the main pool, then, oyster bivalves were collected from natural environment (sea) and were placed in these pools. Concentration of quality parameters were investigated in four sampling stations including station 1 (sea water), station 2 (inlet water), station 3 (outlet waste) from main pond, and station 4 (water sampled before entering the sea). The results showed that the concentration of parameters were significantly higher in the outlet waste of main pond (station 3) than the other stations (P<0.05). The results of the correlation test showed there was significant negative correlation between biofiltration ratio and quality parameters, so that concentrations of parameters were decreased with increasing in filtration rate. The concentration of nitrate, phosphate, turbidity, EC, TDS and dissolved oxygen were 0.67, 1.52, 22.36, 39.78, 20.21 and 9.49 mg/l in main pond, and 0.56, 0.79, 16.81, 38.68, 16.45 and 12 mg/l after biofiltration, respectively. The results showed that there were significant differences between parameters before and after biofiltration. There were significant differences in the biofiltration rate between the different time intervals (P<0.05), so that the highest and lowest filtration rates were observed in the fifth and first day, respectively. The rate of 20, 48, 27, 22 and 2.5 % of nitrate, phosphate, turbidity, TDS and EC were removed from wastewater during biofiltration process. Therefore, the Scallop bivalve has a high ability for biofiltration of wastewater in shrimp farms that can be used as a good indicator for biofiltration of fish and shrimp farms.}, Keywords = {Bivalve, Biofiltration, Shrimp Farms, Gouvatre Bay, Chabahar.}, volume = {10}, Number = {37}, pages = {23-31}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.13621}, url = {http://joc.inio.ac.ir/article-1-1318-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1318-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {Mahmoudof, Masoud and Bagheri, Mohamm}, title = {Determination of Compound and Overtide Constituents near the Eastern Iranian Coast of Makran}, abstract ={In this study, the compound and overtide constituents resulted from nonlinear triad interactions were evaluated using Bispectral method at the eastern Iranian coasts of Makran. It was found that the most significant compound constituents at the studies area were KO2, KP2, MS4 and MN4. Also, the overtides of M4 and S4 were detectable by means of implemented method. The superiority of Bispectral method comparing with least square method (harmonic analysis) is in recognizing some of compound tides such as KO2, which is never identifiable using least square method. The corresponding Fourier harmonic frequencies to main tidal constituents were identified by comparing the results of the least square method and the Fourier analysis. Finally, the analysis was performed with d.o.f.s of 16, 32 and 64. The repeated significant bicoherence values in all three d.o.f.s and in the main tidal constituent frequencies range were regarded as the intensive and effective interactions.}, Keywords = {Compound tides, Overtide, Nonlinear interaction, Bispectra, Makran.}, volume = {10}, Number = {37}, pages = {33-41}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.12162}, url = {http://joc.inio.ac.ir/article-1-1255-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1255-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {shafiabadi, Hamed and yousefi, homayoun and kuhbor, mohammad amin and razmjooei, damou}, title = {Evaluation of Effectiveness of Main Factors on the Reduction of Loading and Discharging Performance Versus Loading and Discharging Rate of Dry Bulk Terminal (Case Study of Imam Khomeini Port)}, abstract ={The aim of this article is to measure the impact of main factors affecting the reduction of discharge and loading performance compared to dry bulk discharge and loading in terminal of Imam Khomeini Port. For this purpose, the actual data presented in Imam Khomeini Port for discharging and loading statistics and library documented data were used. In order to answer the research questions, multiple regression method was used applying STATA14 software. According to the first model results, variables such as displacement of labour equipment, technical defect of ship equipment and delay in the separation had significant effect on loading rate via an indirect Chanel. Also, based on the second model results, independent variables such as displacement of labor equipment, technical defect of ship equipment and quarantine, had a significant effect on discharging rate variable and this effect found to be indirect. Moreover, almost all of the variables were significant in both regressing models.}, Keywords = {Dry bulk terminal, Discharge and loading rate, Delays and stopping operations, Econometric, Imam khomeini Port.}, volume = {10}, Number = {37}, pages = {43-51}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.12801}, url = {http://joc.inio.ac.ir/article-1-1243-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1243-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {MobarakHassan, Elham and tajbakhsh, sahar and ghaffarian, parvin and peghahfar, nafiseh and karimkhani, mahnaz}, title = {Effective Synoptic Structures in the Supporting Dust Storms over the Persian Gulf}, abstract ={In the paper, the atmospheric conditions in the Persian Gulf region and southwest of Iran were studied by analyzing several case studies in cold and warm seasons. For this purpose, three case studies were selected from the dust events occurred between September and March and have been studied using meteorological stations data, satellite imagery, ECMWF global data, and HYSPLIT and DREAM outputs models. The results showed that one of the main dust transport factors into the southwestern Iran was the northwesterly winds over western neighboring countries. This study showed that atmospheric mean layer patterns (500 hPa), did not play a fundamental role in the transport of dust, and, in all circumstances, duststorms occured in the northern flow of Earth's surface. However, a trough of low contours in 500 hPa was effective in enhancing convection and storm intensification. The ranging 0.2 to 0.6 Pa/s of downward vertical component of wind speed at a level of 925 hPa is suitable to control dust concentration near the surface of the Earth.The effect of the friction force on the Earth's surface, which causes the dust, doesn’t move completely along the North-South direction and expand in the region horizontally. Northwest winds (Shamal wind) more than 25 kt at 925 hPa results in continued dust transportation to Iran. With the formation of a low level jet stream, the strengthening and development of duststorms is more likely. The output of the HYSPLIT model was as good as predicting the path of the particle in the direction of the northwest winds, and the output of the DREAM model showed a sharp decrease in horizontal visibility. By comparing horizontal visibility in Ahwaz and Abadan, as well as studying the output of the HYSPLIT model, it can be seen that local dwarfs are also formed in Ahwaz, which, in addition to the source of dust, can also be considered domestic sources.}, Keywords = {Dust storm, DREAM Model, HYSPLIT Model, Persian Gulf.}, volume = {10}, Number = {37}, pages = {53-64}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.12362}, url = {http://joc.inio.ac.ir/article-1-1188-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1188-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {Bateni, fatemeh and Mehdinia, ali and SeyedHashtroudi, Mehri}, title = {Polycyclic Aromatic Hydrocarbons in Offshore Surface Sediments of the Northern Persian Gulf, Bushehr Province}, abstract ={Polycyclic aromatic hydrocarbons (PAHs) are classified as an important category of semi-volatile and persistent organic pollutants. They cause environmental problems due to their toxicity and accumulation in sediments. In this research, offshore sediments of 19 stations in 8 transects of the Persian Gulf in Bushehr province were studied to assess the sources of PAHs. The extraction and clean up method were based on pressurized liquid extraction (PLE) with the cleanup by packed silica gel-based column. The compounds were analyzed by GC-MS. Recovery of the compounds was over 70%. The range of total 15 PAHs in sediment was from 6.5 to 35.5 ng g-1 sediment dry weight. The results showed that the levels of PAHs in the sediments were in the category of low pollution sediments. The highest concentrations of PAHs have been recorded in the station number 4 and 15 near the Kharg Island (Abouzar oil field) and Golshan oilfield, respectively. The cross plots of the diagnostic ratios of PAHs have come into common use as a tool for identifying and assessing pollution emission sources. Three cross-plots for the diagnostic ratios were applied in this study. They showed that the PAHs in the area had mixed sources of pyrogenic and pyrolytic. A progressive increase in the levels of PAHs was observed compared to the ROPME Cruise in 2006 that reflected more impact of anthropogenic activities on the sediments in recent years.}, Keywords = {Polycyclic Aromatic Hydrocarbons, Surface Sediment, Oil pollution, Bushehr Port, Persian Gulf.}, volume = {10}, Number = {37}, pages = {65-73}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/JOC.2019.10.13231}, url = {http://joc.inio.ac.ir/article-1-1297-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1297-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Optimizing Extraction of total phenolic Compounds in Sargassum sp. and sea lettuce (Ulva sp.) in Chabahar coastal waters using ultrasonic method}, abstract ={Abstract The phenolic compounds contain antioxidant properties that can be effective in the treatment of some chronic and malignant diseases. The aim of this study was to determine optimal conditions for extraction of total phenolic compounds from Sargassum sp. and Sea lettuce (Ulva sp.) in Chabahar coastal waters. The extracts of these two algae were extracted by ultrasonic method and then the different parameters consisting of solvent type (water, methanol, ethanol, or acetone), sample size (63, 125, 250, or 500 micron) and dry sample (0.1, 0.2, 0.3, 0.4, or 0.5 g) in 10 ml solvent and ultrasonic time (10, 20, or 30 mins) and temperatures (20, 40, 50, or 60°C) were optimized. The determination of total phenolic compounds were done by spectrophotometric method using Folin ciocalteu reagent and standard curve gallic acid. Maximum total phenol content was obtained by water as a solvent, particle size of 125 microns for Sargassum sp. and 250 microns for Ulva sp., dry extract of 0.1 g per 10 ml solvent for Sargassum sp. and dry extract of 0.2 g per 10 ml solvent for Ulva sp. and ultrasonic time of 10 minutes at 40 ° C for both algae. Under the optimized conditions, the highest total phenolic compounds were obtained for Sargassum algae (i.e.5.58 ± 0.271 mg gallic acid per gram of dry sample) and for Sea lettuce (i.e.2.047 ± 0.258 mg gallic acid per gram of dry sample). The results of the study showed that Sargasum algae can be used as a appropriate natural marine antioxidant source in the food and pharmaceutical industries as well.}, Keywords = {Phenolic compounds, Chabahar Bay, Sargassum, sea Lettuce, Ultrasonic, Folin Ciocalteu, spectrophotometric.}, volume = {10}, Number = {38}, pages = {1-10}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.1}, url = {http://joc.inio.ac.ir/article-1-1508-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1508-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Increasing accuracy of TPXO global tidal model using TELEMA numerical model in Bushehr Bay}, abstract ={Abstract Several methods have been developed such as experimental methods, numerical and computational models for studying the prediction of water level. The purpose of this research is to evaluate and verification Telemac's numerical tidal model in Bushehr Bay waters using measured data. In this regard, the Telemac 2D module has been used to simulate the tide in a A course, 15 days from 01/08/2011 in Bushehr Bay Area. After the preparation of hydrographic data, the creation of irregular triangular mesh, the application of tidal data as astronomical force on the border, water level and tidal current velocity was modeled. In order to verify the water level, tidal range, flow rate and friction coefficients of the model, the data from water level measurement and tidal current velocity recorded by the port authorities were used. In the next step, the water level, the tidal current velocity were extracted by the global TPXO model using Matlab software. The tidal analysis results from the global ocean drag model were compared with the results of modeling. The results of the research indicate that the RMSE error rate decreased from 14% to 7% for the water level and from 20% to 5% for the tidal current velocity after modeling on the TPXO data. The shape factor value was 1/1 that showed tide in Bushehr Bay mixed, often half a day.}, Keywords = {TELEMAC Model, Water Level, Bushehr Bay, TPXO, Tide.}, volume = {10}, Number = {38}, pages = {11-16}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.11}, url = {http://joc.inio.ac.ir/article-1-1509-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1509-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {3D Modeling of Wind-Driven Circulation In The Northern Indian Ocean During Monsoon}, abstract ={Abstract The purpose of this research is to design and identify some of the natures and characteristics of high-resolution surface currents in the Northern Indian Ocean. The pattern of 3D circulation of the Wind-driven surface currents, Sea surface temperature (SST) and Sea Surface Salinity (SSS) distribution in the Northern Indian Ocean using The MIT general circulation model (MITgcm) with horizontal (2 arc-minutes) and vertical (20 Levels) resolutions during Monsoon was simulated and the model became stable after 17 years. This resolution is very accurate for the reproduction of ocean circulation and the eddy dynamics.Temperature, salinity, wind, net heat flux, evaporation minus precipitation as the initial data were introduced to the model. According to the results, an upwelling was characterized at 61°E-24°N near Chabahar in July, as well as a strong anticyclone take places at 56.5°E-18°N which enters to the north Arabian sea after a clockwise rotation. The summer monsoon current flows eastward during the summer monsoon (May-August) and the winter monsoon current flows westward during the winter monsoon (November-February) and also, the jet of Ras Al Hadd at the Oman coast is identifiable in the model.}, Keywords = {Monsoon Circulation, Ras al Hadd, SST, SSS, Northern Indian Ocean, MITgcm.}, volume = {10}, Number = {38}, pages = {17-28}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.17}, url = {http://joc.inio.ac.ir/article-1-1510-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1510-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Antibacterial effect of extract Gastropoda Peronia verrculata on the coast of Bushehr province(Persian gulf)}, abstract ={Abstract There is demand for the production of  new and effective antimicrobial compounds  because the pathogenic bacteria evoluted and resistance to antibiotics Butanol, Methanol and Aceton extracts of Peronia verruculata were obtained and the antibacterial effects of two bacteria, Staphylococcus aureous (gram-positive) and Escherichi coli (gram negative) were determined using MIC and MBC methods. Turbidity and transparency of microtubes containing different amounts of butanol extract showed that the minimum inhibitory concentration (MIC) of E. coli was 600 μg/μl and 800 μg/μl of Staphylococcus aureus. The growth status of E.coli in Muller Hinton Agar Plate at different concentrations of  butanol extract showed a minimum bacterial concentration (MBC) of 800 μg/μl and for Staphylococcus aureus 100 μg/μl. Aceton and methanolic extracts of Peronia verrculata to 1000 μg/μl did not inhibit bacterial growth.}, Keywords = {Gastropoda peronia verrculata, antibacterial effect, MIC,MBC.}, volume = {10}, Number = {38}, pages = {29-36}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.29}, url = {http://joc.inio.ac.ir/article-1-1511-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1511-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Morphologically and microscopically identification of sea cucumbers in the tidal zone of the western coast of the Persian Gulf}, abstract ={Abstract The morphological identification and investigation of the internal skeletal structure of sea cucumbers in the tidal zone of the western coast of the Persian Gulf were performed by sampling from 2 stations (Bostaneh Port and Hendurabi Island). Species identification were performed using the Spicules detected form muscle tissue of the samples by Invert microscope and checked with valid identification keys. Finally, after morphological and microscopic studies four species of sea cucumbers were identified. In the present study Stichopus horrens and Stichopus monotuberculatus were found for the first time in the tidal zones of the western coasts of the Persian Gulf (Hendurabi Island). This study showed that the most frequent types of spicules were barrel and button types in the sea cucumbers genus of Holothuria parva and Holothuria arenicola respectively. The characteristic feature for distinguishing of S. horrens species from the S. monotuberculatus species was the presence of large table thumbtack shape on the dorsal papilar part of S. horrens species whereas this type of spicule was absent in the S. monotuberculatus species.}, Keywords = {Sea cucumber, Morphological, Spicule, Persian Gulf.}, volume = {10}, Number = {38}, pages = {37-43}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.37}, url = {http://joc.inio.ac.ir/article-1-1512-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1512-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Comparative immunohistochemistry of Gut-associated lymphoid tissue (GALT) of, Huso huso in two warm and cold seasons}, abstract ={Abstract The main objective of recent study was comparative immunohistochemistry of Gut-associated lymphoid tissue (GALT) of, Huso huso in two warm and cold seasons. Ten specimens were collected from sturgeon breeding centers and after anesthesia, biometric was taken on them. 0.5 centimeter samples of primary, middle and end of intestine were removed and immediately were placed in Bouin solution. Rutine procedure of tissue prepration was done and sections in the thicknesses of 4-6 microns were prepared. Eventually they were taken under staining. Finally was performed general Hematoxylin-Eosin staining (H&E), histochemical staining of Periodic Acid Schiff (PAS), and (TUNEL) immunohistochemistry. Histomorphology and histometric results showed that the intestine consists of mucous, submucosa, muscularis and serousa. Comparative study of Gut-associated lymphoid tissue in two seasons was found that their density and composition are different. In cold season, the density of lymphoid tissue in base of the epithelium was more than the warm season.The number of lymphocyte cells in the mucosa and submucosa of different parts of the intestine in warm season showed a significant decrease compare to the cold season (p≤0.05). Also, the number of lymphocyte cells in the end of the intestine showed a significant increase during the cold season compare to the warm season (p≤0.05). In general, it has been shown that in immunohistochemical studies, the number of cells with apoptosis, especially in the warm season, were higher in all parts of the intestine than to the cold season (p≥0.05). Therefore, due to stimulation immune system in this part of the gastrointestinal tract, it can be considered to determine for vaccination time.}, Keywords = {Immunohistochemistry, GALT, Intestine, Huso huso.}, volume = {10}, Number = {38}, pages = {45-54}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.45}, url = {http://joc.inio.ac.ir/article-1-1513-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1513-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Investigation of the Flood Effect on Environmental Parameters of Gorgan Bay}, abstract ={Abstract In mid-March 2019, severe floods occurred in the northern provinces of Iran (Golestan and Mazandaran). Coastal areas, wetlands and bays are strongly influenced by water inputs from land. In this study, the nutrients (nitrate, nitrite, phosphate, silica and ammonium) and other physicochemical parameters (salinity, pH, dissolved oxygen and water temperature) at 8 selected stations in the Gorgan bay were measured and compared before (February, 2019) and after (April and May, 2019) the floods. The nutrients were measured using the standard MOOPAM method. Other physicochemical parameters were measured on-site by means of Hack multimeter. The results of this study showed that the amounts of all nutrients in the Gorgan bay have decreased after the floods. In particular, ammonium and nitrate showed a decrease of about 8.30 and 3.13 times, respectively. This dilution of nutrients are due to rainfall, as well as the entry of water from Gorganrod and Qareso rivers to the Gorgan bay. Compared to other nutrients, nitrate had a higher percentage before and after the floods. Furthermore, the average salinity amounts of the bay before and after the floods were 14.79 psu and 9.27 psu, respectively. These changes in hydrochemistry can affect the ecosystem of Gorgan bay.}, Keywords = {Flood, Gorgan bay, Nutrients and Physicochemical parameters, Hydrochemistry, Environmental effects}, volume = {10}, Number = {38}, pages = {55-64}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.55}, url = {http://joc.inio.ac.ir/article-1-1514-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1514-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Morphological and Molecular Identification of Modiolus sp. PG (Bivalvia; Mytilidae) in Shibderaz, Qeshm Island}, abstract ={}, Keywords = {mussel, Persian Gulf, morphological features, molecular analysis, Modiolus sp. PG}, volume = {10}, Number = {38}, pages = {65-72}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.65}, url = {http://joc.inio.ac.ir/article-1-1532-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1532-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {38}, pages = {73-80}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.73}, url = {http://joc.inio.ac.ir/article-1-1533-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1533-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {The Effect of Water Column in Bathymetry by Landsat-8 (Case Study: The Southeastern of Caspian Sea)}, abstract ={}, Keywords = {Bathymetry, water column correction, southeastern of Caspian Sea.}, volume = {10}, Number = {38}, pages = {81-89}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.81}, url = {http://joc.inio.ac.ir/article-1-1534-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1534-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {38}, pages = {91-98}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.91}, url = {http://joc.inio.ac.ir/article-1-1535-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1535-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Estimating the Economic-Tourist Value and Factors affecting the Tourists’ Willingness to Pay to Use Recreational Services of Kish Island Beaches}, abstract ={}, Keywords = {willingness to pay, tourist value, conditional valuation, Kish Island, Persian Gulf.}, volume = {10}, Number = {38}, pages = {99-109}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.99}, url = {http://joc.inio.ac.ir/article-1-1536-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1536-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Identification and explaining of Competitiveness Critical Success Factors in Free Industrial -Trade Zones at the International Levels by using Grounded Theory}, abstract ={}, Keywords = {Key Success Factors, Free Industrial -Trade Zones, Competitiveness, Grounded Theory}, volume = {10}, Number = {38}, pages = {111-122}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.111}, url = {http://joc.inio.ac.ir/article-1-1537-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1537-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {38}, pages = {123-131}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.38.123}, url = {http://joc.inio.ac.ir/article-1-1538-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1538-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {1-8}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.1}, url = {http://joc.inio.ac.ir/article-1-1515-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1515-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {9-18}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.9}, url = {http://joc.inio.ac.ir/article-1-1517-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1517-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {19-26}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.19}, url = {http://joc.inio.ac.ir/article-1-1518-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1518-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {27-40}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.27}, url = {http://joc.inio.ac.ir/article-1-1520-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1520-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {41-54}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.41}, url = {http://joc.inio.ac.ir/article-1-1519-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1519-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {55-62}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.55}, url = {http://joc.inio.ac.ir/article-1-1521-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1521-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {63-72}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.63}, url = {http://joc.inio.ac.ir/article-1-1522-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1522-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {73-79}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.73}, url = {http://joc.inio.ac.ir/article-1-1541-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1541-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {81-88}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.81}, url = {http://joc.inio.ac.ir/article-1-1542-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1542-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {Temporal and Spatial Variations of the Surface Temperature and Salinity in the Amundsen Gulf and the Beaufort Sea in the Canadian Arctic Ocean}, abstract ={}, Keywords = {Climate change, Canadian Arctic Ocean, Amundsen Gulf, Beaufort Sea, Kriging}, volume = {10}, Number = {39}, pages = {89-100}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.89}, url = {http://joc.inio.ac.ir/article-1-1543-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1543-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {101-111}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.101}, url = {http://joc.inio.ac.ir/article-1-1544-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1544-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {113-124}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.113}, url = {http://joc.inio.ac.ir/article-1-1545-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1545-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {125-134}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.125}, url = {http://joc.inio.ac.ir/article-1-1547-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1547-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {39}, pages = {135-141}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.29252/joc.10.39.135}, url = {http://joc.inio.ac.ir/article-1-1548-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1548-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2019} } @article{ author = {AhmadiShalhe, Milad and Khodanazary, Ainaz and Hosseini, Seyyed Mehdi}, title = {Development of quality index method of Goldlined seabream Rhabdosargus sarba stored at refrigerator}, abstract ={Abstract A quality index method scheme for Goldlined seabream Rhabdosargus sarba stored at refrigerator was developed and its efficiency for freshness evaluation was compared with colorimeter, microbial and physicochemical methods. The quality index method results indicated a shelf life of 9 days. Physicochemical (TVBN, pH, TBARS and FFA) microbiological (mesophilic, psychrophilic and Enterobacteriaceae) and sensory analysis were carried out at 0, 3, 6, 9 and 12 days of storage. Variations in TVBN, pH, TBARS and FFA were observed throughout the storage period. Sensory analysis attributes exhibited significant variations and correlations with time storage, which is a showing of the fish´ loss of freshness. QI showed a linear relationship to storage time (QIM= 8.23× storage time-7.23, R2= 0.988), and the shelf life of Goldlined seabream could be estimated with an accuracy of ± 3 days. A regression analysis using the acceptability limit mesophilic counts (7 log cfu/g) showed that shelf life for Goldlined seabream Rhabdosargus sarba stored at refrigerator was 9 days. TVBN, pH, TBARS, microbiology, color and sensory analysis displayed very strong correlations with storage time, and they may be considered suitable indicators for evaluating of shelf life of Goldlined seabream stored at refrigerator.}, Keywords = {Rhabdosargus sarba, Quality index method, Refrigerator.}, volume = {10}, Number = {40}, pages = {1-8}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.1}, url = {http://joc.inio.ac.ir/article-1-1523-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1523-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Sadeghi, Parvin and Koohkan, Omid and Moradi, Ameneh}, title = {Histopathological assessment of Spleen in Pomadasys kaakan Cuvier, 1830 and Lutjanus johnii Bloch, 1792 in the Oman Sea}, abstract ={Abstract The aim of this study was to investigate the histopathologic changes of spleen tissues as biomarkers for assessing the health of common Pomadasys kaakan and Lutjanus johnii. In this research, 9 pieces of Pomadasys kaakan with a mean length 35.54 ± 4.35 cm and a mean weight of 512.6 ± 58.5 grams and 9 pieces of Lutjanus johnii with an average length of 22.5 ± 3.41 cm and mean weight 205.6 ± 22 grams of Ramin, Haft Tir and Konarak stations were caught using by gillnet. In order to observe the severity of tissue lesions, spleen tissue was separated and fixed in Bouin's solution. The tissue samples were prepared for histological studies according to standard histology methods, dehydration, clarification, parafinization. Then they were prepared by microtome cutting device with transverse sections of 5 microns thickness. After staining with hematoxylin-eosin, it was examined by a light microscope equipped with a digital photographic Camera. Results showed lesions in the spleen tissue such as melanomacrophage aggregations, blood vessel dilatation, vacuolation, necrosis, cell density, white pulp, plasma cells dilution. Lowest lesions in the spleen tissue of Pomadasys kaakan and Lutjanus johnii were observed at Ramin and Konarak stations. In the other hand, the highest lesions in the spleen tissue of both fish were recorded at Hatf Tir station. Which can be explained by the close vicinity of the station and the proximity of two Shahid Kalantari and Shahid Beheshti docks and high levels traffic of flotation.}, Keywords = {Tissue lesions, Spleen, Biomarker, Chabahar Bay}, volume = {10}, Number = {40}, pages = {9-18}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.9}, url = {http://joc.inio.ac.ir/article-1-1524-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1524-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {DaliliOsgouei, Arash and VafaeiPoursorkhabi, Ramin and Maleki, Ahmad and Ahmadi, Hami}, title = {Experimental Investigation of Wave Height Changes on the Base Shear and Overturning Moment of the Jacket Subjected to Random Waves in Deep Waters}, abstract ={Abstract The purpose of this study is to obtain the base shear force and overturning moment of the jacket at the three wave heights of 20, 23 and 28 cm. In this regard, the model of the jacket structure is constructed at a height of 4.55 meters, 402 meters in length and 4 meters in depth of water, exposed to random waves of the sea and is subjected to the JONSWAP spectrum in the flume of Fars National Marine Laboratory (NIMALA). Based on the results obtained, in all examinations, deep water conditions prevail. Considering the effective wave, for the wave height decreases from 28 to 23 cm, 14.17%, 23 to 20 cm, 52.9%, 28 to 20 cm, 74.57%, reduction of the base shear; and for the decrease of wave height reduction from 28 to 23 cm, 33.79%, 23 to 20 cm, 17.06%, 28 to 20 cm, and 56.63%, overturning moment reduction were obvious.}, Keywords = {Jacket, Random Waves, Wave Height, Base Shear, Overturning Moment}, volume = {10}, Number = {40}, pages = {19-28}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.19}, url = {http://joc.inio.ac.ir/article-1-1526-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1526-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Farkhani, Shirin and HadjizadehZaker, Nasser}, title = {Numerical Study on the Effects of Climate Change on Sea Surface Temperature in the Persian Gulf}, abstract ={Abstract This paper presents the assessment of effect of climate change on surface temperature of the Persian Gulf, using MIKE three-dimensional numerical model. Parameters such as air temperature, relative humidity, wind speed components, precipitation rate and the sky transparency have been utilized for hydrodynamics simulation of the region. ECMWF data in the Persian Gulf for the period of (1980-2000) and downscaled CORDEX data in RCP 8.5 scenario for the period of (2080-2100), have been implemented to the model. The effect of the climate change on sea surface temperature was evaluated by studying the differences between the average patterns in years 1980-2000 and 2080-2100. The results demonstrate that surface temperature in future; will increase in all seasons. This increment becomes smaller towards the deeper parts of the region. Based on conducted numerical modeling results, it is predicted that the water temperature in future climate, will have the highest increment in summer with the value of 4.6 °C. Spring will have the lowest increment with the value of 3.5°C. It is also predicted that the average sea surface temperature in the Persian Gulf will increase about 4.1 °C in autumn and 3.8°C in winter.}, Keywords = {Climate change, Persian Gulf, Sea surface temperature, CORDEX, MIKE 3FM}, volume = {10}, Number = {40}, pages = {29-38}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.29}, url = {http://joc.inio.ac.ir/article-1-1527-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1527-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Salehi, Jav}, title = {Legal Structure of Biodiversity Conservation and Exploitation of the Area’s Marine Genetic Resources}, abstract ={Abstract: Conservation and exploitation of the genetic resources of non-national maritime areas need to a legal structure that has not been foreseen at the time of the adoption of the Convention on the Law of the Sea. The Convention on Biological Diversity Considers Marine Genetic Resources in the Territory of States Parties, While the Convention on the Law of the Sea does not provide for the exploration of genetic resources of the Free Seas and the Area. This paper seeks to analyze the role of the Convention on Biological Diversity and the Convention on the Law of the Sea in shaping the future legal structure and exploiting deep sea genetic resources. The results of this research show that identification of genetic resources in the Convention on Biological Diversity from one side and identifying the common heritage of humankind beings in the Convention on the Law of the Sea, on the other hand, can be used to provide a model for the establishment and approval of a proposed biodiversity implement agreement in areas beyond national jurisdiction.}, Keywords = {Marine Genetic Resources, Area, Convention on Biological Diversity, Convention on the Law of the Sea, Common Heritage of Mankind, Freedom of High Sea.}, volume = {10}, Number = {40}, pages = {39-44}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.39}, url = {http://joc.inio.ac.ir/article-1-1528-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1528-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Khanjani, Mohammad Hossein and Ghaedi, Gholamrez}, title = {Evaluation of Fertilization Indices and Stress Response of Rainbow Trout Oncorhynchus mykiss (Walbaum, 1792) in Different Temperatures}, abstract ={Abstract Temperature is one of the important factors influencing the growth and reproduction of aquatic animals. In this research, the effect of temperature on fertilization indices and stress response of rainbow trout was investigated. Two treatments of temperature, 14.5 and 17.2°C in three replications were considered. Rainbow trout eggs (average weight of 81.30 ± 1.91 mg) with a density of 5000 eggs were stocked per each trough and were exposed to different temperatures until hatching stage. According to the results, it was found that the duration of eyed and hatching stages was shortened with increasing the temperature, and also the percentage of hatching and active swimming decreased. The values of 32.66% and 30% were obtained for hatching and active larvae, respectively, at 17.2 °C, which showed significant difference with another treatment. Responses to the stress of temperature in the early stages of the egg were not noticeable, but the effect of stress on embryos grown at various temperatures caused differences in the response of cortisol to stress at the hatchery stage, which led to an increase in the cortisol level at hatching compared to eyed-stage. When the fish are exposed to stress in the embryonic period, the delayed response of cortisol to stress does not occur immediately after hatching. Finally, the results indicate that the hypothalamus-pituitary- Inter‎renal (HPI) axis is activated at the hatching stage and responds to environmental stresses (as temperature).}, Keywords = {Fertilization indices, cortisol, stress, embryo, Rainbow trout}, volume = {10}, Number = {40}, pages = {45-54}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.45}, url = {http://joc.inio.ac.ir/article-1-1529-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1529-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Ghayoumi, Razieh and Ebrahimi, Elham}, title = {Predicting the potential distribution of Avicennia marina across mangrove forest area in Southern Iran using Biochemical datase}, abstract ={Abstract: Distribution and ecological preferences of aquatic organisms have often not been studied. Species Distribution Modeling can improve our knowledge and enhance the ecosystem management and protection. This study conducted in 2017 with the objective of predicting the potential suitable habitat for Avicennia marina and the most important environmental factors influencing its distribution. Mangroves as the world's valuable habitats with high biomass and productivity, play an important role for fauna and flora both land and sea, providing shelter, nursing and feeding grounds. In this study, 9 biochemical variables from Bio-ORACLE database were compiled. The correlation coefficient between each pair of variables was calculated to identify highly correlated variables and reduce multicollinearity. Finally, the distribution model was produced with MaxEnt. Results show that suitable habitats for mangrove distribution have placed in the Eastern part of the Persian Gulf and the Oman Sea. Moreover, Chlorophyll-a minimum range, summaximum and pH were found to be the top variables affecting the distribution. Results can be used in a decision-making framework that helps conservation outcomes deliver as a result of managers’ strategy.}, Keywords = {Mangrove forests, Avicennia marina, Ocean dataset, Species Distribution Modeling}, volume = {10}, Number = {40}, pages = {55-63}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.55}, url = {http://joc.inio.ac.ir/article-1-1530-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1530-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Owlad, Elaheh and Khaleghi-Zavareh, Hasan and Irannejad, Parviz and Ghafarian, Parvi}, title = {Long-term Analysis of Sea Surface wind field over the Persian Gulf Basin, Using reanalysis data, NCDC-BSW and in situ observations during a 23-year period}, abstract ={Abstract Sea surface wind speed and direction data with high spatial and temporal resolution is essential to having realistic perception and being able to forecast Air-Sea interaction. Lack of enough field measurements over the Persian Gulf has been always a serious issue in meteorological studies over this area. The object of this study is to determine the mean wind field over the Persian Gulf and find out the trend of the wind in this area. To do so, three data sets including: buoy and synoptic observed data, ERA-Interim reanalysis data and blending satellite retrieved data (from NCDC-BSW) are used for long-term analysis of surface wind field over the Persian Gulf. After a comparison of in-situ observation data with estimations performed by the reanalysis model and satellite data and verification of these datasets, wind fields were extracted using satellite and reanalysis data and the long-term wind trend was retrieved from 1988 to 2010 for 23 years. Results illustrate a relative increase in the wind speed estimated from reanalysis data and a relative decrease in the wind speed estimated from satellite data. Considering everything, it could be concluded that the satellite data has had better performance in estimating wind speed. So that, long-term investigation of the increase-decrease trend in wind speed at divergent stations indicate an effect of summer and winter Shamal on the maximum and minimum wind speed and regime, that were estimated in the Persian Gulf region. Considering this effect, the highest winds in winter occur near Bushehr area while the maximum winds in summer are seen in lower latitudes and near the center of the Persian Gulf.}, Keywords = {Wind field, reanalysis data, Satellite data, long-term, Persian Gulf, Shamal wind.}, volume = {10}, Number = {40}, pages = {65-74}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.65}, url = {http://joc.inio.ac.ir/article-1-1550-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1550-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {40}, pages = {75-84}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.75}, url = {http://joc.inio.ac.ir/article-1-1551-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1551-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Shariatmadari, Davood and Siadatmousavi, Seyed Mostafa and Ershadi, Cyrus}, title = {Enhanced predictions of tides in the Persian Gulf through data assimilatio}, abstract ={Abstract Hydrodynamic models are widely used for simulating water level and oceanic current; however due to uncertainties involved in this process such as accuracy of input data or realization of the governing equations, there are some errors in the simulation results. Data assimilation is one of the effective solutions to avoid and to limit some of these errors. This manuscript evaluates how Ensemble Kalman filter, one of the most advance assimilation techniques, can enhance water elevation predictions in the Persian Gulf. The open source Delft3D FM was used as a hydrodynamic model and open source code of Open DA was employed to apply Kalman Filter. The Open DA was coupled inside the code of hydrodynamic model to improve its performance. We have setup several experiments to estimate the best number of groups, error parameter of observations, error parameter of open boundary, and the most effective station for assimilation. The results show that the data assimilation can effectively improve the hydrodynamic model results and can be used for real applications.}, Keywords = {Data assimilation, Ensemble Kalman Filter, Delft3D-FM, Open DA, tide, Persian Gulf}, volume = {10}, Number = {40}, pages = {85-95}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.85}, url = {http://joc.inio.ac.ir/article-1-1552-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1552-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {salimi, esmat and sakhaee, nasrin and nurinezhad, mohsen and savari, ahmad and ghaemmaghami, sadroddi}, title = {Investigating of Biological Health of Mangrove Forest in Nayband Bay Using Macrobenthic Communities}, abstract ={Abstract The purpose of this study is to survey the ecological health of mangrove forest in Nayband bay by Shannon diversity index and determine the environmental factors effective in distribution of macrobenthic. 6 transects along coasts of Nayband bay were sampled for macrobenthos identification and enumeration. In each transect 3 stations were selected in perpendicular line to the beach. Physicochemical parameters such as Temperature, Salinity, Turbidity, Phosphate, Nitrate, Chlorophyll etc. were measured in addition to sediment grain size and TOM. Totally 60 macrobenthos species identified. Gastropods and Bivalves in Mollusca phylum were the dominant group with the contribution 48% of total macrobenthos population.  Pirenella cingulata and Protapes gallus were the dominant species in Gastropods and Bivalves respectively. Maximum average total numbers of benthos were 5361.56 and 5584.78 individual/m2 in winter and summer respectively and minimum average number was 1957.56 individual/m2 in spring. Parametric statistical tests showed significant difference between number and frequency of species in different seasons and station (p<0.05). CCA analysis showed that salinity, turbidity and TOM are an effective factors in distribution of crustacean and bivalves. Phosphate, silt & clay and chlorophyll a have positive impact and sand present and temperature have negative impact on distribution of Gastropods. Temperature is important factor on density of polychaetes. Shannon diversity index showed that the studied area is moderate in terms of biological health.}, Keywords = {Nayband bay, Mangrove forest, Macrobenthos, CCA, Physico-chemical factors}, volume = {10}, Number = {40}, pages = {97-112}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.97}, url = {http://joc.inio.ac.ir/article-1-1293-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1293-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {}, title = {}, abstract ={}, Keywords = {}, volume = {10}, Number = {40}, pages = {113-122}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.113}, url = {http://joc.inio.ac.ir/article-1-1549-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1549-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} } @article{ author = {Absiah, Saman and Ghanemi, Kamal and Nikpour, Yadollah}, title = {Investigation the Distribution of Copper, Iron, and Lead Compounds in Surface Sediments of Musa Estuary by Sequential Extraction}, abstract ={Abstract Determination of total amount of sediment metals can be used as a measure of pollution in the area, but it alone cannot show the mobility potential, toxicity, and availability of various metal compounds in the sediment. In this research, a five-stage sequential extraction process was used to extract various compounds of iron, copper and lead from sediments. Eighteen samples were collected from different stations in Musa estuary, Persian Gulf, including Majidiyeh, Ghazaleh, Ja'fari, Musa, Merimous, and Ghanam. After drying and homogenization, 1.0 g of each sediment was extracted with the help of selective reagents within a given temperature and time. After each extraction, the specimen was exposed to subsequent extractions to complete all five steps. The amount of metals ions in separated solutions were measured by an atomic absorption instrument. The results showed that most of the metals were in the reducible oxides and residual sections. The highest amount of copper compounds in the exchangeable portion was related to Majidiyeh (5.3%), and for the lead was related to Ja'fari (19.6%). Therefore, it can be said that the mobility potential of copper and lead ions in Majidiyeh and Ja'fari stations, which are under the influence of industrial and urban activities, is higher than the rest. Comparison of the average distribution of copper and lead compounds in the sediments of Musa estuary with the rest of the world showed that although the distribution pattern of metal compounds is quite similar, the amount of these compounds in sediments is significantly less than the other compared regions.}, Keywords = {Fractionation studies, heavy metals, sediments, Musa estuary}, volume = {10}, Number = {40}, pages = {123-134}, publisher = {Iranian National Institute for Oceanography and Atmospheric Science}, doi = {10.52547/joc.10.40.123}, url = {http://joc.inio.ac.ir/article-1-1554-en.html}, eprint = {http://joc.inio.ac.ir/article-1-1554-en.pdf}, journal = {Journal of Oceanography}, issn = {1562-1057}, eissn = {2476-6755}, year = {2020} }