1 1562-1057 Iranian National Institute for Oceanography and Atmospheric Science 1197 Contamination and Ecological Assessment of Heavy Metals (Hg, Cd, Pb, Ni, V, Cu) in Surface Sediments of Chabahar Bay Mirza Roozbeh Moeinaddini Mazaher 1 10 2017 8 31 1 9 10 07 2017 19 11 2017 The aim of this study was to measure the concentration of heavy metals (Hg, Cd, Cu, Pb, Ni and V) in marine sediments as well as to determine the potential harmful effects of these heavy metals using Combined Pollution Index (CPI) and Potential Ecological Risk Index (PERI) at seven stations in Chabahar Bay. From each station, 3 samples of surface sediments (0-5 cm) were collected using Van Veen Grab and samples were extracted and analyzed according to the standard methods. The concentration levels of measured heavy metals were in the order of V>Ni>Pb>Cu>Cd>Hg . Contamination assessment based on CPI shows that the sediment samples in the study area were heavily contaminated with the CPI>1 except for Pozm Station. The potential ecological risk indices of Pb, Cu, Ni, were lower than 40, which indicated slight potential ecological risk of all stations. The results showed that the ecological risk level of heavy metals in the sediments of Chabahr Bay were low to very high. 
1198 Investigating the Performance of Caisson Seawalls against Waves-Induced Force Rahbani Maryam Esmaeili Mehdi Karami khaniki Ali 1 10 2017 8 31 11 18 11 09 2017 18 12 2017 The aim of present study is to estimate the wave-induced force acting on a vertical rigid, a semi-porous and a porous caisson-type seawalls using physical modeling. For this purpose, random sea waves in wide range of wave heights and periods, with variety of water depth were considered for the experimental test. Comparison of the measured values of maximum wave forces (Fmax) for three walls revealed that the wave-induced forces acting on the semi-porous and porous seawalls were more than the impermeable plane seawall. These increaments were calculated as about 28% and 46%, respectively. The semi-porous and porous seawalls showed better performance in wave energy dissipation and in wave reflection decreases in comparison with the rigid impermeable seawall. In addition, it was found that the Fmax increased with the increase of the wave steepness (Hs/Lp) and the decrease of the relative water depth (d/Lp). Based on the lab measurements and multiple regression analysis, new empirical equations have been proposed to predict the maximum wave force acting on each of the above mentioned seawalls. 1199 Morphological and Molecular Investigation of Sargassum vulgare and Sargassum fallax (Fucales, Sargassaceae) from the Coasts of Bushehr Nuclear Power Plant, Persian Gulf Iraninasab Sudabeh Archangi Bita Amini Faedeh Sakhai Nasrin 1 10 2017 8 31 19 26 06 06 2017 25 11 2017 In this research, morphological and molecular identification of dominant brown algae species from Bushehr Nuclear Power Plant coastal areas were investigated. Sampling of marine algae was carried out during autumn and winter 2014 from intertidal areas. Detailed morphological observations were done using valid identification keys and microscope. To undertake molecular identification, marine algae genome was extracted first using modified CTAB method followed by amplification of gene fragments using nuclear ribosomal ITS-2 primer. Genetic analysis was undertaken. The results of Blast in GeneBank and phylogenetic analysis confirmed identification of two species of dominant brown algae as Sargassum vulgare and Sargassum fallax with 100% bootstrap. Hence, despite taxonomic uncertainty of sargassum genus, integrating the results of morphological observations and ITS-2 gene fragment confirmed identification of both sargassum species with 100% bootstrap.  1200 An Assessment of Heavy Metals in Coastal Sediments of the Caspian Sea, Guilan Province Mohammedi Galangash Mohsen Solgi Esa Bozorgpanah Zahra 1 10 2017 8 31 27 34 21 02 2017 08 07 2017 The purpose of this study was to measure the concentrations of nickel, vanadium, molybdenum, copper, iron, lead and chromium in coastal sediments collected from 5 sampling sites in Guilan province. Three composite samples were collected from each sampling site in October 2012. After sample preparation, the specimens were analyzed using ICP spectrophotometry. The accumulation pattern of metals in sediment were obtained in the form of V>Cr>Ni>Cu>Pb>Fe>Mo. The results showed a high correlation between metals at all sampling sites. In this study, the highest concentration of vanadium and chromium were obtained from Anzali station and the highest concentrations of nickel and lead were observed in Chubar site. The Haknson ecological risk assessment index demonstrated that the sediments were classified in the class of zero at all sites. Cluster analysis showed that the iron source was independent of the other elements sources. ERL & ERM levels of nickel as an indicator of oil pollution revealed that the region affected by oil pollution, hence continues environmental monitoring is essential at the study areas. 1201 Application of Leaf, Stem and Root of Mangrove (Avicennia marina) Collected from Nayband Bay in Bushehr Province for Biosynthesis of Silver Nanoparticles Abdi Vahideh Sourinejad Iman Yousefzadi Morteza 1 10 2017 8 31 35 42 08 07 2017 02 12 2017 In present research, the biosynthesis possibility of silver nanoparticles (AgNPs) was investigated using the aqueous extract of leaf, stem and root of native mangrove plant Avicennia marina, collected from Nayband bay in Bushehr province. Silver nanoparticles were synthesized through reduction of silver ions by secondary metabolites from the extract of Avicennia marina. Among the different plant parts, the leaf extract showed the maximum spectral absorption and synthesis yield of AgNPs. Absorption spectra in 420 nm confirmed the synthesis of AgNPs. The crystalline nature of AgNPs was confirmed based on the XRD pattern. TEM images showed that the size of nanoparticles was in the range of 1 to 75 nm. The distribution size histogram revealed that most of the particles were in the range of 10-15 nm and the mean size of nanoparticles was 17.3 nm. FE-SEM analysis showed the size ranges of the nanoparticles between 15 to 43 nm. EDS spectrum confirmed the presence of elements like silver, carbon, chlorine, nitrogen and oxygen in the synthesized nanoparticles and silver had the maximum percentage of 51.6 %. FTIR spectrum indicated the presence of different functional groups like amines, alcohol, aromatic loops, alkanes, phenolic groups and alkyl halides in the synthesis process. The results of this research revealed that silver nanoparticles could be synthetized by eco-friendly biological procedures without mediating harmful chemical using reductant components of extracts of plants such as mangroves. 1202 Identifying and Prioritising Effective Factors on Amirabad Port Marketing Services using AHP Model Harati Mokhtari Abbas Sadjadi Parsa Jafar Alahyari Elham 1 10 2017 8 31 43 52 06 06 2017 17 12 2017 The study paid to identify and prioritize effective factors on Amirabad Port marketing services. The goal was to suggest some solutions for improving the position and throughput of Amirabad port in the region and in the whole market. Ports always have a vital role in international transportation. As a matter of fact, an appropriate port schematization can have an important effect on better services to the port customers. Port schematization leads to attract more customers and causes developments in ports and regions. One of the main port schematization is port marketing. Since Amirabad Port is a third generation port in Iran, it is necessary to use marketing principles for its growth and development in marketing. Analysis of the data was carried out using AHP method and Expert choice 11 software. According to the results, prioritizing, attention to the improvement of services and facilities at port hinterland, establishment of a knowledge management system in the port, offering support and encouragement packages to the port customers, consideration of the port personnel job satisfaction, organization and participation in national and international marine exhibitions, and finally better introduction of port capabilities, are among the most important offered solutions. 1203 Prediction of Gorgan Bay Inlet Performance and Morphological Stability Roodbari Shahmiri Saeid Adjami Mehdi Khoshravan Homayoon 1 10 2017 8 31 53 65 12 04 2017 18 12 2017 The aim of this research was to study the stability and performance of Gorgan Bay and Miankaleh sand spit in order to find out the mechanisms of Gorgan Bay closure. According to the result of Miankaleh coasts’ numerical model (by DHI Mike21 package), wave energy and current speed reduced from west to east. Simultaneously, the sensitively of coasts to local storm surge due storm increased. The most probable storm surge at eastern coasts was about 40 centimeters and can make 15-20 cm sea level rise. Ashooradeh was a low wave energy mode region. The currents out of the bay were mostly from west to east and in the bay were counter clockwise. The total rate of sediment discharge in Gorgan inlet was 0.001 m3/sec/m that resulted in 1 cm/day bed level changes in inlet, while the rate of total sediment discharge in Miankaleh beach was less than 0.00002 m3/sec/m. Finally, the Gorgan bay inlet stability study (by Escofier popular model) showed that under the current conditions of the storm and low rate of sediment transport from upstream, it remains stable.