List of Articles Open Access Article Abstract Page Full-Text 1 - Nest Count of Breeding Waterbirds and Terrestrial Birds in Khor Musa in spring of 2015 Behrouz Behrouzi-Rad Open Access Article Abstract Page Full-Text 2 - Evaluation of the performance of Hospital Waste Water Treatment with Activated Sludge and Extended Aeration System using Activated Carbon for the Removal of Lambda-cyhalothrin Pesticide M. Mamaghanifar L. Yadegarian H. Ghafourian Open Access Article Abstract Page Full-Text 3 - Determination of Mercury, Lead, Cadmium and Arsenic in Muscle and Liver of Liza klunzingeri from Hendijan Seaport M. Velayatzadeh E. Shahri Open Access Article Abstract Page Full-Text 4 - Physical and Chemical Properties of Ships Ballast Waters and the Sea Water around Khark Petrochemical Terminals, Persian Gulf adel tangestani B. Amraee G. Delbar Open Access Article Abstract Page Full-Text 5 - The Effect of Changes in Wave Height on Erosion Pattern and Sedimentation in Inlet A. Karami Khaniki M. S. Kiaee Open Access Article Abstract Page Full-Text 6 - Study on the structure of phytoplankton population in the Lar dam lake F. Karbalaee Open Access Article Abstract Page Full-Text 7 - Study on Trace Elements (Mo, Cu, Hg and As) in Water and Sediments in Aras River in East Azerbaijan Province M. Ramin H. Nasrollahzadeh Saravi M. Dostar H. Ghasemi N. Pourang M. Baniamam Open Access Article Abstract Page Full-Text 8 - Assessment of Coastal Residential Structure Stability against Tsunami Waves Afshin Mohseni Arasteh K. Lari N. Hashemi Pour