Investigating NaturalPhysicalAdsorption ofOilContent byMangroves, A field-scale study

Abstract

Mangroves are one of the main important species which have critical function in ecological<br />processes in the coastal habitats. Recent studies have focused on long term effects such as biological and<br />chemical responses and reactions of ecosystems. In this research, short term response of Avicennia marina's<br />pneumatophores as one of substantial parts of mangroves has been considered while facing the oil slick in tidal<br />waves. Factorial experimental design was conducted considering three factors, each one in two levels in both<br />spring and winter seasons, separately. Experiments were carried out in the north coastline of the Persian Gulf<br />where one of the mentioned species habitat in the NaybandNatural National Park of Iran is located. Experimental<br />evidences on the studied blocks were investigated by experimental analysis, accurately. Results revealed the<br />main effective factors which can raise the damages of oil spill in the mangroves habitat through oil adsorption<br />on the pneumatophores. Investigations showed the concentration level of the main significant factors that can<br />affect the adsorption process. The second significant factor on physical adsorption is retention time, also<br />known as contact time. Tests results indicated that adsorption in winter is generally more than that in spring.<br />No significant effect of day or night time on the physical oil adsorption by pneumatophores was traced.