GENERATION OF TSUNAMI IN THE ADRIATIC AND IONIAN SEA AND THEIR POSSIBLE EFFECT ON MARINE ECOSYSTEMS

This study represents a simple model for the changes calculation that coastal structure of the Adriatic and Jonian Sea may undergoes by a tsunami impact in the maritime dimension. In spite of the fact that the great majority of seismic tsunami is generated in ocean domains, smaller basins as the Adriatik and Ionian Sea sometimes experience this phenomenon. In this investigation we study the tsunami hazard associated with Adriatic and Ionian Sea fault system. The study has been carried out based on the coastal structure of Adriatic Sea, in the subsequent studies, that how this structure will affect on the tsunami wave. Tsunamis are one of the most destructive natural hazards that affect the coastal areas. Its waves are capable of destroying the objects on the coast and re-shaping the coastal geography, geomorphology and ecosystem. These waves have unusually long-wavelength in excess of 100 kms, generated in the open sea and transformed into a train catastrophic oscillations on the sea surface close to coastal zones. After the tsunami wave, the coastal structure undergoes some changes, and these changes will directly affect in the marine ecosystem. The sediment structure is formulated based on a previous approaching model built by Bruce E. Jaffe and Guy Gelfenbuam, 2007. (A. Daberdini, Rr. Ormeni, 2013).This calculation model is approached based on our coastal structure. The difference on the deposit granule size has more impact on the tsunami wave speed, rather than its thickness. The result of this study shows how to built an approximate model for the structuring that the Albanian coast may undergoes by the seismic activity, which in some cases may develop tsunami with marine dimension. The Physical structure may damaged by the force of the wave itself, physical removal of flora and fauna and increased sediment load which could kill sediment sensitive species and sea grasses by smothering. Chemical changes may included saltwater intrusion, eutrophication (enrichment) of the water resulting from increased runoff, raw sewage and decomposition of flora and fauna. Non biodegradable waste such as plastics may contribute to a buildup in marine debris.