دراسة بيئيّة لبطنيّ القدم Patella caerulea على شاطئ مدينة اللاذقية

This research is a study of distribution of Patella caerulea in four locations of the Latakia shore different from each other by Substrate nature and their exposure to pollution sources. They are as follow : Afamia (A),Ibn Hani (B) ,harbor fishing of Tower Islam (C), and the sandy beach of Tower Islam (D). This study was achieved between January 2012 and January 2013 ,The samples were collected manually from the Supralittoral , Littoral and Sublittoral region(depth of two meters).The results of this study showed the following: 1 – The area A is the most suitable for the growth and reproduction of the Patella caerulea, which recorded the highest value of biomass reaching ( 3990.2 gr / m²), and the number of individuals (2128 ind /m²) . 2 - The area C recorded the lowest value of biomass (2872.47 gr/ m²) and the number of individuals (1632 ind / m²). 3 - Patella caerulea is consederied a Eurybiont as it was found in all the study areas . 4 - Patella caerulea is comercially important species .