We talking about the coast of Eastern Karaburun Peninsula. We have not started this project yet, therefore there is no actual data about seawater charachteristics of there. However, according to a study, the bottom water temperature in average is 15.52°C in the spring, 16.38°C in the summer, 16.85°C in the autumn and 15.03° C in the winter. The surface seawater salinity in average is ‰39.04 in the spring, ‰39.51 in summer, ‰38.56 in autumn and ‰38.33 in winter.
As also indicated by Dr Yakup Erdem above, more information is needed to commemt on your question.
However, you may find some useful information in Galgani et al. 2005. Deep-sea caging of the mussel Mytilus galloprovincialis: Potential application in ecotoxicological studies. Chemistry and Ecology, 21(2): 1–9.