During our cruise beginning in Venice in mid November we experienced what they are talking about in this article, in that all our Turkey ports were canceled and replaced by three more Greek ones and one in Montenegro.



"Fears of terrorism in parts of the Mediterranean basin have sent the region's share of global capacity to a 10-year low, according to the report by Risposte Turismo, a cruise research firm based in Venice.

Only 15.5% of cruise ship capacity will sail in the Med this year, down from 18.3% last year and 16.4% in 2007.Francesco di Cesare, president of Risposte Turismo, said the decline is the result of a mix of factors, among them the "no-go zones for cruise ships," which currently include destinations such as Turkey, Tunisia and Egypt." 



http://www.travelweekly.com/Cruise-Travel/Cruise-lines-lower-Med-capacity-based-terrorism-fallout