Many people's livelihoods depend on the ocean and thesea. Greece, for example, has over 3000 islands, of which around 160 areinhabited. As depending on the sea to earn a living is dubious, islanders havealways been an extrovert kind of people, becoming intrepid seafarers andexcellent merchants. On the other hand, the Bajau peoples of South Asiacontinue to live a seaborne lifestyle, making use of small wooden sailingvessels. The boat dwelling Bajau are exclusively seafaring people, living offthe sea by trading and subsistence fishing.
Ocean fishing accounts for 80% of the world fishcatch. Oceanshave always been an important and reliable source of food. Considering theocean's vast size in comparison to land, it is easy to assume that we couldnever deplete it resources. Recently, overuse of the ocean by man has led tothe decline in population of some commercially caught fish. Overfishing, is areal problem that does not have an easy solution
People living near thesea are said to lead a healthier lifestyle and indeed Ikaria, a small Greekisland in the Aegean Sea has recently been pronounced "the island where peopleforget to die" by the New York Times.