Generally, a fishery is an entity engaged in raising or harvesting fish which is determined by some authority to be a fishery. According to the FAO, a fishery is typically defined in terms of the "people involved, species or type of fish, area of water or seabed, method of fishing, class of boats, purpose of the activities or a combination of the foregoing features". The definition often includes a combination of fish and fishers in a region, the latter fishing for similar species with similar gear types.
A fishery may involve the capture of wild fish or raising fish through fish farming or aquaculture. Directly or indirectly, the livelihood of over 500 million people in developing countries depends on fisheries and aquaculture. Overfishing, including the taking of fish beyond sustainable levels, is reducing fish stocks and employment in many world regions.
The Vezo is the term the semi-nomadic coastal people of southern Madagascar use to refer to people that have become accustomed to live from sea fishing. The Vezo speak a dialect of the Malagasy language, which is a branch of the Malayo-Polynesian language group derived from the Barito languages, spoken in southern Borneo. They currently populate most of the littoral zone along Madagascar’s west coast between Toliara and Mahajanga. They do not identify with a particular Malagasy ethnic group but instead with their way of life. Because of their semi-nomadic marine migrations, their population is difficult to determine and has been estimated by counting the dugout canoes called pirogues (lakanas in Malagasy language) around Madagascar.
"Vezo" literally means the people who fish, but also has been known to mean 'to struggle with the sea'.