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Capture includes fish, crustaceans, molluscs, etc. [1] [2] [3] World capture fisheries and aquaculture production, from FAO's Statistical Yearbook 2021 [ 4 ] ↑ By species group
Marine aquaculture is a fast developing sector, with a focus on mussels, oysters, abalone, seaweeds, and prawns. Of these, mussel farming is the best established. Abalone culture is now well established, centred in the Hermanus area on the Cape south coast. There is also an experimental offshore farm (cage culture) off Gansbaai for salmon." [1]
World capture fisheries and aquaculture production by species group [1]. The global commercial production for human use of fish and other aquatic organisms occurs in two ways: they are either captured wild by commercial fishing or they are cultivated and harvested using aquacultural and farming techniques.
The fisheries sector accounts for 3% of Morocco's GDP. The government estimates the number of direct and indirect jobs at 400,000 (including 104,000 fishermen). [4] The small-scale fisheries sector (100,000 people) lags far behind other branches of the fishing industry owing to the lack of infrastructure and of harbour facilities and plant.
Due to the limited availability of fish seed, carp has fallen out of favour, and North African catfish, along with Nile tilapia, has taken its place. Although fish farming in Uganda has so far been pond- and subsistence-based, the growing interest in commercial aquaculture is providing an impetus towards cage-culture based aquaculture.
The wild Atlantic salmon fishery is commercially dead; after extensive habitat damage and overfishing, wild fish make up only 0.5% of the Atlantic salmon available in world fish markets. The rest are farmed, predominantly from aquaculture in Norway, Chile, Canada, the UK, Ireland, Faroe Islands, Russia and Tasmania in Australia.
Raising fish in cages in a lake in a relatively undeveloped environment. Urban aquaculture employs water-based systems, the most common, which mostly use cages and pens; land-based systems, which make use of ponds, tanks and raceways; recirculating systems are usually high control enclosed systems, [clarification needed] whereas irrigation is used for livestock fish.
In the 1960s, 1970s, and 1980s, total production of fish was estimated at between 60,000 and 120,000 tons per year. [1] But because these figures represent production for the Logone River and Lake Chad, which are shared with Cameroon, Niger, and Nigeria, Chad's fish production amounted to an estimated 70 percent of the total. [1]