Medidas de Gestao das Pescarias Marinhas e Aquicultura 2019 The State of World Fisheries and Aquaculture 2018 | Page 79

THE STATE OF WORLD FISHERIES AND AQUACULTURE 2018 excluded. The higher proportion in the case of traded value points to the fact that heavily traded aquaculture species, particularly salmon, shrimp and some bivalves, have a relatively high unit value. In addition to the production process itself, aquaculture differs from capture fisheries in many fundamental ways, including business and industr y structure, inputs, risk factors, environmental impact and infrastructure requirements. Each of these differences has implications for the dynamics and development of global trade in fish and fish products. third quarter of 2017 was 157, compared with 147 in the third quarter of 2016 and 138 for the same period in 2015 (Figure 23). This upward trend is observed in most species groups, both farmed and wild, reflecting a combination of improved economic conditions and supply shortages for a number of key species. Over 90 percent of the quantit y (in live weight equivalent) of trade in fish and fish products consisted of processed products (i.e. excluding live and fresh whole fish) in 2016, with frozen products representing the highest share. The high perishabilit y of fish notwithstanding, consumer demand and innovative chilling, packaging and distribution technolog y have led to increased trade in live, fresh and chilled fish, which represented about 10 percent of world fish trade in 2016. About 78 percent of the quantit y exported consisted of products destined for human consumption. Much fishmeal and fish oil is traded because, generally, the major producers (in South America, Scandinavia and Asia) are not the same countries as the main consumption centres (in Europe and Asia). As aquaculture producers can exercise a greater degree of control over the production process, aquaculture supply volumes are more predictable in the short term. Vertical and horizontal integration have created economies of scale and logistical efficiencies that allow large consolidated producers to supply consistent volumes of consistent size and qualit y to an array of international markets, even in fresh or chilled form. The aquaculture sector is still susceptible to substantial shocks due to disease or other environmental events, however, and the impacts of these events on prices are transmitted across international markets increasingly efficiently. Between markets for wild and farmed fish, producers in one sector will generally be exposed to price trends in the other within the same market segment, although the degree of integration varies significantly across species. There is no overall consensus as to whether farmed fish prices will always respond to those of wild fish or vice versa, and whether one commands a natural premium. These dynamics depend on the species, the product form and the particular market. However, some heavily traded species such as salmon and shrimp do appear to display a significant degree of integration in terms of prices, suggesting that increased supply from aquaculture in these markets has been and will remain a major influencing factor in price trends. The value given above for exports of fish and fish products in 2016, USD 143 billion, does not include an additional USD 1.7 billion from trade in seaweeds and other aquatic plants (57 percent), inedible fish by-products (32 percent) and sponges and corals (11 percent). Trade in aquatic plants increased from USD 60 million in 1976 to more than USD 1 billion in 2016, with Indonesia, Chile and the Republic of Korea the major exporters, and China, Japan and the United States of America the leading importers. Owing to the increasing production of fishmeal and other products derived from fish processing residues (see the previous section, “Fish utilization and processing”), trade in inedible fish by-products has also surged, up from USD 9 million in 1976 to USD 0.5 billion in 2016. Salmon and trout Overall, international prices of fish were relatively high in 2017. With a base year of 2002–2004 = 100, the FAO Fish Price Index (developed in cooperation with the University of Stavanger, Norway, and with data support from the Norwegian Seafood Council) seeks to capture price trends in the most frequently traded species groups and for farmed and wild fish and fish products. The average index value over the Trade in salmon has increased at an average of 10 percent per year in value terms since 1976, and since 2013 it is the largest single fish commodit y by value (Table 17). This growth has been partially driven by rising incomes and urbanization in emerging markets, particularly in East and Southeast Asia, but salmon has also retained a » | 63 |