Medidas de Gestao das Pescarias Marinhas e Aquicultura 2019 The State of World Fisheries and Aquaculture 2018 | Page 28

PART 1 WORLD REVIEW on valuable species in the fishing industr y) or both, and whether such growth is sustainable in the long term. Catch statistics by FAO major fishing area for the last two available years, as well as the 2005 –2014 average, are presented in Table 4. Clear tendencies can be noted if fishing areas are roughly classified in three main categories (Figure 4): „ „ temperate areas (areas 21, 27, 37, 41, 61, 67 and 81); „ „ tropical areas (areas 31, 51, 57 and 71); „ „ upwelling areas (areas 34, 47, 77 and 87). Within the shrimp group, the performance of Argentine red shrimp (Pleoticus muelleri) remained outstanding in 2016. In The State of World Fisheries and Aquaculture 2012 (FAO, 2012d, pp. 21–22), large fluctuations in abundance of this species were noted because, after a major drop in 2005, its catches recovered and exceeded the previous peak, in part as a result of management measures implemented by national authorities. After a minor decrease in 2012, catches of Pleoticus muelleri have been growing at a 22 percent average annual rate and in 2016 doubled those of 2011. After two peaks in 1988 and 1997 at about 45 million tonnes, catches in temperate areas decreased to 37 million tonnes in 2009 but then recovered to 40.5 million tonnes and 38.9 million tonnes in 2015 and 2016, respectively. However, this rebound can be attributed to China’s catches of marine fishes nei in area 61, the Northwest Pacific, of which a good portion, as explained above, are distant-water catches that include fish caught in other areas. Catches of much lower-priced small pelagics – which in many developing countries are important for food security but in others are largely processed into fishmeal and fish oil – have been rather stable, with the total annual catches of the 13 small pelagic fishes listed in Table 3 averaging about 15 million tonnes. Following a taxonomic split that has become widely adopted in the scientific literature, catches in Atlantic areas previously classified as Pacific chub mackerel (Scomber japonicus) are now classified as Atlantic chub mackerel (Scomber colias). All other temperate areas have shown decreasing trends for several years, with the sole exception of area 67, the Northeast Pacific, where catches in 2016 were higher than the average for 2005–2014 thanks to good catches of gadiform species (Alaska pollock, Pacific cod [Gadus macrocephalus] and north Pacific hake [Merluccius productus]). Recent drops in catches in areas 41 and 81, the Southwest Atlantic and the Southwest Pacific, were the result of greatly reduced catches by distant-water fishing nations targeting cephalopods in the Southwest Atlantic and various species in the Southwest Pacific. In area 27, the Northeast Atlantic, catches by European Union countries increased in 2015 by 4.4 percent but decreased in 2016 by 6.7 percent, even though the European Union has been implementing the landing obligation to eliminate discards since Januar y 2015, which was expected to increase recorded catches. However, according to a recent statement by the European Commission ( Vella, 2017), the economic performance of the European Union f leet has improved considerably and its profits are increasing. Catches of tuna and tuna-like species levelled off at around 7.5 million tonnes after a maximum ever in 2014. A few species – skipjack, yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tunas and seerfishes (Scomberomorus spp.) nei – make up about 75 percent of the catches of this group. Throughout the past 20 years, FAO has made efforts to improve the taxonomic breakdown of the “Sharks, rays, chimaeras” group. Currently, the FAO database includes 180 species items in this group, but catches of too many Elasmobranchii are still not reported at the species level, mostly because some major Asian fishing countries only report non- identified catches of sharks and rays or do not report any statistics at all for this group. Total catches of Elasmobranchii have been relatively steady since 2005, ranging between 0.7 and 0.8 million tonnes. Most notable in Figure 4 is the continuously rising trend in catches in tropical areas. In contrast with the situation in temperate waters, mainly fished by developed countries, in fishing areas that mostly lie in tropical regions catches of large » | 12 |