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Book (series)Trends in oceanic captures and clustering of large marine ecosystems
Two studies based on the FAO capture database
2003Also available in:
No results found.Species items reported in the FAO capture fisheries production database have been classified as oceanic or living on the continental shelf. Catch trends of oceanic species, further subdivided into epipelagic and deep-water species, have been analysed over a 50-year period (1950-99) while statistics for shelf species have been re-assigned to large marine ecosystems (LMEs) for a shorter period (1990-99) and used to investigate catch patterns among the various LMEs. Oceanic fisheries constitut e, both in terms of number of species items and in quantities of recent catches, about 10% of global marine catches. Catches of epipelagic species (mostly tunas) and of deep-water species (mostly Gadiformes) have been continuously increasing and reached 8.6 million tons in 1999. Oceanic catches by distant water fleets (DWFs), mostly targeting tunas, have been decreasing in recent years although their share of total DWF catches has increased due to the concurrent drop of non-oceanic DWF catches. Trends of oceanic catches and the contribution of DWFs are examined for all FAO marine fishing areas which show different patterns, mainly depending upon whether they are temperate or tropical areas. Eleven clusters of LMEs have been identified on the basis of similarities in their catch composition classified into eleven species groupings. For each cluster, the distinguishing catch pattern and recent trends by species groupings in each LME are discussed, and considered in relation to infor mation on primary productivity and the abiotic characteristics of the LME. -
Book (series)Depleted marine resources: an approach to quantification based on the FAO capture database. 2004
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No results found.The 2002 United Nations World Summit on Sustainable Development called for species whose catches had been drastically depleted to be restored to health within 2015. An approach is proposed here to a preliminary classification, based solely on information included in the FAO capture database. Three criteria were used to filter catch data: the trend in recent years, the long-term trend, and the extent of decline in catches over the long term. These were applied sequentially to the data series for species items by fishing area recorded in the FAO capture database. About ten percent of the species items examined matched the selecting criteria. This is the same proportion of stocks classified as “depleted” by FAO based on assessment data although there are differences in the species identified. Reasons for these discrepancies are discussed. The species groups with the highest percentages of species matching the three criteria were Gadiformes, molluscs (excluding cephalopods) and miscellan eous coastal and demersal fishes. Pelagic fishes (including Clupeoids) and crustaceans showed low percentages of depleted resources. Species considered depleted by this procedure are listed by FAO fishing area. -
Book (series)World markets and industry of selected commercially-exploited aquatic species with an international conservation profile 2004
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No results found.Over time, the international community has been launching several initiatives aimed at improving the conservation status of commercially-exploited aquatic species. The four separated studies of this report target four species or group of species with an international conservation profile and traditionally under-represented in market and industry literature. These species are sturgeons (Acipenseriformes), Caribbean queen conch (Strombus gigas), sharks (Chondrichtyes) and Patagonian toothfish (Dis sostichus eleginoides). The sturgeon and caviar industry is a commercial one, with traditionally high capture and export patterns. The queen conch fishery is an important provider of employment and income among fishing communities in the Western Central Atlantic area. The shark fishery is a relatively large and lucrative one. Sharks are mainly taken as bycatch of other commercial fisheries such as tuna and billfishes. The Patagonian toothfish is exploited by a large, commercial industry which is concentrated in the southernmost areas of the Atlantic and the Pacific and in Antarctic waters.
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