open access

https://hdl.handle.net/2115/44518

世界の水産の現状と将来

英語

2010-12-07

The period following end of the Second World War saw massive catch increases in the whole world, particularly in the 1960s. However, crashes due to overfishing began to be reflected in global catch trends in the 1970s, and intensified in the 1980s and 1990s. In response, the industrialized countries of the Northern Hemisphere, where overfishing-induced catch declines appeared first, moved their effort toward deeper waters, and toward the South, i.e. to the coasts off developing countries, and beyond into the Southern Hemisphere, all the way to Antarctica. Now, at the end of the 21st Century's fist decade, the global expansion of fisheries is completed, and global catch, which peaked in the late 1980s, continues to decline, while the collateral damage to marine ecosystems and biodiversity continues to increase, along with subsidy-driven fishing effort. Several factors act to prevent the public in developed countries from realizing the depth of the crisis fisheries are in, notably the increased imports by developed countries of seafood from developing countries, and the misleading perception that aquaculture can substitute for declining catches. The widespread failure to respond decisively to these clear trends bode ill for the next decades, when the effects of global warming (declines of fisheries catch potential in the tropics and widespread disruptions at high latitudes), now only an excuse for the results of mismanagement, will begin to seriously impact on fisheries and global seafood supply.

会議発表資料

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