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1 воздействие рыболовства на окружающую среду
воздействие рыболовства на окружающую среду
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environmental impact of fishing
Fishing may have various negative effects on the environment: effluent and waste from fish farms may damage wild fish, seals, and shellfish. Fish farmers use tiny quantities of highly toxic chemicals to kill lice: one overdose could be devastating. So-called by-catches, or the incidental taking of non-commercial species in drift nets, trawling operations and long line fishing is responsible for the death of large marine animals and one factor in the threatened extinction of some species. Some fishing techniques, like the drift nets, yield not only tons of fish but kill millions of birds, whales and seals and catch millions of fish not intended. Small net holes often capture juvenile fish who never have a chance to reproduce. Some forms of equipment destroy natural habitats, for example bottom trawling may destroy natural reefs. Other destructive techniques are illegal dynamite and cyanide fishing. (Source: WPR)
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Русско-французский словарь нормативно-технической терминологии > воздействие рыболовства на окружающую среду
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2 инвазия посевов сельскохозяйственных культур
инвазия посевов сельскохозяйственных культур
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infestation of crops
Invasion of crop by parasites. Among vertebrate animals, many crop pests are mammals, especially in the order of rodents and birds. Among invertebrates, certain species of gastropods and a large number of roundworms from the class of nematodes harm crops. The most varied and numerous species of crop pests are arthropods-insects, arachnids and some species of millipedes and crustaceans. Diseases vary from viral, bacterial, and nutritional to fungal, environmental and non-specific. The FAO has estimated that annual worldwide losses done by plant pests and diseases amount to approximately 20-25% of the potential worldwide yield of food crops. (Source: RRDA / WPR)
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Русско-французский словарь нормативно-технической терминологии > инвазия посевов сельскохозяйственных культур
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