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1 воздействие рыболовства на окружающую среду
воздействие рыболовства на окружающую среду
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
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)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > воздействие рыболовства на окружающую среду
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2 смертельные болезни рыб
смертельные болезни рыб
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
fish kill
Fish diseases observed in the past three decades and which have been attributed to pollution include: haemorrhages; tumours; fin rot; deformed fins; and missing scales and tails. In industrialized countries, increasing numbers of fish are deemed inedible. Many small kills are not noticed or are not reported, and large kills are often not included because of insufficient information to determine whether the kills were caused by pollution or by natural factors. Low dissolved oxygen levels resulting from excessive sewage is one of the leading causes. The second most common cause is pesticides. (Source: WPR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > смертельные болезни рыб
См. также в других словарях:
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
Fish — are aquatic vertebrate animals that are typically ectothermic (previously cold blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being … Wikipedia
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish farming — Intensive koi aquaculture facility in Israel Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility… … Wikipedia
large — 1) a grade of dried and salted cod (Newfoundland). Large fish are dry, sound, smooth, well salted and over 18 inches while extra large are from 21 to 24 inches long 2) a size of commercial fish, e.g. cod, salmon … Dictionary of ichthyology
fish biscuit — 1) a large, fish flavoured treat used for rewarding animals in zoos such as bears 2) a term for any reward that does not meet expectations. Based on the TV series Lost where one of the characters (Sawyer) spent most of an episode locked up and… … Dictionary of ichthyology
fish cutter — a person who prepares fish for eating by removing fins, internal organs and bones and cuts large fish into fillets and steaks … Dictionary of ichthyology
fish gaff — a long pole with a metal hook on the end, used to secure large fish caught on hook and line and haul them on board a vessel … Dictionary of ichthyology
fish-gaff — a long pole with a metal hook on the end, used to secure large fish caught on hook and line and haul them on board a vessel … Dictionary of ichthyology
fish steak — noun cross section slice of a large fish • Hypernyms: ↑steak • Hyponyms: ↑flitch … Useful english dictionary
Large-headed goby — Scientific classification Kingdom: Animalia Phylum … Wikipedia
