单词	red tide
释义	red tide noun : seawater discolored by the presence of large numbers of dinoflagellates (as of the genera Karenia, Gymnodinium, and Alexandrium) which typically produce a toxin poisonous especially to many forms of marine vertebrate life and to humans who consume contaminated shellfish compare saxitoxin Example Sentences Recent Examples on the Web The impact of this year’s red tide on clam shacks and consumers has been mixed. Alexander Thompson, BostonGlobe.com, 12 July 2022 There were also reports of fish kills believed to be linked to red tide in Pasco, Pinellas, and Hillsborough Counties. Garfield Hylton, orlandosentinel.com, 25 June 2021 Everglades City remains a fishing paradise, as it was not hit by the red tide that ravaged the state in 2018. Outside Online, 13 May 2019 For instance, if the GOP’s red tide gets to be too big, those islands may shrink too small to save the Democrats. NBC News, 1 May 2022 The blooms can block sunlight from underwater grasses and other vegetation, reduce oxygen in the water and cause fish kills similar to red tide as well as add toxins to the ecosystem that run up through the food chain. Richard Tribou, orlandosentinel.com, 14 June 2021 Many seafood markets began relying on Russian imports of sea urchin particularly after last year’s rare red tide, a harmful algae bloom that discolors the water, killed sea urchin and salmon around Hokkaido, Japan’s northernmost island. Washington Post, 16 Mar. 2022 Over the summer, excessive levels of nutrients in the water were linked to algal blooms and red tide along Florida's Gulf Coast. Li Cohen, CBS News, 7 Dec. 2021 The state spent millions in 2018 on beach cleanups as well as money into research on how to battle red tide. Richard Tribou, orlandosentinel.com, 14 July 2021 See More Word History First Known Use 1904, in the meaning defined above Medical Definition red tide noun : a large area of seawater discolored by the presence of large numbers of dinoflagellates (as of the genera Karenia, Gymnodinium, and Alexandrium) which typically produce toxins poisonous especially to many forms of vertebrate marine life and to humans who consume contaminated shellfish In simple terms, a red tide is a dinoflagellate population explosion, caused when certain species "bloom," or multiply many times faster than usual. Ellen Girardeau Red tides, the blooms of toxic Karenia brevis algae that appear almost every year in Florida, often lasting for months and turning the ocean red, may be dangerous to asthma sufferers—even if they don't go swimming. Nicholas Bakalar see brevetoxin, saxitoxin, shellfish poisoning
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