How long can red tides last?



  1. 0 Votes

    Red Tide, a type of harmful algal bloom, is very unpredictable in when it will appear and disappear. Some blooms last less than a month, but others can remain for over a year: one in Florida lingered for eighteen months. Since they move with ocean currents, the algae that cause the reddish color may only appear near beaches for a few days or a week at a time.

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