Red Tide

Red TideRed tide is an estuarine or marine algal bloom [a relatively rapid increase in the population of (usually) phytoplankton algae in an aquatic system] and is caused by a species of dinoflagellates, often present in sufficient numbers (thousands or millions of cells per milliliter) to turn the water red or brown. Coastal water pollution produced by humans and systematic increase in sea water temperature appear to be causal factors in red tides.

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