Pools of toxic algal bloom which sometimes occur when there is an upwelling of nutrient rich phytoplankton, turn the water an unusual reddish brown colour. These red tides cause depletion of oxygen in the water which is harmful to filter feeders and crustaceans. Tons of of rock lobsters and other shellfish become casualties and the beaches fester with the die off of many of these species.
WPC: Unusual
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