Sargassum Seaweed has invaded the beach at the Grand Turk cruise center which is popular with cruise ship passengers.
Southwest Florida is reeling from a toxic algae bloom called red tide. Hundreds of tons of dead fish are washing up on beaches.
Sargassum, a type of seaweed, is creating problems as it washes up across the Caribbean.
Tests reveal concentrations of toxins in the shellfish the dogs ate was up to 27 times the safe limit.
Scientists first caught on to the strange event when they found thousands of purple sea urchins and other organisms dead in their laboratory tanks.
Since early February, the gulf, and beaches and islands surrounding it, have been in the throes of one of the worst blooms of red tide in recent years.
The river, which starts at the Saskatchewan Glacier in the Columbia Icefields and flows through to central Saskatchewan, is usually murky brown by the time it reaches Edmonton in summer. In recent weeks, however, the water has taken on the hues of Alberta's glacial lakes, thanks to dry, hot weather combined with maintenance at a major dam.
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