Sunday, August 12, 2018

Karenia brevis will react to warmer waters.

Karenia is a dinoflagellate with a very bad reputation of causing respiratory distress and neurotoxic shellfish poisoning. The is the largest bloom in at least ten years in offshore waters of Florida.

July 30, 2018
By Mindy Weisberger

Scores of dead fish (click here) itter the shorelines of beaches in southwest Florida, and hundreds of dead and ailing sea turtles have washed up on shores there in recent weeks — all victims of a toxic red tide caused by the single-cell alga Karenia brevis.
Algal blooms occur seasonally in the Gulf of Mexico, when water conditions enable their populations to explode and spread. But this year's event includes especially high quantities of algae that produce a toxin, and the impact on marine wildlife is devastating, affecting sea birds as well as fish and turtles in unprecedented numbers, the Fort Myers News-Press reported.
The algae's toxins can also be dangerous to humans if inhaled, particularly for those people who have respiratory issues. Concentrations of algae in some coastal areas have been so high that the National Weather Service (NWS) issued beach hazard advisories over the weekend, warning about risks of respiratory irritation. Those warnings remain in effect as of today (July 30), according to the NWS....