Red tide is slowly clearing from Texas waters, but dinophysis, another toxic algae bloom, has been spotted in some bays–another blow to the Texas oyster industry this season.
Dinophysis was found in rising concentrations in the waters of Port Aransas and in Surfside Marina near Freeport.
Unlike red tide, this algae does not kill fish or give people breathing problems, but it is toxic to oysters.
Dinophysis algae often show up in state waters every spring. It is short-lived, as the blooms last only a month or two and oysters quickly purge the toxins.
The oyster harvest has been slow to start this season because of red tide from Galveston Bay to South Padre Island. Red tide kills fish and makes oysters toxic.
The Texas Department of State Health Services has kept most state waters closed to oyster harvesting because of red tide.