The frightening phenomenon caused thousands of sudden death in America

Thousands of fish, sea turtles, seabirds, manatees and a shark have died because of the ever-lasting red tide.

The phenomenon of blooming algae has killed thousands of marine life in the state of Florida and is causing health problems for people, CNN reported.

Some residents in the state's six counties are reported to have respiratory irritation, the Florida Fish and Wildlife Conservation Commission said.

The phenomenon of blooming algae has killed thousands of marine life in the state of Florida.

The red tide this time started in October last year and has lasted for more than 9 months.

According to CNN, the phenomenon of toxic algae blooms, also called , usually occurs in late summer or early autumn in this area, lasting about 3-5 months. But the red tide this time started in October last year and has lasted for more than 9 months.

Red tide is the phenomenon of exploding the number of microalgae, turning seawater into red. These algae produce toxins that can damage or kill marine life.

Red tide can also release toxins into the air, sometimes causing respiratory problems, eye irritation or asthma with humans, the US National Oceanic and Atmospheric Administration (NOAA). said.

Thousands of fish, sea turtles, seabirds, manatees and a shark died of long red tide.

This phenomenon is obstructing sea exits and canals. At some beaches, people cannot walk because of marine life problems. The situation was so bad that the state governor called it an emergency.

Red tide is the phenomenon of exploding the number of microalgae, turning seawater into red.

Thousands of fish, sea turtles, seabirds, manatees and a shark died of long red tide.

Florida and Texas meet the red tide every year, but this lasting effect is unprecedented. It's been more than a decade since the Gulf of Mexico suffered such long-lasting algae blooms, Florida environmental officials said.

The coastal area affected by red tide reached about 160km, and officials did not know when it would end.