Seafood mislabelling is caused by eating certain reef fishes whose flesh is contaminated with toxins. The CDC states the following about Ciguatera: Ciguatera fish poisoning (or ciguatera) is an illness caused by eating fish that contain toxins produced by a marine microalgae called "Gambierdiscus toxicus". People who have ciguatera may experience nausea, vomiting, and neurologic symptoms such as tingling fingers or toes. They also may find that cold things feel hot and hot things feel cold. Ciguatera has no cure. Symptoms usually go away in days or weeks but can last for years. Because the toxins are very heat-resistant, consumers cannot protect
Fish kill beaches around Texas and Florida. Humans can also become seriously ill from eating oysters and other shellfish contaminated with the red tide toxin. The term "red tide" is also commonly used to describe harmful algal blooms on the northern east coast of the United States, particularly in the Gulf of Maine. This type of bloom is caused by another species of dinoflagellate known as "Alexandrium fundyense". These blooms are natural phenomenon, but the exact cause or combination of factors that result in red tides outbreak not fully understood. Just as an algae bloom can lead to oxygen depletion, introduction of