What happens to algae when the temperature of the ocean becomes too hot?

When the temperature of the ocean becomes too hot, algae may experience negative effects. High temperatures can lead to a process known as bleaching, where the algae expel the symbiotic algae living within their cells, causing them to lose their color and eventually die if the conditions persist. This can disrupt the ecosystem as algae are an important source of food and oxygen for many marine organisms. Additionally, the loss of algae can lead to a decline in biodiversity and overall health of the marine environment.