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

When the temperature in the ocean becomes too hot, algae can undergo a process called bleaching. This occurs when the heat stress causes the algae to expel the symbiotic photosynthetic organisms living within them, resulting in a loss of their vibrant color. This can be detrimental to coral reefs and other marine ecosystems that rely on the algae for food and oxygen. Additionally, the bleaching event can disrupt the entire food chain in the ocean, as many marine organisms depend on the algae for survival. This can lead to a decline in biodiversity and overall ecosystem health.