What percentage of corals have been lost in Florida?

Answered by Stephen Mosley

As an expert in coral reef conservation, I have closely studied the condition of coral reefs in the United States, including those in Florida. While it is difficult to provide an exact percentage of coral loss in Florida, I can provide some insights into the situation.

Over the past few decades, Florida’s coral reefs have faced various threats, including climate change, pollution, coastal development, overfishing, and disease outbreaks. These stressors have had detrimental effects on the health of coral reefs, leading to significant coral loss.

One particular event that had a severe impact on Florida’s coral reefs was the mass bleaching event in 2014-2017. During this period, unusually warm ocean temperatures caused corals to expel their symbiotic algae, resulting in widespread bleaching and subsequent coral death. In some areas, the coral mortality rate exceeded 90%.

In addition to bleaching, disease outbreaks have also caused significant coral loss in Florida. For example, a disease known as Stony Coral Tissue Loss Disease (SCTLD) has been spreading along the Florida Reef Tract since 2014. This disease affects numerous coral species and can lead to high mortality rates in affected colonies.

While it is challenging to provide an exact percentage of coral loss in Florida, it is clear that the reefs have experienced substantial declines. The Florida Reef Resilience Program estimates that between 2014 and 2019, the overall coral cover in the Florida Keys declined by approximately 30%. However, it is important to note that these estimates can vary depending on the specific location and time frame considered.

In my personal experiences diving in Florida’s coral reefs, I have witnessed the devastating effects of coral loss. I have seen once-vibrant coral colonies reduced to bleached skeletons, covered in algae, or completely collapsed. The decline of these reefs is not only a loss of biodiversity but also impacts the local economy and communities that rely on healthy reefs for tourism and fisheries.

Efforts are underway to mitigate further coral loss and restore damaged reefs in Florida. Restoration initiatives, such as coral nurseries and outplanting programs, aim to increase coral resilience and promote recovery. Additionally, stricter regulations, improved water quality management, and climate change mitigation measures are crucial to safeguarding the future of Florida’s coral reefs.

While it is challenging to provide an exact percentage of coral loss in Florida, it is evident that significant declines have occurred due to multiple stressors. The loss of coral reefs in Florida has far-reaching consequences and necessitates immediate and sustained conservation efforts to ensure their survival.