Coral Disease Working Group

Introduction

Disease is one of the most significant and growing threats to tropical coral reefs around the globe. In particular, a multi-year outbreak of stony coral tissue loss disease (SCTLD) has caused unprecedented damage to Atlantic-Caribbean coral reef ecosystems and poses a looming risk to as-yet unaffected reefs in the Indo-Pacific. First observed in South Florida in 2014, SCTLD is characterized by rapid spread, rapid tissue loss, and high mortality rates within certain species. While coral disease occurs naturally in reef ecosystems, with a normal background disease rate of 2-3% of corals on a reef, SCTLD may result in 66-95% prevalence, particularly in highly susceptible species. Some portions of Florida's Coral Reef have suffered a loss of more than 40% in coral cover since the disease was first detected. Coordinated, strategic action is needed to address the grave and mounting threat posed by the continued spread of SCTLD and other coral diseases.

In response to the growing threat posed by coral disease, the USCRTF Coral Disease Working Group provides support for local response, mitigation, and prevention efforts, and enhances coordination among activities occurring at the national level. Complementing the role of the Coral Disease and Health Consortium, which facilitates collaboration among the scientific community, the group supports coordination among federal agencies and jurisdictions. The newly formed Coral Disease Working Group has developed clear objectives, implements action-oriented initiatives, and builds upon existing SCTLD response partnerships to facilitate communication across agencies and jurisdictions, including prevention of the spread of SCTLD to Pacific coral reefs.

Because SCTLD is unprecedented in its impact on coral reef ecosystems, the focus of the group for the time being will be that particular disease. However, by setting up and formalizing this working group, we are providing a mechanism to enable USCRTF level action in response to future coral diseases as they arise.