Scientists Identify Bacterial Culprit Behind Pacific Sea Star Wasting Disease

Scientists have finally identified the cause behind the devastating sea star wasting disease that has affected over 20 species along the Pacific Coast since 2013. The disease, characterized by arms twisting and disintegration, has led to the death of billions of starfish, disrupting marine ecosystems and fostering an increase in sea urchins that threaten kelp forests. Researchers from Cornell and the University of Washington revealed that a bacterium related to Vibrio cholerae is responsible for the outbreak. Through extensive laboratory experiments involving exposure of healthy starfish to fluids from infected individuals, genetic analysis, and isolation of the bacteria, the team established a strong link between Vibrio pectenicida and the disease. This breakthrough provides critical insights for conservation strategies, including breeding resistant starfish and restoring affected habitats to prevent further ecological imbalance. However, some scientists urge caution, noting that the complex nature of marine diseases means other pathogens or environmental factors might also play roles. The findings mark a significant step forward in understanding sea star mortality, paving the ...