Sea Star Wasting Syndrome warps their limbs and causes their bodies to deflate and then disintegrate entirely.
, scientists examined that outbreak in detail, focusing on the genes of a key species—ochre sea stars— that was impacted. Researchers wanted to work out why some sea stars died from the disease while others escaped unscathed. That way, they could determine whether the sea stars could adapt to the disease and uncover ways of helping protect them from future outbreaks.
Stock image of sea star suffering SSWS. A 2013 epidemic of the disease caused ochre sea star populations off the coast of Oregon to decline between 50 and 94 percent."We were looking for whether or not existing individuals have genes that make them more likely to avoid getting SSWS or if they did have SSWS, don't exhibit the symptoms that lead to death," lead author Andrea Burton of Oregon State University told.
Future epidemics are expected, Burton said, but much still remains a mystery:"We do not know at this time the origin of the Sea Star Wasting Syndrome. It is still debated as to whether SSWS is caused by a pathogen or not as no one has been able to isolate a causative agent yet."occurring amid climate change make SSWS worse.
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