Source link : https://earth-news.info/general/scientists-say-they-have-solved-the-mystery-of-what-killed-more-than-5-billion-sea-stars-yahoo-home/
Scientists have reportedly cracked the enigma behind the mass die-off of more than 5 billion sea stars that has bewildered marine biologists and environmentalists alike. The unprecedented decline of these keystone marine creatures, which began several years ago and spanned vast stretches of coastline, had sparked concerns about ecosystem instability and biodiversity loss. Now, new research sheds light on the cause of this devastating event, offering crucial insights that could help protect ocean life in the future.
Scientists Identify Cause Behind Massive Sea Star Die-Off
After extensive research, marine biologists have pinpointed the primary culprit behind the drastic decline of sea star populations along the Pacific coastline. The team discovered a highly contagious virus known as Sea Star-associated Densovirus (SSaDV) responsible for triggering a devastating syndrome that led to mass mortality. This pathogen causes what scientists call Sea Star Wasting Disease, characterized by rapid tissue decay, arm detachment, and eventual disintegration of the affected animals.
Key findings from the study highlight several aspects of the outbreak’s impact:
- Geographical spread: The disease rapidly expanded from localized regions to nearly the entire western coast of North America within months.
- Species affected: Over 20 sea star species, including the once-abundant sunflower and ochre stars, showed high susceptibility.
- Environmental factors: Elevated sea temperatures appear to…
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Author : earthnews
Publish date : 2025-08-04 16:17:00
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