Scientists find cause of sea star epidemic

Scientists have resolved the mystery behind the death of billions of starfish along the Pacific coast.

Researchers uncover cause of sea star die-off

Scientists have identified the cause behind the mass die-off of over 5 billion sea stars along the Pacific coast of North America. This mystery has perplexed researchers since the epidemic began in 2013, leading to a sharp decline in numerous species, particularly the sunflower sea star, which lost around 90% of its population. The culprit is a harmful bacterium known as Vibrio pectenicida, as revealed in a recent study published in Nature Ecology and Evolution. The crisis not only threatens sea stars but also the ecosystems they support, since fewer sea stars allow sea urchin populations to explode, which in turn damages kelp forests.

The identification of Vibrio pectenicida as the cause of the sea star die-off sheds light on a crucial piece of ocean ecology. Sea stars play a vital role in maintaining the balance of their ecosystems by controlling sea urchin populations, which if left unchecked can devastate kelp forests. The findings could pave the way for innovative conservation strategies. By potentially relocating healthy sea stars or exploring treatments to enhance their immunity, scientists might not only save the sunflower sea stars but also restore entire ecosystems. This research highlights the interconnectedness of marine ecosystems and the urgent need for effective intervention in the face of environmental challenges.

Highlights

This breakthrough in marine research may open pathways to restore oceanic ecosystems.