A Coral Invasion Threatens Tokyo Bay Ecosystems
an invasive coral species. Acropora squarrosa, a coral native to western and southern Japan, has established itself near the Boso Peninsula, creating a vibrant coral reef ecosystem. While this may seem like a positive development, it poses a significant risk to the existing marine life.
The sudden expansion of Acropora squarrosa is attributed to rising ocean temperatures caused by global warming. This has led to the decline of abalone and turban shells, which feed on seaweed, creating space for the coral to thrive. The table-shaped corals block sunlight and inhibit seaweed growth, impacting fisheries that rely on these resources.
Experts believe that the Kuroshio current is carrying coral eggs and larvae from southern Japan to Tokyo Bay, further contributing to the invasion. While this phenomenon is causing concern in Tokyo Bay, it's also leading to coral bleaching and death in southern waters due to the rising temperatures.
The situation highlights the complex and interconnected nature of marine ecosystems. As global warming continues, we can expect to see further shifts in species distribution and abundance, with potentially devastating consequences for biodiversity and human livelihoods. It emphasizes the urgent need to address climate change and implement measures to mitigate its impact on our oceans.