The escalating water temperatures in the seas near Japan, particularly off the Izu Peninsula of Shizuoka Prefecture, have been attributed to the bleaching of table coral, showcasing the severe consequences of this environmental change. The Japan Meteorological Agency reported that the years 2022 and 2023 saw record highs in ocean surface temperatures that surpassed historical averages, signaling a concerning trend in climate impacts on the region's marine biodiversity and industries.
As a result of the persistent increase in water temperatures, the marine ecosystem along Japan's coastline is facing significant disruptions. The agency's data highlights that the surface sea temperatures in various periods, including June-August and September-November, were notably higher compared to the standard, further emphasizing the abnormality of the situation. The warming trend has not only affected marine life but has also interfered with the traditional practices of fisheries and aquaculture, as evident from the fluctuations in fish catches and growth of seaweed in response to the changing environment.