"Red tides" is a global problem in many sea basins, but it manifested itself especially dramatically near the Kamchatka Peninsula and the Japanese archipelago.
During the blooming of a large number of algae, the water changed color to bright red, after which hundreds of tons of sea fish were thrown onto the shore by the tide. This anomalous phenomenon occurred in 2020 in Avacha Bay near Kamchatka.
Some types of algae at a certain time produce substances, metabolites, which can be so dangerous that they cause fatal consequences. They can produce a full range of heavy poisons and all kinds of poisoning.
These algae created this planet, which is why they have such a powerful potential - they can kill humans, mammals, and marine life, directly and indirectly.
All over the world, special commissions are working to study this phenomenon.
If you look at the publications of the world press on the topic of "red tides and aftermath", you will see that these are hundreds of thousands of tons of dumped marine life on the coast around the world - South America, North America, Europe, Africa, Asia, China. Everywhere this phenomenon is accompanied by colossal consequences for ecosystems. Toxins can accumulate in seafood and then kill animals and humans.
It is important to understand that harmful algal blooms are one big planetary phenomenon.