In July, 200212002, a sewage storage device built by an American enterprise leaked near the coast, which polluted a large area of seawater nearby, causing thousands of tons of fish to die one after another, and the whole coastline showed a white landscape. Since late September, a large number of fish carcasses have also appeared on Japanese beaches, and this phenomenon has continued until now, and the whole beach smells rotten.

At the beginning of 1 1, the climate of the East Islands in the United Kingdom has also undergone subversive changes, and the sea level has continued to rise. At the same time, there have been large-scale fish deaths in Huizhou, and the chief culprit of these phenomena is red tide.

First, the cause of the red tide has the most direct relationship with human behavior. When human beings discharge sewage and garbage into seawater, it will destroy the original ecological balance in the ocean, resulting in some trace elements in seawater exceeding the standard seriously, which will directly harm the health of benthic organisms. However, some harmful algae plants will grow wildly with the help of these nutrients, and they will cover the whole sea in a short time, that is, the red tide or fluorescent blue phenomenon we see, and the red tide will show whatever color the algae shows.

When the whole sea surface is covered with harmful algae, the creatures living in the sea water will die of lack of oxygen, and some marine species will even go extinct directly in this environment. Take Hokkaido as an example, even if the red tide can end in a short time, it is difficult to see sea urchins again in the next few years, which is also a huge loss for the local aquatic economy.

Second, it will do harm to human health, and these dead aquatic products are likely to flow into the food market through abnormal channels, and the price will be very low. However, when we buy aquatic products, we must carefully identify them, and don't be greedy for petty gains, because these aquatic products that died due to red tides will produce a large number of germs, which will not disappear with the death of fish. If humans eat them, they will enter the human body, resulting in poisoning, so we must buy them through formal channels.

Third, paying attention to the marine environment can prevent the occurrence of red tide. In fact, the phenomenon of red tide is that human pollution to the ocean is beyond its tolerance, which leads to the destruction of the balance of the marine system, and finally it eats itself back at us. In fact, this man-made disaster can still be controlled. The only way is to protect the marine environment and control marine pollution.