U.S. Fish and Wildlife: Between January 1 and April 2, that is, in March, a large number of manatees died suddenly in Florida, and more than 600 manatees have been found, which can be said to be very disturbing in the United States.
Compared with the "annual data" from 2016 to 2020, it is far more than that, because in this "annual data", the average annual number of manatees killed is 203, 3 months compared to the average data of 4 years. What's going on here? It is impossible not to worry.
So the United States issued a statement saying that the nearly "catastrophic" biological impact of Florida has appeared, once it continues, then the extinction of manatees is sooner or later, and now the Florida manatees in the United States are already "endangered", and now such a sudden large-scale death is definitely bad news.
<h1 class="pgc-h-arrow-right" data-track="12" why are there so many manatee deaths in the United States >? </h1>
Manatees are only 1 family, 1 genus and 3 species, which are very endemic biological populations, three of which include American manatees, Amazon manatees and African manatees, so the manatees mentioned here belong to the "American manatees".
We also call it the West Indian manatee, the Caribbean manatee, the North American manatee. This creature mainly inhabits the southeast coast of North America, the estuary and the main rivers of Florida in the United States, so in this regard, it is also a unique biological population in the United States.
In general, adult manatees can grow to 3 meters long and weigh 454 kilograms, so they belong to larger marine mammals, and manatees have a mild personality and do not like to be disturbed, so they are most obviously affected by human activities.
And this time there have been a large number of manatees in the United States, according to experts - mainly because of food, but not the only factor. Manatees love to eat seaweed (the only higher angiosperm on Earth that can live entirely in seawater) and need more reasons to answer.
So now it is only a preliminary suspicion that it is the cause of the smaller and fewer seagrasses that led to the large-scale death of "American manatees", but Stevens of Environmental Protection Florida said that there is actually another reason, that is, the problem of water pollution in the United States, which may bring crisis to marine life, because the "sewage leakage" incident has just occurred in Florida, so there are also controversial issues in the United States.
<h1 class="pgc-h-arrow-right" data-track="12" > sewage, nuclear leakage disputes, who is accurate? </h1>
After reading my previous article, everyone should know that China's Jilin No. 1 satellite also filmed the "sewage leakage" incident in Florida, usa, and many reports also pointed out that it is actually a "nuclear leak" incident, why there will be controversy, everyone will understand it when you look at it.
According to the Florida Environment Agency, from March 26 to April 9, about 237 million gallons of sewage either leaked or were intentionally drained from the reservoir. However, it is also said later that in addition to "pH, total phosphorus, total nitrogen and total ammonia nitrogen are not up to standard", it does not contain "radioactive materials that have reached harmful levels", so it is not a "nuclear leakage" problem.
However, after organized water monitoring, it was found that the nitrogen content of the sewage entering Tampa Bay was about 10 times that of the untreated sewage, which was not at all what was explained, so there was a controversy, the acidity of the sewage was still too high, and the content of polluting substances was too high.
And after the release of the report without threat, five days later, the water body was also monitored, and the nitrogen content was found to be 191.5 milligrams per liter, which was more than 18 times higher than the warning value, and in some areas it was even 20 times higher than the warning value, so it did have an impact on the ocean, of course, who is the most accurate, we do not know.
But it is true that there was a "catastrophic" sewage spill in Florida, USA, and initially the Center for Biological Diversity issued a statement that the phosphogypsum and the treated wastewater from the cesspool "contain high concentrations of radioactive material" and may also contain carcinogens and toxic heavy metals, so when the leak occurred in the local area, hundreds of families were forced to evacuate, which is considered a "nuclear leak" here.
So whether this is "sewage" or "nuclear leakage", it seems that there is no complete definition in the United States, but in any case, many American experts believe that a large number of manatee deaths in the United States in such a short period of time are related to the leakage in Florida, usa, and the discharge of sewage from Florida may be a long-term problem, and it is more obvious this year.
So in general, whether it is sewage or nuclear leakage, no matter what kind of substances it contains, we have seen the impact on the ecosystem, and we also expect Japan to consider this problem more, millions of tons of materials advertised as "nuclear wastewater" discharged into the ocean, we must consider whether the ecosystem can accept it, whether humans can accept this problem.
<h1 class="pgc-h-arrow-right" data-track="12" > summary</h1>
Regardless of the severity of this incident in the United States, in fact, we have to say that the earth's ecosystem is already in a "critical" state, and we have also seen that almost every year biodiversity report, biological population report is to show that the earth's ecosystem is facing a crisis, and more and more organisms are gradually disappearing or extinct, which is the impact of human activities. Many scientists also said that once human beings enter the "critical point" of the earth, the sixth mass extinction of the earth has appeared, then it will be difficult to save.
Although we are protecting the earth today, but a very large number of biological populations are still becoming very "fragile", the ecological chain is a whole, and changes in any one region may affect other regions, which is why scientists have been saying that we must protect the earth together, not that if a region changes, the earth will become better. Therefore, if we cannot protect living things as the most basic thing in the evolution of the human environment, then human beings can only think of other ways to survive.