Lead
On the seabed of the east coast of Australia, the number of giant sea urchins has skyrocketed, not only gnawing away the seaweed forests on the nearby seabed, but even destroying coral reefs, and the ecological environment of the seabed has fallen into a great crisis, and the number of this giant sea urchin has exceeded 20 million, posing a huge threat to the marine ecological environment.
However, Australians do not eat giant sea urchins, and how do giant sea urchins become so popular?
And how to effectively curb the number of giant sea urchins and reduce their damage to the seabed ecological environment?
1. The "giant sea urchin" is overflowing.
In 2013, in Queensland, on the east coast of Australia, a sea urchin called "giant sea urchin" was caught, the number of this giant sea urchin is very dense, and the size is also very "giant", very rare, the number of this sea urchin exceeds 20 million, and they are still breeding, after statistics, the number of this giant sea urchin is growing every year.
And this giant sea urchin is not only found in Queensland, but also on the east coast of Australia, and there are also very many of them, how did this giant sea urchin appear here?
And the number is very staggering, this sea urchin is overflowing, causing great damage to the seabed ecological environment on the east coast of Australia.
Marine biologists began to study this giant sea urchin, and there are many reasons for their surge, the main reason is the local sea urchin fishing boom, around 2010, the local sea urchin fishing business activities are very popular, the number of this giant sea urchin is also very large, so people for profit, people in large quantities of this sea urchin for sale.
The natural enemies of this sea urchin are mainly wolf eels, spiny pufferfish, etc., but due to commercial fishing, the number of this giant sea urchin has decreased sharply, resulting in their natural enemies not being able to meet their food intake, so the number of giant sea urchins has skyrocketed.
In addition, the global sea temperature is also gradually rising, and the reproductive ability of this giant sea urchin is very strong, affected by the sea temperature, their reproductive ability will also become stronger, so their number will be even larger.
2. The reason why Australians don't eat sea urchins.
Australians do not eat sea urchins, and there are many reasons for this, first of all, Australian chefs have not mastered the skills of cooking sea urchins, so they cannot make delicious dishes of sea urchins, and another reason is that the shell of sea urchins is very hard, so it is very difficult to handle, and Australian fishermen can also get injured during the fishing process because of the sharp shells of sea urchins.
Therefore, there are many reasons why Australians do not eat sea urchins, but the number of sea urchins has skyrocketed, and the damage to the seabed ecological environment cannot be ignored.
Sea urchin is a kind of omnivorous animal, mainly feed on the seaweed attached to the seabed, and their food is also very large, a sea urchin will eat 1/8 of their body weight of food a day, and the number of sea urchins is very large, so it will cause very great damage to the seaweed forest on the seabed, and the destructive power of this giant sea urchin is greater, as long as a group of giant sea urchins passes, the seaweed forest on the bottom of the sea can be gnawed away.
Seaweed is a very important part of the seabed ecosystem, not only can it absorb carbon dioxide and photosynthesize, but it is also a food source for marine life, so its importance is self-evident, and seaweed forests can also protect coral reefs on the seabed from harm.
But now the seaweed forest has been destroyed by giant sea urchins, and the giant sea urchins will also cause damage to the coral reefs on the seabed, so the ecological balance of the seabed has been greatly threatened.
3. Characteristics of giant sea urchins.
The shell of the giant sea urchin is very hard, and there are a lot of spikes, which can protect itself well, and the giant sea urchin has a set of hard teeth in its mouth, which is very sharp, so whether it is in the fishing process or in life, you must be very careful to avoid being hurt.
In addition, the number of giant sea urchins is very large, so it will occupy a lot of living space, which will lead to the loss of living space for other marine organisms, and will also lead to the extinction of other marine species, so the number of giant sea urchins is very large, which poses a great threat to the marine ecological environment.
However, the Australian government has also taken steps to control the giant sea urchin, on the one hand, by limiting the number of giant sea urchins that are commercially fished, and by introducing natural enemies of the giant sea urchins to control the growth of the giant sea urchins.
This also includes increasing the edible value of giant sea urchins to attract people and help them fish, but these methods have little effect because the number of giant sea urchins is very large, so it is difficult to control them effectively.
The Australian government also called on Australians to eat giant sea urchins, and the taste of giant sea urchins is very good, but Australians do not eat giant sea urchins, not because giant sea urchins taste bad, but because Australian chefs have not mastered the technology of cooking giant sea urchins, so they can't make delicious dishes.
In addition, commercial fishing has also caused the number of giant sea urchins to skyrocket, so it is still necessary to follow the habit of Australians not to eat giant sea urchins, but the number of giant sea urchins cannot be controlled.
epilogue
The research and application of natural enemies of marine organisms is of great significance to the maintenance of marine ecological balance, and the exploration of more biological control methods plays an important role in maintaining marine ecological balance.