Hairy crab, a beloved delicacy in China, is now Belgium's number one enemy. The Belgian Regional Environment Agency of Flande and the University of Antwerp are reportedly working on a program to trap hairy crabs in order to prevent them from causing damage to European waterways. This program has been launched for more than a year, and according to statistics, 3 million hairy crabs have been caught and processed. To trap hairy crabs, they installed a special metal channel in the river. This trap can catch 8,000 to 10,000 hairy crabs per day and will not accidentally injure other endangered fish. Once caught, the hairy crabs are anesthetized and disposed of. Hairy crabs are listed as one of the 100 most serious invasive alien species in the world. Their invasion poses a great threat to the local ecological environment, causing serious damage to native fish and aquatic plants. Therefore, the launch of this trapping scheme is undoubtedly a positive move.
However, some people think that these caught hairy crabs can be exported to China as a delicacy, which is not feasible. First of all, these hairy crabs are anesthetized and disposed of, and they are no longer edible. Secondly, hairy crabs are classified as invasive alien species, so they should not be exported as food. On top of that, the number of hairy crabs is huge, and if exported to China, it may pose a greater threat to the local ecological environment. Similar traps have been installed in the UK and are planned to be rolled out in France, Germany, Sweden and other countries. This shows that the invasion of hairy crabs has become a global problem that requires the joint efforts of all countries to solve it. In addition to this trapping scheme, there are other measures we can take to deal with the invasion of hairy crabs. For example, strengthening surveillance and quarantine to prevent its further spread; Strengthen public education to raise awareness and awareness of invasive alien species; Strengthen scientific research and study how to effectively control the population of hairy crabs.
In short, the invasion of hairy crabs has brought a huge threat to the local ecological environment, and we need to take active measures to solve it. The trapping scheme is one of them, but the idea of exporting to China as a delicacy is not advisable. We should work together to protect our environment so that everyone can enjoy the beauty of nature. Wild crayfish may not be suitable for consumption, although people have a soft spot for this delicious seafood. Professor Liao Wanjin pointed out that catching wild crayfish is not ideal because they live in areas with wide distribution and complex environments. This means that wild crayfish can grow in polluted waters and present various potential risks such as pathogens, chemical contaminants, heavy metals, and parasites. So, what should we do? Can't you enjoy delicious crayfish? The answer is no. In fact, farmed crayfish have become a reliable and safe option. The benefits of farmed crayfish are obvious.
First, they are grown in a controlled environment that avoids the various risks faced by wild crayfish. Secondly, the quality of artificially farmed crayfish is more reliable, because they have undergone scientific breeding management and monitoring to ensure that they are pollution-free and healthy. According to statistics, China's farmed crayfish has accounted for the vast majority of the market. According to the "China Aquaculture Industry Development Report", in 2019, China's crayfish breeding area reached 300,000 mu, with an output value of more than 50 billion yuan. This data proves the great potential and popularity of farmed crayfish in the market. So, why are farmed crayfish so popular? First of all, farmed crayfish have a high economic value. As a delicacy, crayfish has always been high in the market. Secondly, the growth cycle of artificially farmed crayfish is short and the return on investment is fast. This is a very attractive factor for farmers.
In addition, farmed crayfish also contribute to the conservation of wild resources. Overfishing of wild crayfish can lead to a decline in wild resources and even endangerment. The rise of farmed crayfish provides a viable alternative to the conservation of wild resources. Of course, there are some challenges to farming crayfish in captivity. For example, due to the high level of competition in the market, some farmers may use improper means such as hormones and antibiotics to increase yields. This poses a potential risk to the health of consumers. Therefore, it is necessary to strengthen supervision and quality control. In summary, farmed crayfish is a reliable and safe option to meet people's demand for crayfish. It not only helps to protect wild resources, but also promotes the development of related industries. Of course, in order to ensure the health of consumers, ** and relevant departments should strengthen supervision and quality control. So, the next time you want to taste the deliciousness of crayfish, you might as well choose farmed crayfish, which are delicious and safe!