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What is the amazing breeding achievement of big-head carp, one of the four most famous fish in Asia?
Hypophthalmichthys nobilis, as a fish native to East Asia, is widely known as one of the four famous fish in Asia. Its breeding achievements have attracted widespread attention around the world. According to the latest data, global annual production exceeded three million tons in 2013, with China's contribution taking the leading role. This fish is known for its fast growth rate and ability to adapt to environmental conditions, making it an important species in the aquaculture industry.
Characteristics of big-headed carp
The adult big-headed carp has a large, scaleless head and a wide mouth. The eyes are located under the head, and the body is mottled silver-gray.
The typical length of bighead carp is 60 centimeters, reaching a maximum length of 146 centimeters, and a weight of up to 40 kilograms.
Ecological distribution and environmental adaptation
This fish lives primarily in large rivers and floodplain lakes. Their adaptability to water quality and environment allowed them to survive in a variety of environments when introduced to the United States and other countries. However, its invasive nature has become a major concern for the ecosystem.
Farming and economic value
As the 2000s progressed, bull carp farming continued to expand due to high demand and rapid growth. Since 1950, its annual production has increased from more than 10,000 tons to more than 3 million tons in 2013. This gives it the fifth-highest production share in freshwater fish farming.
The challenge of invasive species
Despite its success in breeding, bullhead carps have caused much controversy as an invasive species. The main purpose of introducing bighead carps in the United States is to improve water quality, but unfortunately, some fish escape and successfully establish the local ecology. This results in competition and ecological imbalance for native fish in wetlands and other waters.
The U.S. Congress banned the import of bull carp in 2010, and several states have begun imposing restrictions to prevent its further spread.
The position of big-head carp in food culture
In Singapore, the heads of big-headed carps are a particularly sought-after ingredient and are often steamed whole. In North America, although the meat of bighead carp is white, tender and high in protein, it is not as popular as other fishes. This is mainly because the association of the name makes many consumers stay away.
Sport fishing and recreational activities
In terms of sport fishing, although bighead carp are huge in size, they are relatively difficult to catch with a fishing rod due to their filter-feeding habits. Improve your success rate through some fishing techniques, such as using suspension methods or center-of-weight hooks.
With the gradual understanding of bighead carp, society has begun to re-evaluate the multiple values of this fish and conduct a sober examination of its potential in breeding and diet. Can the high yield and nutritional value of bighead carp change people's inherent prejudice against "invasive species"?
