The development of my country's marine aquaculture industry is restricted

Introduction: Recently, academician Liu Ruiyu, Institute of Oceanography, Chinese Academy of Sciences, proposed that although China's mariculture production has grown at an unprecedented speed in recent years, there are still many problems in this field, which restrict the sustainable development of China's "blue agriculture" According to reports, in the new century, the market demand for aquatic products in China will increase significantly As the offshore resources have been over exploited, the fishing fishery will be difficult to maintain, and the sustained production increase will mainly depend on the development of "blue agriculture" - mariculture Academician Liu pointed out that the existing problems in China's mariculture industry include the following: first, there is a lack of comprehensive planning and effective management; many areas have too dense farms and seedlings, exceeding the environmental capacity; self pollution has worsened the environment and made it difficult to increase production Two is that seedling raising and cultivation technology is relatively backward, breeding ecological research is not in-depth, intensive high-yield technology is not formed, and production experience is lack of scientific and technological content, so it is difficult to popularize Third, the water environment is poor, and the ability to control and maintain good and healthy growth is not enough Fourth, the outbreak and prevalence of breeding diseases are becoming increasingly serious After the prevalence of shrimp disease, shellfish also suffered from a large area of disease and reduced production, which is a serious situation Diseases of fish and algae also increased unabated Due to the lack of research on the relationship between aquaculture ecology, disease, environment and nutrition, it is difficult to put forward universal and effective technical measures in a short period of time, which makes it difficult for production to continue to grow In addition, the introduction of domestic and foreign lack of management and control, some of them brought into the source of fatal diseases, resulting in serious losses The fifth is inbreeding, germplasm degradation, yield and quality reduction Six is the lack of good varieties (high yield and stress resistance) and high output value breeding objects (fish, shrimp, sea cucumber, abalone, etc.) The proportion of the total amount of the existing high-quality species is still small, especially for the main body of the fish culture, the quality and quantity of the improvement are very slow, so far there is not a good new variety for breeding production, to achieve a large increase in production The seventh is that the nutrition research and high-efficiency artificial bait configuration of cultured species can not meet the production needs Eighth, insufficient attention and support to resource management and offshore environment improvement, and lack of investment So far, only small-scale seedlings (prawn, jellyfish, sea cucumber, shellfish) have been released and proliferated, which is far away from Japan, northern Europe and other advanced countries.