The first batch of 200 mu of ecological crab seedling project of Panjin Guanghe Aquatic Products Co., Ltd. Rudong Branch produced and sold 7,500 kilograms of macrophthalmia, with an output value of 3 million yuan and an average yield of 37.5 kilograms per mu. It has created the highest unit yield of our company over the years, marking a qualitative leap in the technology and management of photosynthetic aquaculture in the production of ecological crab fry. All the staff of the company congratulate and pay tribute to the colleagues who are fighting on the production front of Rudong branch.

Recently, the company consultant Professor Lei Yanzhi (former vice president of Dalian Fisheries Institute, famous master tutor) led his disciples to live in the technology research and development center.

Editor-in-chief Li Xiaodong, chairman of Guanghe Aquatic Products Co., Ltd., and funded and published by Panjin Science and Technology Association. This is a book that introduces the latest technology of crab farming in northern my country.

Based on years of scientific and technological guidance experience, the nutrition of current river crab breeding is very critical, and it is an important factor in determining whether large-scale and high-quality river crabs can be grown in the end. At present, it is necessary to provide river crabs with sufficient nutrition and supplement sufficient minerals to ensure smooth shelling of river crabs and lay a solid foundation for breeding large-sized river crabs.

Crab pond water plants can not only increase dissolved oxygen, shade and cool down, provide bait, but also transform substances, purify water quality, and provide a suitable ecological environment for the growth of river crabs. Water plants are an indispensable factor to maintain the ecological balance of crab ponds. There are also specific requirements for aquatic plants. The main species of aquatic plants in Yixing Crab Pond are Elephant algae, Yellowgrass and Verticillium vulgaris. Based on the practice and exploration in recent years, the author introduces the problems and solutions encountered in the management of aquatic plants in crab ponds as follows, for your reference.

In order to speed up the transformation and upgrading of the whole region's ocean fishery, and attract powerful and high-level large enterprises at home and abroad to invest in ocean fishery construction, on May 2, 2012, accompanied by the introduction of Chen Gang, director of the Modern Fishery Investment Promotion Bureau of Dinghai District, Zhoushan City, Zhejiang Province, China Wang Hongbin, General Manager of Zhejiang Paradise Silicon Valley Equity Investment Management Group Co., Ltd., one of the top ten local venture capital institutions, and his party came to Qianlan Town, Dinghai District to inspect the construction of the National Oceanic Fishery Comprehensive Base, and actively cooperated with Zhoushan Huiqun Oceanic Fishery Development Co., Ltd. negotiate.