Paddlefish breeding and fishing

Set of spatula spatula: The spatula can be set in various aquaculture waters to increase spawning of spawning broodstock without occupying the water surface. Taiwan can set up a second-instar paddlefish 20 tails in grass carp or catfish ponds. After 10 months of incubation, the largest individual was 4.8 kg and the average tail weight was 4.1 kg. (2) Main spawning paddlefish: The main fish species are paddlefish, mixed grass carp, white pelicans, and gully in the pond. The larvae have a body length of 25 cm/tail, 200 to 250 tails per acre, and 150 fish/mixed fishes. mu. Mixed fish specifications must be less than paddlefish. Adult fish farming should not be polycultured in small areas or intensively cultivated high-yield ponds, but should be 5 to 15 mu. Because of the high yield and density of the intensive ponds, dissolved oxygen rises and falls, and round robins are very unfavorable to paddlefish. 2. Lakes and Reservoirs Relief Many researches have shown that paddlefish that are released in reservoirs grow faster because they are richer in phytoplankton than in rivers. If rivers in reservoir reservoirs have suitable spawning sites, paddlefish in reservoirs will multiply and multiply. Larger populations have become the main targets for fishing. Paddlefish are widely distributed in the Mississippi River Basin and its neighboring 22 states in the United States, and the main populations live in river channels. The Mississippi River basin in the United States has a continental temperate climate, which is similar to the Yangtze River basin in China and most of the north of the Yangtze River. It shows that the ecological conditions of most reservoirs in China are suitable for growth requirements of paddlefish. The lake and reservoir reserve paddlefish size should be greater than 40 cm, so that the survival rate is relatively high. The fish weight can reach 0.75 kg or more in the current year, more than 2 kg in the following year, and more than 3 kg at the end of the third year. Lakes and reservoirs should pay attention to fish farming: bar fish equipment is built to prevent stocking spoonfish from fleeing.