How to provide a good water quality environment for marine fish cage culture？

Do you know How to provide a good water quality environment for marine fish cage culture ？

1. Readjust the layout of aquaculture cages Determine the size of aquaculture cages
   according to production plan. Through the local government organization, scientific and technical personnel clarified the scientific rationale for the rational layout of breeding cages, and widely mobilized farmers to dismantle 70% of the existing cages in proportion. "Technical Specifications" standard, re-layout. 

   
   

2. Strengthen the daily protection of the environment in the cage area 
   (1) After the cages in each breeding area have been cultivated for two consecutive years, the flow blocking devices and cages should be uniformly installed and recuperate for 3 to 6 months. 
   (2) According to the shallowness and depth of the place where the cages are placed, after 4 to 5 years of cultivation, the cages can be moved in the reserved free sea area. And clean up the bottom of the original cage point to facilitate the restoration of the ecological environment of the bottom. 
   (3) Environmental sanitation in the cage area: First, domestic sewage, waste, residual bait, garbage, sick and dead fish, and oil pollution such as human excrement and urine on the "fishing rafts" should be collected ashore for harmless treatment. The second is that the cages should be washed after being disinfected in the color-striped cloth box, and the sewage from washing the cages should be collected and treated. The third is to have anti-oil pollution facilities on the periphery of "fishing rafts". 

    

3. Promote the ecological culture mode of fish, shellfish and algae culture. 
   

   On the premise of leaving enough passages between the cages and the surrounding space, the seawater fish cages, shellfish and algae culture areas are arranged at intervals. Shellfish can filter and feed the suspended bait particles and phytoplankton in the water body and grow well, and make the sea water clean; algae can absorb nitrogen and phosphorus emitted by fish and shellfish and grow well, and the oxygen generated by algal photosynthesis It can increase the dissolved oxygen in the water body, ensure the life activities of fish and shellfish, promote the oxidation of pollutants produced by fish and shellfish, and also produce high-quality shellfish and algae products. In this way, a mutually beneficial and complementary benign ecological community is formed in the cage area, which not only improves the breeding efficiency of the sea area, but also improves the ecological environment of the sea area.

   4. Use high-quality, palatable artificially compounded pellets and feed them in moderation

High-quality and palatable artificial compound pellet feed can improve feed utilization, reduce bait coefficient and reduce residual bait. High-quality floating           artificial compound feed should be used instead of fresh fish to feed, which can not only protect aquatic resources, but also reduce the pollution of residual bait to the cage culture area.