Outdoor pond fish encounter cold weather There are two main problems in the growth of fish. First, cloudy and snowfall weather lacks light, so that the algae in the water below the ice surface can not produce photosynthetic dissolved oxygen, resulting in lack of oxygen in fish and shrimp. death. The second problem is to change the fish ponds in time to maintain the cleanliness of the water body, which is also quite troublesome.
In order to prevent and reduce the impact of extreme cold weather on aquaculture, farmers can take the following measures. 1. As soon as it is discovered that the ice seal should be used to fight ice oxygen in time to ensure the dissolved oxygen content in the pond water. 2. Deepen the pond water level to prevent frostbite of fish due to low water levels. 3. Do not use excessive nets to catch fish in the snow to reduce fish damage. 4. Increase the number of patrol ponds and observe the activities of farmed fish.