How to choose fishing position when fishing in summer meets windy weather? Will the dissolved oxygen be high when the temperature is low?

Choose the position against the wind and catch the proverb: "Fish whirl around with bread, and ride the wind and waves." Under normal circumstances, when fishing in windy weather, the fishing position should choose headwind. This is because in some natural waters, natural food is very limited, and fish can't find food without water, so they can only rely on the sky to supplement it. After every gale, some insects and leafy plants are blown into the water.

Where there is wind, there are waves, which is beneficial to dissolved oxygen in water. There is plenty of oxygen and food. At this time, the fish are full of food, and the bait is popular. In addition, under the action of wind, the flowing water in the lower water body is generally opposite to the wind direction, which coincides with the habit of benthic fish going upstream. As long as the water temperature is suitable and the wind speed is not very high, crucian carp, carp and other fish will gather in the windward shore from all directions and swim for food. Naturally, the fish rate here is quite high.

When there is wind, it is best to fish in bright waters, not in aquatic plants. Fish in summer never like calm weather. On the contrary, it is best to fish in windy days and rainy days. These days, the water temperature will drop, and the dissolved oxygen in the water will be higher, scraping the food on the shore into the water. At this time, the fish will swim from the grass to the tuyere in search of food (because it is difficult to get a pile of food here, otherwise it will be eaten by other fish). Therefore, when there is wind, it is better to catch bright waters than to catch aquatic plants.

Water with low temperature and high dissolved oxygen continuously flows into the water body. Because of the large proportion of low-temperature water, it is directly replenished to the bottom of the water body, resulting in more dissolved oxygen at the bottom of the water body than at the water surface. However, in the choice of fishing spots, it is "the place where living water flows in, bringing oxygen and food", not the water depth and a lot of cold dissolved oxygen. Being far away from the water inlet, the water will regain its balance under the action of diffusion and aquatic organisms. A little further, the dissolved oxygen on the water surface will be greater.

Many tiny oxygen bubbles (or bubbles) form at the bottom of the water. The gas in these bubbles has the same interface as the water outside the bubbles, which is equivalent to adding an interface at the bottom of the water. At this time, due to the high dissolution rate of oxygen in low temperature and high pressure water, the dissolved oxygen at the bottom of the water will be greater than that at the water surface. The purpose of fine bubbles is to increase the interface area and promote the rapid integration of oxygen into water. Such conditions are not found in natural waters.

When the air temperature is too high, the solubility of oxygen in water decreases with the increase of temperature. For example, when the water temperature rises from 10 to 35 at atmospheric pressure, the solubility of oxygen in air rises from 1 1.27mg/ L, which will lead to the decrease of dissolved oxygen at high temperature. In addition, the increase of oxygen consumption of fish caused by food and exercise at high temperature is also the key to the lack of dissolved oxygen.

Inorganic substances oxidize hydrogen sulfide and sodium nitrite in the water and sludge of aquaculture ponds, consuming a lot of dissolved oxygen.

Organic matter degrades a large amount of organic matter (such as the feces of pigs, ducks, chickens, pigeons and other livestock raised together in the pond), which consumes a lot of oxygen in the water body and causes hypoxia.