How to choose a fishing spot in summer when fishing in windy weather? Is the dissolved oxygen higher when the temperature is low?

Fishing position selection against the wind

Fishing proverbs: "Fish swim on top of the waves, to fish the mouth of the wind and waves." In general, in the windy weather fishing, fishing position selection should be upwind position. This is because in some natural waters, natural food is very limited, the fish can not leave the water to find food, can only rely on the day to supplement. After every gust of wind, there are always some insects and leafy plants being scraped into the water.

Wind and waves are good for dissolving oxygen in the water. There is enough oxygen and a lot of food, this is the time when the fish have a lot of food, to the bait is not to refuse. In addition, under the action of the wind, the lower part of the water body is generally opposite to the wind direction of the flowing water, just in line with the habits of the benthic fish against the current. As long as the water temperature is suitable, the wind speed is not very big, carp, carp and other fish will be from all directions to the windy shore to gather, swim to find food, fishing in this natural fish rate is quite high.

When the wind is blowing, it's better to fish in the bright water than in the grassy area

Summer fish never like calm weather, but some windy days and rainy days will be better for the fish. These days the water temperature drops, the dissolved oxygen in the water is higher, and the food on the shore is scraped into the water. This is when the fish will swim from the grass to the windy spots in search of food (since it's hard to get a bunch of food here, if you don't go, other fish will eat it all). Therefore, it's better to fish the bright water areas than the hydrilla areas when the wind is blowing.

Cold, highly dissolved oxygen sources are constantly sinking into the water body, as a larger proportion of cold water is replenished directly to the bottom of the water body, resulting in more dissolved oxygen on the bottom than on the surface. However, this condition corresponds to "the place where live water flows in, bringing oxygen and food", not the deep, cold water with high dissolved oxygen. If you go far away from the water inlet, the water body will return to the equilibrium by diffusion and the action of aquatic organisms. Any farther away would be more dissolved oxygen at the surface as well.

There are a lot of tiny oxygen bubbles (or gas bubbles) under the water, and there is an interface between the gas inside the bubbles and the water outside the bubbles, which is equivalent to the interface under the water, and the amount of dissolved oxygen under the water is greater than that on the surface of the water because of the greater rate of dissolution of oxygen in the water at a low temperature and high pressure. The reason why the air bubbles are so small is to increase the area of the interface, so that the oxygen can be rapidly integrated into the water. These types of conditions are not found in natural waters.

Excessive temperature

Oxygen solubility in water decreases with increasing temperature, for example, an atmospheric pressure water temperature increases from 10 to 35, the solubility of oxygen in the air in pure water rises from 11.27mg/liter to 6.93mg/liter, high temperatures cause a decrease in dissolved oxygen, in addition to high temperatures of fish due to feeding . Exercise increased oxygen consumption elevated, is also a key cause of insufficient dissolved oxygen.

Oxidation of inorganic matter

Oxidation of hydrogen sulfide, sodium nitrite, etc., present in the water body of aquaculture ponds and pond sludge, consuming a large amount of dissolved oxygen.

Organic matter degradation

The decomposition of a large amount of organic matter (e.g., the head of the pond together with feeding a large number of pigs, ducks, chickens, pigeons and other livestock feces) depletes a large amount of oxygen in the water body, resulting in hypoxia.