What are the six important meteorological indicators that affect the catch?

1, temperature The growth, development and reproduction of fish are all affected by water temperature, and the body temperature of fish also changes with the change of water temperature. The suitable water temperature for freshwater fish is 12 ~ 20℃. When the water temperature drops below 5℃ or exceeds 30℃, it is beyond the range of fish survival, so it is difficult to catch fish. However, it is not absolute. There are many fish that can still eat well in high temperature season, such as silver carp, bighead carp, grass carp, pouting, snakehead and so on.

2. When the air pressure is high, there is more oxygen in the water, and the fish feel comfortable; When the air pressure is low, there is little oxygen in the water, which makes the fish very uncomfortable. Therefore, in heavy rain or sultry low-pressure weather, fish have no intention of eating, but float in the upper and middle layers of water or hide in the grass to rest. In spring and summer, when it is sunny after rain or in high-pressure weather such as crisp autumn, fish have large activity and strong feeding ability, which is beneficial to fishing.

3. The change of dissolved oxygen in dissolved oxygen water is directly affected by air temperature, water temperature, air pressure, light, wind force and wind direction. Generally speaking, rivers and other flowing water bodies are rich in dissolved oxygen. In still water bodies such as ponds and reservoirs, the deeper the water, the less dissolved oxygen. Dissolved oxygen is abundant in sunny days, which is abundant in running water mouth, water inlet, water outlet, tuyere, green grass edge, shallow water body and large area.

4, windy In addition to the cold winter, under normal circumstances, blowing northeast wind, east wind and southeast wind below level 3, whether it is day or night, is conducive to fishing. However, southerly winds or southwest winds are not conducive to fishing, but fishing can still be done in the morning or evening in summer and at noon in winter. The weather in the west wind and north wind is generally not conducive to fishing, and you can only gain something after the rain in summer. In addition, no matter what wind direction, as long as the wind reaches level 5 or above, it is not conducive to fishing.

In general, as long as it is sunny, except for noon in summer and morning and evening in winter, other times are more suitable for fishing. Cloudy or light rain weather, except winter morning and evening, other times are also suitable for fishing. Summer showers are also suitable for fishing. However, after heavy rain, muddy water containing a lot of sediment flows in, which is extremely unfavorable for fishing.

6. Moonlight The shape and brightness of the moon in different months have different effects on fishing activities. From the first quarter to the full moon, the brightness of moonlight gradually increases, and fish are active and feed actively, but most of them are concentrated in the first half of the night; In the second half of the night, due to the dim moonlight, fish activities decreased and became active again in the morning. From the full moon to the last quarter moon, the brightness of the moonlight gradually weakens, and the fish activity is still active, but it is mostly concentrated in the latter half of the night, and the activity decreases in the early morning.