What is the relationship between temperature and fishing?

1． Temperature and Fishing Fishing proverb: "Fishing on the beach in spring, fishing on the pond in summer, fishing on the shade in autumn, and fishing on the sun in winter." refers to the temperature conditions suitable for fishing in each season. "Spring fishing beach" means that on sunny days in spring, especially at noon, the water temperature in the shallow areas of the water is moderate, and it is easy to catch fish in this place. For example, in the Jianghuai River Basin, people often say: "The fish start to wake up." That is to say, in March, which is the end of the first month of the lunar calendar, the fish start to eat. The temperature in mid-spring is around 20°C, which is when fish have strong appetites and strong physiological functions. Fish want to lay eggs and breed young, and they are often "hungry and not selective about food." Therefore, this is the best season for fishing in the Jianghuai River Basin; "summer fishing pool" refers to the hot weather in summer, especially when there is no wind, no waves in the water, insufficient oxygen in the water, lack of oxygen for the fish, and reduced natural activity. At this time, they mostly inhabit deep water areas and shady waters and do not move, because the water depth is relatively cooler and fishing in such waters is more fruitful; "Autumn fishing in the shade" refers to the cloudy days in autumn when the temperature is the most moderate and suitable for fishing. Fishing: "Fishing for the sun in winter" means that after the temperature drops below 0°C in winter, fish inhabit the bottom of deep water areas or burrow into the mud to prepare for the winter and seldom swim. Only when the weather is fine and the temperature rises to a high level, fish will go to shallow water areas with relatively high water temperatures to "bask in the sun" for food, creating an opportunity for fishing.

On the other hand, in natural waters, due to the depth and wide area of ??the water, the distribution of water temperature is uneven, changing and stratified. Fishermen have realized the environmental background of "fish are also layered", and not only mastered the method of "fishing crucian carp from the bottom", but also created the methods of "fishing crucian carp from the bottom", "fishing crucian carp in half water" and "fishing crucian carp from the bottom". Tricks.

2. The relationship between air temperature and water temperature: How can fishermen know what the water temperature is? Generally speaking, if you know the air temperature, you also know the water temperature. The two are interconnected and influence each other. As the air temperature increases, the water temperature also increases; as the air temperature decreases, the water temperature also decreases. On a daily basis, at 6 o'clock in the morning, if the air temperature is 10°C, the surface water temperature will be about 12-15°C; at 12 noon, if the air temperature is 20°C, the surface water temperature will be about 15-18°C; at 2 p.m., if the air temperature is 24°C, the surface water temperature will be about 15-18°C About 18-22℃; at 6 p.m., when the temperature is 16℃, the surface water temperature is about 18-20℃; at midnight, when the temperature drops to 8℃, the surface water temperature is about 12-18℃. In short, the rise and fall of water temperature slightly lags behind the changes in air temperature.

Because water transfers heat and cold slower than air, there is a temperature difference between the water surface and the bottom of the water. The deeper the water, the greater the temperature difference. In summer, it is best to fish in waters with a small temperature difference between upper and lower temperatures. If the surface water is 20°C and the bottom water is 10°C, all fish will float up, and you cannot catch fish on the bottom, so you have to float or suspend fishing; if the surface water is 18°C, the bottom water is 35°C, and there is lack of oxygen at the bottom, the fish will float. Even if you don’t eat, you won’t be able to catch fish on the bottom, and it will be difficult to catch them by floating fishing. In winter, contrary to summer, it is best to fish in waters with large differences in water temperature. If the upper water freezes (0℃) and the bottom water is only 2-4℃, fish will not eat and flee to deep and warm water. You cannot catch fish in such bottom water; if the surface water freezes (0℃) ℃), and the bottom water is 10 to 15 ℃, then crucian carp, carp, bream, grass carp, herring, catfish, etc. all eat bait and can be caught; if you encounter a fish nest again, the hook rate will not be worse than in spring and autumn. . This is one of the important reasons why many northern fishermen like ice fishing and can achieve good fishing results.

3. The relationship between climate and fishing (1) Fishing on sunny days When the air temperature and water temperature are 10 to 25°C, fish have a strong appetite and grow quickly. There are continuous sunny days in summer and autumn, and the air and water temperatures are above 25°C, or even over 30°C. Under the scorching sun, the water is deprived of oxygen, and fish may float or avoid eating in deep water below 25°C. On a sunny day in winter, there is no wind or winds of level 1 or 2, and when the air temperature and water temperature are below 10°C and above 4°C, crucian carp, carp, and even bream and grass carp are still greedy; if the wind is level 3 or 4, the rate of fish eating hooks is greatly reduced. If the temperature is below 0°C, the bottom water temperature is around 10°C, and there is no wind or first or second level wind, ice fishing is very good at noon and 4:30 pm. For example, it is sunny, the wind is greater than Level 4, and the temperature is below 0°C. Although the bottom temperature under the ice is around 10°C, the hook-eating rate of fish is poor. In summer and autumn, if the southwest wind blows and the sky is sunny, the weather will be unbearably hot and it will be difficult to catch fish during the day.

(2) Fishing in rainy days is more complicated than fishing in sunny days. In spring, summer, and autumn, the temperature on rainy days is lower than that on sunny days, and the temperature decreases from hot to cool. When it rains, the air is fresh and the amount of dissolved oxygen in the water increases, so the fish are particularly active and their appetite increases. Fishermen often have this experience: in some pond mouths, fish are rarely caught, especially pond mouths that have not dried up for many years. If you come here to fish on a rainy day, you will often get unexpected harvests. The rain process can generally be divided into three categories: intermittent rain, continuous rain and showery rain; according to the amount of rainfall, it can be divided into five categories: light rain, moderate rain, heavy rain, heavy rain and thunderstorm. In some areas, plum rain and rainy season must be added. Two special situations. As far as the rain process is concerned, the rate of fish eating hooks is high during the intermittent rain periods. Before a shower, due to low air pressure, fish float on their heads and refuse to eat, so fishing is not allowed; after a shower, a large amount of new water enters the water with oxygen and food, making the fish active and increasing their appetite, making it a good time for fishing. When it rains continuously, the hook-eating rate of fish is low. After a few hours, the new water in the water increases, making the fish active, and they all approach the water edge to look for food. At this time, fishing in the rain is very effective; when there are showers Afterwards, the fishing was pretty good too.

In terms of rainfall, light rain refers to less than 2.5 mm of rainfall in 1 hour, or less than 10 mm of rainfall in 24 hours. In the later period of light rain, the appetite of fish increases, and some big fish also compete for food near the water. At this time, fishing in raincoats is effective. Moderate rain means that the rainfall in 1 hour is 2.5 to 8 mm, or the rainfall in 24 hours is 10.1 to 25 mm. The fishing effect is good at this time; if it clears up after the rain, the fishing effect is better. Heavy rain means that the rainfall in one hour is between 8.1 and 16 millimeters, and the rainfall in 24 hours is between 25.1 and 50 millimeters. Except for wild fish such as catfish and yellow catfish, most fish are unwilling to eat and anglers cannot see them. When clearing the buoy, it is difficult to grasp the timing of lifting the pole, and it rains heavily and you wear a lot of rain gear, which makes it inflexible, so it is not suitable for fishing. However, after rain, if the water color is not too turbid and the water flow is not too fast, you can fish. Heavy rain means that the rainfall exceeds 10 millimeters in one hour and more than 50 millimeters in 24 hours. Generally, fishing is not allowed in rain. Thunderstorms are also called thundershowers. At this time, you are prone to lightning strikes and fishing is prohibited. However, after the thunderstorm, the weather is clear and the air pressure is high, the dissolved oxygen in the water is rich, and the fish have a strong appetite, so it is a good time for fishing. The rainy season refers to a period of the year when rainfall is relatively concentrated in low-latitude tropical areas. During this period, the water temperature is suitable for the growth of fish. When the rain stops or the rain is light, it is a good time for fishing.

4. The relationship between dissolved oxygen and fishing. When the weather is sultry or the air pressure is low in summer, fish in some small water bodies will put their heads above the water to breathe. Fish experts call it "floating head". If When the situation continues to worsen, large-scale fish kills will occur, which is called "flooding ponds." The main reason why these situations occur is that the amount of dissolved oxygen in the water body is insufficient. The fish must passively breathe the dissolved oxygen in the air to maintain life. At this time, the fish has no desire to eat. This is called "the fish floats on its head and does not bite the hook." . The first victims are silver carp and bighead carp, which have the worst ability to tolerate hypoxia. As long as the weather is slightly muggy, they don't like to eat. Carp and crucian carp will also float on the water at this time. They are more resistant to hypoxia than silver carp and bighead carp. However, as long as the weather is hot and muggy, they will not bite the hook and eat even if they do not float on the water immediately. Cat catfish and snakehead fish are more resistant to hypoxia. When other fish do not bite the hook, they are the only ones who still bite the hook and eat.

If fishermen encounter such weather or see fish floating on their heads, no matter how good the fish food is, they will not appreciate it. What to do? The first is to close the pole and stop fishing; the second is to wait patiently for the sultry heat to subside before fishing again.

However, the amount of dissolved oxygen in waters is not uniform. The natural conditions of local waters are different, and the amount of dissolved oxygen also varies. For example: it is better to fish around the flowing water near the water inlet of the pond; fishing next to a pile of decaying plants may not be as effective as fishing next to lush aquatic plants in the pond; in windless weather with sultry weather and low air pressure, fishing is better. It is not as good as windy weather. Although the water surface fluctuates, the fishing effect is still better; the weather is suitable for fishing at the beginning of a long rain, after a thunderstorm and after a strong wind.

Judge the content of dissolved oxygen. To judge the level of dissolved oxygen in water, you need to "look twice": first, look at the condition of the fish. As mentioned earlier, fish will float when there is lack of oxygen in the water. Such waters are not suitable for fishing. If there are no fish floating on the head, but there are fish, especially crucian carp, suspended in half water or under grass, it also indicates that the water contains insufficient oxygen and should be moved decisively. Different species and sizes of fish have different tolerances to hypoxia. Crucian carp has the strongest endurance. It can persist for a long time even when dissolved oxygen is extremely scarce. The oxygen tolerance of other fish species is carp, herring, and grass carp, with the bream having the worst oxygen tolerance. The oxygen content in the water drops slightly, so it escapes the fastest. No matter what kind of fish, the bigger the fish, the greater the oxygen tolerance and the latest to float. However, when the hypoxia reaches a certain limit - less than 1 mg/L, the bigger the fish is, the faster it will die. Second, look at the water conditions. The larger the water surface is in contact with the air, the more dissolved oxygen will be dissolved. If the wind blows on the water surface and the waves are continuous, not only the contact surface will be increased, but also the waves will turn over. When the air is stirred into the water, the dissolved oxygen will increase exponentially. If the water surface is covered by aquatic plants over a large area and the contact area between the water and the air is small, the dissolved oxygen content in this water area will be very small. The dissolution of oxygen in water is also related to the water temperature. The higher the water temperature, the more difficult it is to dissolve. In stuffy weather when the air pressure is very low and there is no or very little wind, the sun shines directly on the water surface, and the heat is not easily dissipated. The temperature of the water surface rises quickly, which not only causes evaporation and causes the oxygen molecules in the upper waters to escape, but also heats the humus deposited on the bottom of the water. It decomposes rapidly. During the decomposition process, on the one hand, it consumes the dissolved oxygen in the middle and lower water bodies, on the other hand, it produces toxic gases such as biogas, and a series of bubbles appear on the water surface.

In terms of time, the dissolved oxygen content in the water in the morning and evening is higher than that at noon. However, in the fish pond, the dissolved oxygen content in the water in the morning is lower than that at noon, and is the highest around 3 p.m. As far as the water surface is concerned, the content in the open water surface is higher than that under aquatic plants. The content of wind and wave water is higher than that of calm water. In terms of depth, shallow water has a higher content than deep water. Of course, this refers to general conditions. Special weather or special circumstances are another matter.

5. The relationship between water transparency, water color and fishing “If the water is extremely clear, there will be no fish.” Generally, the transparency of pond water is ideal at 30 to 35 centimeters, which is suitable for fishing. Waters that are yellowish brown or oily green and have low turbidity are waters where fish like to live and feed.

Water transparency is affected by many factors. A large amount of plankton and low transparency is a sign of fertile water; conversely, a small amount of plankton and high transparency is a reflection of thin water. In addition to being affected by the amount of plankton, water transparency is also affected by sediment, weather, and the fish themselves.

For example, if the wind and waves are strong and the water is mixed, the transparency will be low; on a cloudy day, the light will be poor and the transparency will be low. Carp like to search for food in the mud at the bottom of the pond, so it can also make the water turbid and reduce the transparency of the water.

If the water is light yellow and has a transparency of 30 to 40 centimeters, the fish in this kind of water must have a strong appetite, especially animal bait. If the water is light green and has a transparency of 20 to 30 centimeters, the fish have a strong appetite; if there are many fish, it is easy to catch fish whether using plant-based bait or animal-based bait. If the water is yellow-green, the transparency is about 20 centimeters, there are many fish and they have strong appetites, all kinds of bait can be used, which is the best water quality for fishing. If the water is dark green with a transparency of about 10 centimeters, it means that the water is fertile and suitable for the growth of silver carp, bighead carp, and African crucian carp. When the weather is sunny and the temperature is suitable, fish in this water color have a high hook-eating rate, but when it is cloudy and the air pressure is low, Or when the weather changes or the temperature difference is too large, there will be a lack of oxygen and the fish will float and stop eating. If the water is light brown and has a transparency of about 20 centimeters, the fish will have a strong appetite and the effects of bottom fishing, suspended fishing and floating fishing will be good. The water is dark brown, thick, with a transparency of less than 10 centimeters, and the water quality is fertile. When it encounters rain, low air pressure, or long-term sunlight exposure, fish will often float and refuse to eat due to lack of oxygen, making it difficult to catch.

The color of water is determined by the color of plankton in the water. Brown water indicates that the water is mostly diatoms, green water is dominated by green algae and cryptophytes, and dark green water is dominated by Volvox and Euglena. Industrially polluted water has colors such as red, brown, and milky white, and the components in the water are complex. Plankton such as diatoms, cryptophytes, and chrysophytes, as well as rotifers, cladocerans, and copepods are easily digested by fish. If the content of these plankton is high, the fish will grow quickly. On the contrary, the water color is light and there are few plankton in the water, so the fish have no food and their natural growth is slow. When fishing on the river, you must first pay attention to the color of the water.

The first purpose of observing water color is to judge the condition of fish, and the other purpose of observing water color is to choose suitable fishing waters. If the water color is too shallow, it is easy for fish to see the movement of poles on the water surface and they will not dare to swim in the fishing area to look for food; if the water color is too dark, it is difficult for fish to find bait. Therefore, the water color suitable for fishing should be clear with turbidity, which can blur the sight of fish and make it difficult to detect activities on the shore, without affecting the fish's ability to find bait. Generally, if aquatic plants, stones and other objects below 30 cm are faintly visible, it means the water color is suitable. In addition, the water color must be selected according to different seasons. “Fishing for muddy water in spring and clear fishing in winter” refers to different seasons. In spring and early summer, fish are active and like to swim, with strong mobility and keen response. If the water is not turbid, the activities on the water surface and on the shore will easily scare the fish away; in winter, the fish have low mobility and slow response, and only the water is clear and can be sprinkled with water. Only by adding some bait to increase attraction can fish find the bait.

6. The relationship between wind and fishing Wind and fishing are also closely related. Fishermen can often see that if there is wind on the water surface and there are ripples in the water, the fish will be very active, and the fishing effect will be good at this time. As the saying goes: "The wind moves the water, and the water moves the fish." The wind will cause waves on the water surface, expand the contact surface between water and air, and effectively increase the dissolved oxygen in the water; the wind will also blow organisms on land and in the air into the water. , so that fish can get food.

Wind includes two major elements: wind direction and wind force. Wind direction refers to the direction of the wind, and fishermen are accustomed to using eight directions to express it, namely east wind, southeast wind, south wind, southwest wind, west wind, northwest wind, north wind and northeast wind.

When the east wind blows, it will rain. At this time, the humidity of the air increases, the fish are inactive, lying motionless at the bottom of the water, and their appetite is naturally bad. Experienced anglers often say: "When the east wind blows, you have to catch the fish." If there is only an east wind but no rain, or if the east wind starts and the weather clears after the rain, fishing will also be fruitful. The westerly storm is fierce and the air is dry. The fish are also restless and often float to the surface of the water. When the westerly wind blows, most fishermen will fail. South wind and north wind are both suitable weather for fishing. In summer, the south wind blows, lowering the temperature. The weather is cool, the water is rippling with blue waves, the oxygen is sufficient, and the fish are active. Especially winds of level 3 to 4 are most suitable for fishing. There are more northerly winds in autumn and winter. Fish in some fat ponds like weather with northerly winds best, and the fish are also more active. Especially in ponds with fatter water that have not dried up for many years, if there is a strong north wind, fishing will bring unexpected surprises. The fish at the entrance of these ponds rarely swim near the shore and often live in the deep water area in the center of the pond. Due to the abnormal climate, they become particularly active and swim to shallow water areas.

When the southeast wind, northeast wind, and northwest wind blow, the hook-eating rate of fish is higher in all seasons; only when the southwest wind blows, the hook-eating rate of fish is higher in spring, summer, and autumn. The results are all poor, and even no hooks are eaten. However, when the southwest wind blows in the severe cold season in winter and the weather is warm, the hook-eating rate of fish is actually high. Of course, when the southwest wind blows in winter, the fish hooking rate is also related to the weather, the temperature, and the depth of the water level.

Wind force is the strength of the wind, which is often expressed as wind level. Level 0 wind is suitable for sea fishing, and fishing (including winter fishing) on ??large inland water surfaces such as rivers, lakes and reservoirs is also good. However, in the sunny weather in late spring, early summer and early autumn, the weather with level 0 winds is sultry and hot, and the water surface (especially the small water surface) is prone to lack of oxygen and sultry heat. Fish float on their heads and refuse to eat, and the hook eating rate is poor. It is not suitable for fishing especially around noon. Level 1 wind is suitable for sea fishing and fishing on large inland water surfaces, especially in the spring and autumn when the rate of fish eating hooks is high. If the southwest wind does not blow in summer, fishing can also be done on small inland water surfaces. Level 2 wind is a good time for fishing. Regardless of sea fishing or land freshwater fishing, except for special circumstances, the hook rate of fish is generally high. Category 3 winds are a good time for fishing whether at sea or on land.

For boat fishing at sea, you can choose to hook in the leeward position near the shore. Fishing in the windward position on the seashore has a higher hook-taking rate; if there is no water pollution, fish disease, ice on the water surface in all inland water surfaces (except streams), and the bottom of the fish pond is affected by weather and water temperature, Uniform heat will ferment food residues and fish feces, causing special conditions such as lack of oxygen in the water. The fish will be active and have a strong appetite. Fishing by boat on the sea is dangerous in Level 4 winds and should be stopped. Fishing on the beach should be done in leeward or sheltered areas. It is difficult to fish with a hand pole at the wind tail of large water surfaces on land, but the hook rate of fish is still high in leeward and crosswind areas. Fishing is also good on the small surface of the pond and in crosswind ditches. Boat fishing at sea should be stopped in Level 5 winds, but fishing can still be done in the leeward areas of the beach, but the hook-eating rate of fish is poor; fishing can still be done on medium and small inland waters, but it is difficult to lift the rod and throw the hook weight into the fishing spot. Moreover, the waves are undulating, making it difficult to see the buoy clearly, and the wind force will continuously shift the line and buoy, resulting in a poor hook rate for fish. Winds above Level 5 are called strong winds, and fishing is generally stopped. Wherever the Category 12 typhoon struck, fish and aquatic animals panicked and took refuge. However, most storms are accompanied by precipitation. Except for cold waves, it is a good time for fishing after other storms.

7. The relationship between tides and sea fishing. Ocean tides are usually twice a day. The ones during the day are called "tides" and those at night are called "tides". During the synodic period of each month, the moon, sun and earth are in a straight line. At this time, the gravity is strongest and the tide is also the highest, which is called "spring tide". During the first and last quarter of each month, the positions of the sun, the moon, and the earth form a right angle, and their gravitational forces cancel each other out a lot, and the tides are also low, which are called "neap tides." The highest tide is "full tide" and the lowest tide is "low tide". It takes about 6 hours from high tide to low tide; it takes about 12 hours from the last high tide to the next high tide.

Sea fishing is best at high tide, as fish are active and follow the tide to the shore to look for food. At this time, beach fishing, rock fishing and boat fishing are all the best. During the high tide of spring tide, the tide level is higher than usual, the sea water is turbulent, rises and flows quickly, and the rate of fish eating hooks is high. However, due to the strong current, it is easy to be in danger. Mid-tide is the tide level between spring tide and neap tide, which is a favorable opportunity for sea fishing; the mid-tide after spring tide is better when the tide rises, because the fish hook rate is high and there is no danger due to the tide being too large. The tidal force of neap tides is small, and the tide level is low during high tide. The sea water rises slowly and flows slowly. Only small marine fish eat the hook, and it is difficult to catch large and medium-sized fish.

Fishing is not allowed during spring tide, mid tide, neap tide or low tide. Because the tide recedes quickly, the fish have a premonition and no longer look for food near the shore. Of course, the effect of boat fishing is better if it is far away from the coast, but the hook rate is not as high as during high tide.

There are also several kinds of tides: one is "high tide", that is, after the tide recedes, the water level difference is small, the current is unstable, fish do not eat, and fishing is not suitable. The second is the "dry tide", which is the water level when the tide recedes to its lowest point. At this time, fish swim to the sea and no fish can be caught on the beach. The third is "full tide", that is, the tide reaches its peak. At this time, the tide does not move, the fish's appetite deteriorates, and generally no fish can be caught. The fourth is "red tide", that is, the sea water turns reddish purple. This is caused by the rapid reproduction of microorganisms (algae). At this time, the water is lack of oxygen, and the fish lose appetite or stop eating. In severe cases, they die in groups and it is not suitable for fishing.

8. The relationship between water flow and fishing. As the old saying goes, "Flowing water does not rot." Only running water is pure and has more oxygen. Fish have strong appetites. Still water is mostly stagnant water, and the water quality often becomes corrupt due to various reasons. , so even if you choose to fish in still water, you usually choose the wind outlet. The wind will blow the water into waves, causing local flow and causing the fish to gather together to increase the hook-eating rate.

Whether it is the sea, rivers or streams, it can be divided into two categories: flowing water and still water, and fishing is mostly done in flowing waters. So, how much moving water is it best to fish? At sea, when fishing with a hand pole or throwing a pole at a fixed point with the boat, if the current speed exceeds 10 knots/hour, it will be difficult to position the hook and sinker; but if it is as level as a mirror, the water flow It is difficult to catch fish if it does not move, so the fish’s appetite is not good at this time; the optimal flow rate is 2 to 5 knots per hour. At this time, the seawater is rich in oxygen, the fish have a strong appetite, and the hook eating rate is high. Various fishing methods can be used . When fishing on the seashore, the flow speed at high tide should not exceed 5 knots, preferably 2 to 3 knots. At this time, the tide flows towards the shore and people retreat while fishing. There is no danger and the fish will eat the hook more easily. high. If the flow rate is within 1 knot, the effect will be poor. It is difficult to catch fish on the beach at low tide.

In inland rivers, if the river surface is about 50 meters wide and the flow speed in the center of the river is more than 2 meters/second, fishing cannot be done; if the flow speed in the center of the river is 1 to 2 meters/second, fishing can be done in You can float or suspend fishing at the bends of the river where the current is slow. You can also troll or beach fish 3 to 5 meters offshore. If the flow rate in the center of the river is 0.5 to 1 meter/second, you can fish 3 to 5 meters offshore. Fishing or trolling at the bottom of a bay of 10 meters, but the lead drop must be heavy; if the flow rate in the center of the river is about 0.1 m/s, you can throw the throwing rod to the center of the river for fishing, or extend the hand rod 6 meters to sink to the bottom fishing. Since running water can bring fresh food and oxygen, fish have a high hook-eating rate.

Because the hook does not sink to the bottom and drifts with the water, stream fishing can be fished even in streams with a speed of 2 meters per second, and the effect is good. However, once a stream approaches a deep valley and turns into a waterfall, flowing downhill with a flow speed of more than 3 meters/second, fishing is not allowed and it is prone to danger.

9. The relationship between aquatic plants and fishing. Fishermen often say: "Fishing without fishing for grass is a waste of money." The reason is that aquatic plants are closely related to the lives of fish. Everywhere fishermen go, they always look for places with aquatic plants or branches poured into the water to set their hooks.

Aquatic plants, duckweed, and algae are all feeds that fish like to eat, especially herring, grass carp, etc., which mainly eat plant-based feeds, prefer to live in waters with aquatic plants.

Aquatic plants absorb carbon dioxide and release oxygen during photosynthesis. Places with many aquatic plants naturally have sufficient oxygen. Aquatic plants can provide shade, and the water temperature in aquatic plants is slightly lower in summer than in areas without aquatic plants. Fish often rest in aquatic plants in order to "escape the heat." There are often small insects living on the stems and leaves of aquatic plants, which are also food sources for fish. Waves will send floating objects on the water surface to the edge of aquatic plants. Due to the obstruction of aquatic plants, these floating objects will not float elsewhere. The food source of fish is naturally richer than in other waters without aquatic plants.

However, more aquatic plants are not always better. In some ponds, the entire water surface is covered with aquatic plants, which is not good. On the one hand, there are too many aquatic plants and there is nowhere to hook the hook. After the fish is hooked, it will swim into the aquatic plants and it is difficult to lift the rod; more importantly, there are too many aquatic plants, which affects the contact between the air and the water surface. The water contains little oxygen and is not suitable. The fish survive. If there are patches of aquatic plants but the pond is not full, fishermen can use hooks or other tools to make a "hole" in the aquatic plants to clear a water area without aquatic plants. If they set the hook in this place, the fishing effect will definitely be good.