laitimes

Fishing cold knowledge: the thermocline in the movie "Megalodon", can you encounter fishing?

#Autumn life check-in season #Introduction: Dao can be very Dao, there are many kinds of Dao in the world, and fish road + chivalrous road, the spark of collision is the fisherman, today, the fisherman has exceeded 140 million, looking forward to the vigorous development in the future.

Fishing cold knowledge: the thermocline in the movie "Megalodon", can you encounter fishing?

Let's start with the conclusion: it can be encountered, but it is not so scary.

‬温跃层是什么

Simply put, the thermocline is a layer of water where the temperature changes faster than normal, and the thermocline in "Megalodon" is not a standard thermocline, but rather a hydrogen sulfide layer.

Although the thermocline does not have the strength of the fish in the film that cannot survive when it is drilled in, it does have the possibility of separating the creatures. For example, crucian carp belongs to broad-temperature fish, generally the water temperature is about 20 degrees the best, and the water temperature above the thermocline of this water surface is 22 degrees, the bottom is 20 degrees, where do you say crucian carp is concentrated? Similarly, different fish are concentrated in different water layers according to water temperature, and the thermocline becomes a large fish layer dividing line.

Fishing cold knowledge: the thermocline in the movie "Megalodon", can you encounter fishing?

‬温跃层的形成以及对钓鱼的影响

Those who have taken physics courses know that in the process of heat transfer, substances with large specific heat capacity have a strong ability to absorb heat, and then less heat is released outward, and the temperature changes slowly. The specific heat capacity of water is 4.2*10^3J/(kg·°C), and the specific heat capacity of dry soil is 0.84×10^3J/(kg•°C), which shows that the specific heat capacity of water is relatively large. (A more intuitive feeling is that the temperature of the sun rises much more slowly than drying the soil)

This will cause the above water to change faster with the temperature, and the water below due to the reception of less heat above, coupled with slow temperature changes, so it will be maintained at a temperature for a long time, more than 1 meter of water depth has thermocline phenomenon, the deeper the more obvious, the greater the temperature change in a short period of time.

Fishing cold knowledge: the thermocline in the movie "Megalodon", can you encounter fishing?

Of course, the thermocline will also subvert the perception of temperature difference and fishing among anglers.

It is said that the temperature difference between the seasons is large, the ups and downs of the fish are large, it is not good to fish, but it is not, you say that the water temperature most suitable for crucian carp survival is 20 degrees, and the thermocline is the temperature of one season, and the temperature of the previous season below, where are the fish concentrated? This is how to fish for shoals in early spring and deep pools in early summer, after all, the water temperature in these two cases is just right.

Not only Taiwan fishing, the concept of thermocline has long been introduced in Luya fishing, and it has long become a must-learn for many anglers.

‬后记

Resources:

Human-taught version of the physics textbook

Sogou Encyclopedia crucian carp habits

Read on