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Illumination of the aquatic environment to a large extent determines the motor and nutritional activity of fish, and color vision is used by them to recognize aquatic and plant organisms by their color. In some fish, color vision serves to reflexively change color for protective purposes.
Daily changes in the intensity of illumination are the cause of daily vertical migrations of fish. For each fish species, there is a certain limit to solar radiation, above which the conditions for them become unfavorable, and then they sink to a depth or take shelter in shaded places and stop eating. This is confirmed by the behavior of fish in cloudy weather – they remain active throughout the daylight hours. By the way, invertebrates, crustaceans, leading a bottom or bottom lifestyle, do not tolerate direct sunlight. Continue reading
Fishing for bream in quarries, reservoirs and lakes is different from fishing on the river.
The first and main feature is that if the bream in the rivers during the day stays approximately in the same areas, then in stagnant water we can observe its pronounced daily migration. In the morning, evening and night, he goes to eat in shallow areas, and during the day goes to the deepest places of the reservoir. If it is cloudy, the bream prefers to stay in shallow water longer, and a sharp change in the weather sometimes forces him not to leave the pits. Continue reading
The structure of the pike is adapted for fast movements. Her body shape is Chondo-elongated (arrow-shaped) with far protruding flat jaws, well dissecting the water. Dorsal and pre-caudal fins moved closer to caudal. The wide and powerful caudal fin, together with the dorsal and pre-caudal, gives the pike an opportunity to make instant and strong forward throws during wave-like movements of the back of the body and when striking with the tail. Her body is covered with small scales and a large amount of mucus, which also contributes to the speed of movement.
Pike Continue reading