and in calm
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
Sudak is the largest representative of the Perch family. It has an elongated squamous body, fanged mouth with small teeth. Its back is greenish-gray, on it there are sharp spikes and two large wide fins, one of which has dark spots, dark vertical stripes on its sides, and ventral and anal fins are light yellow. Gill covers without or partially covered with scales. Zander lives in many rivers and lakes, reservoirs, and even in some clean sandy deep quarries of the basins of the Baltic, Black, Azov and Caspian seas. It is also universe in the waters of the Moscow region.
This fish prefers running clean water, rich in oxygen, keeps in places free of vegetation, most often near the bottom, in pits with flooded trees or snag, stones or boulders, on steep banks, near destroyed river structures. Spawns in May – early June. Continue reading