Do not be lazy to drill holes
Makes sense to direct attention to one feature of fishing with the arrival of meltwater in ponds. It can be assumed that in the frigid ice ponds and reservoirs the water pressure begins to rise (evidence is the rising and splashing of water in the hole), «holding» the fish to the bottom. And, in turn, tends to change at the level of medium and small, where the oxygen regime favorable due to the presence of ice cover in coastal areas and peaks of different violations – «vents».
Atmospheric pressure usually decreases during the warm daytime air, and the warmer the day, the greater its reduction. Days, but with a somewhat lower and insignificant during the day pressure often meet the thaws, rain, or fog and a little snow. When the pressure outside of the reservoir and the growth under the ice, all the brighter is the «effect of the opening of the bottle.» Dissolved oxygen with increase in external differential air pressure (decrease) and the pressure of the water column (growing) faster starts to evaporate from the water and accumulate in the form of air bubbles over the surface of the ice. When the «discovery» of the ice cover by drilling holes to the fresh hole going almost all accumulated in the district of air circulating on the nearest ball. The most active biting off the coast and at shallow depths are usually marked on the new holes, energized «oxygen cocktail». I remember there was even a tips to pump air from the inner tube under the ice as a stimulant for the bite. In confirmation of the theory «air activation» biting through svezhepoymannyh holes under the ice is the fact that already ice-free during the night hole, yesterday gave «highlands» a significant catch, the next day refuse to work. But it happens enough to drill in some thirty to fifty centimeters new as yesterday’s success is starting to become today’s reality. From all this it must be concluded that the air, flowing with melt water through natural cracks and old holes in the shery as «aerator» is noticeably inferior oxygen, which tends to svezhepriobretennoy the hole with ice and the surface layers of the water column. In addition, a large part of the natural forage fish attracted to the fishery, gets to the hole not from the upper ice surface, and the bottom or the entire adjacent sea areas from bottom inclusive.
When fishing in small places and takes fish from the bottom (especially in the morning), and at any level (mid-day). But not all species of fish go higher. For the minnow, crucian carp and carp, this height is usually limited to twenty-five inches, so it can blow up and ruff. The rest of the Belle and predators are less tied to the bottom layers, and are willing to part with them when changing short-term circumstances of life. Already at depths of about a meter at the bottom surface of the ice, capture the most species of fish from the bottom or in the lower layer becomes problematic. Of course, this statement is not for all occasions, but only to those situations when the middle pre-spring day, warmed the sun, or breathed the damp warmth of the thaw (both leads to a decrease in atmospheric pressure).