Why do blackfish float to the surface

Expert Answer

Too low air pressure: Too low air pressure will lead to insufficient oxygen in the deep water layer, and the blackfish will float to the surface to breathe fresh air.

Foraging: Blackfish generally stay in the deeper layers, but when the temperature, air pressure, light and other conditions are right, they will also float up to the shallows near the location where small animals are more abundant to feed.

Digestion: Blackfish need more oxygen to digest their food if they eat too much after foraging. If there is not enough oxygen in the depths, they will rise to the surface where there is plenty of oxygen.

Blackfish fishing bottom or floating Blackfish itself is a bottom fish, more frequent activity in the bottom, fishing bottom is more likely to be successful. Blackfish is a fierce carnivorous fish, you need to choose the bottom of the water grass, rocks, because the nearby small animals are abundant, attracting many blackfish to the surrounding activities. Especially when the temperature is over 30°C as well as below 10°C, blackfish stay on the bottom all the time because they are sheltered from the cold. However, blackfish don't stay still in a certain position all the time, and there are more reasons for them to come up to the surface, which makes it necessary to fish for floating. Fishing blackfish with earthworms, red worms and other live bait, let them sink to the bottom first after hanging the bait, and then gradually rise.