First of all, the bait should be placed at the bottom. Sparus macrocephalus is alert and difficult to catch. If the herring touches the fishing line while eating the bait, it will become very alert and dare not swallow the bait. So in order to prevent herring from touching the parting line when eating bait, let the bait lie on the bottom. The most common fishing method of herring in black pit is lead-free self-floating, which makes the lead pendant and the auxiliary line lie on the bottom, which increases the safety of herring when biting the hook.

Second, don't hold the fishing rod all the time. Herring likes quiet, but doesn't like noise. Some noise near the fishing point will make herring afraid to enter the nest, so when fishing herring in the black pit, the fisherman should try to keep quiet. If you hold the fishing rod all the time, the fishing rod and fishing line will become sound conductors similar to telephone lines, which will transmit external vibration to the bottom of the water and affect the biting of herring in the nest. Therefore, after throwing the rod every time, you don't have to hold the fishing rod all the time, and the hook rate of herring is higher.

Third, keep a fixed nesting frequency. The herring caught in the black pit is from farms, and most farms regularly feed particles with machines. Whenever the particles enter the water, it will produce a turbulent sound, which can make the cultured herring form a conditioned reflex. When the particles enter the water, it means that there is food to eat and then gather. Therefore, when fishing black herring in the black pit, it is necessary to keep a fixed nesting frequency, nest every 3-5 minutes, and the nesting amount is10-20, which is the best method to lure black herring.