How to catch black pit tilapia without opening its mouth?

1. Water temperature: Tilapia is a warm fish. The optimum growing water temperature is 28 ~ 32℃, and the critical feeding water temperature is 15 ~ 35℃. When the water temperature is lower than 15℃ or higher than 35℃, the feeding is completely stopped, and when the water temperature is lower than 10℃ or higher than 4 1℃, it will soon die, so tilapia should be caught.

2. Air pressure: Tilapia is very sensitive to air pressure, because air pressure will affect dissolved oxygen in water. The optimum air pressure for tilapia fishing is 990 ~ 1005 hectopascals. From the point of view of air pressure change, we should choose the weather where the air pressure rises suddenly or continuously. When the air pressure suddenly drops or shows a downward trend, tilapia has low enthusiasm for eating and even does not open its mouth. At this time, there is no good way except to close the pole, but you can also try to fish in living water places such as the water inlet.

3. Bait: Tilapia is a typical omnivorous fish and is particularly interested in fishy bait. Tilapia is generally caught with liver-flavored or fishy bait, such as natural bait such as earthworm, red worm and wheat grain, and fresh commercial bait such as giant bait, wild killing and storm. When using commercial bait, factors such as taste type, atomization state, palatability and hooking property must be considered, otherwise tilapia may not open its mouth to eat bait.

Four, fishing methods:

1, hand fishing: first make a big nest 3 ~ 4 meters offshore. The general bait is meat bait such as earthworm, and the fish hook is single hook or double hook. When tilapia eats a hook, the float will not react too obviously, and most of them will shake up and down, with little amplitude. You can often catch fish by lifting the pole at the right time.

2. Double hook sticking to the bottom method: firstly hook two slightly thin sub-threaded bolts, put on meat bait such as red worms and earthworms, and slowly move the fishing rod to the left or right to make the double hooks move in parallel at the bottom of the water. Try to get the bait close to the fish and send it to the fish, so that the fish have to swallow the hook and eat the bait.

3. Cross-hook method of sea pole: firstly, tie 4-5 small hooks into a cross-hook, hang meat bait such as earthworm and shrimp, hang the bait, and then throw it into the water outside 10 ~ 20m, tighten the fishing line, support the fishing pole, hang a small bell to wait for fish news, and then lift the pole when the bell rings loudly.

Introduction of tilapia

Chordata of the order Perciformes, Sparidae and Tilapia. The body side is flat, the head is of medium size, and the mouth is in the terminal position; Eyes are the same size, slightly higher than the head; The lateral lines of the upper and lower segments have scales; The dorsal fin is developed, starting from the posterior edge of gill cover and ending at the front end of caudal stalk; The pectoral fin is long, reaching or exceeding the end of the ventral fin, without hard spines, the ventral fin is in the chest position, and the end of the caudal fin is blunt and round; Body color is yellowish brown to yellowish brown, from back to abdomen, from deep to light; White chest with diphtheria; Males are red; The female fish is darker. Also known as African crucian carp, South crucian carp and Vietnamese fish.

Tilapia is a tropical fish, which originated in Africa. China was first introduced into Taiwan Province Province of China from Singapore. Tilapia likes high temperature, is resistant to low oxygen and high salt, and can be used in seawater and fresh water. Omnivorous, adult fish like plankton and benthos, which are predatory and grow rapidly, and the growth rate of male fish is higher than that of female fish. Mature female and male parent fish are placed in the same breeding pond, and can cross breed once every 30-50 days. Tilapia can live for 5-7 years.

Because tilapia has strong adaptability and reproductive ability, it often affects the local aquatic environment and poses a threat to other organisms. Tilapia has fewer thorns, tender and delicious meat and good taste. Rich in nutrition, it is rich in eight amino acids necessary for protein and human body, especially glutamic acid and glycine, so it is called "white meat salmon" and "2 1 century fish".