CATDOLL : CATDOLL: The life habits of barracuda

Living habits:

1. Habits

A fish that lives near the coast. It likes to live in river estuaries and bays, and also enters fresh water. It is lively and likes to jump. It often swims upstream in groups in the upstream and eats organic matter in the mud at the bottom of the water. It is relatively large in size and is found in the South China Sea, the East China Sea, the Yellow Sea, and the Bohai Sea in China. It likes to live at the junction of salt and fresh water, enter estuaries and harbors, and is one of the harbor fish. Schools of pike mainly live in estuaries and harbors. They have the habit of entering fresh water along rivers to find food, and have obvious phototropism and rheotaxis.

The salt adaptability of pike is 0-38‰, and they can survive in seawater, brackish water, and inland freshwater lakes. Pike can live and feed normally in waters with a water temperature of 3-35℃, and the most suitable water temperature range is 12-25℃. When the water temperature is lower than -0.7℃, they will die.

2. Food Habits

The pike has a wide range of food habits and is an omnivorous fish that mainly feeds on plants. It mainly scrapes benthic diatoms and organic debris deposited on the surface of the bottom mud, and also eats some filamentous algae, basidiomycetes, polychaetes, mollusks and small shrimps. In artificial breeding conditions, it also likes to eat rice bran, bean cake powder, peanut cake powder, dried water fleas and artificial compound baits. During the growth cycle, the pike with a body length of 20-40 cm has a high feeding intensity. Before the reproductive period, the feeding intensity is relatively high, and the esophagus and stomach are always full of food. During the reproductive period and spawning period, it rarely eats or does not eat.

From a seasonal perspective, spring, early summer and autumn are the peak seasons for feeding. In winter, due to the drop in water temperature, fish enter the hibernation period, at this time the fish eat very little or stop eating.

Additional information

Reproduction method:

The barracuda is relatively small, generally about 200 mm long, and is distributed along the coasts of the Indian Ocean and the western Pacific Ocean. In China, it is only found in the South China Sea and the East China Sea. Pike and mullet are relatively large, generally 200-500 mm long, and the largest are 600-800 mm. Pike is the main harbor fish species in the Yellow Sea and Bohai Sea, and mullet is the main harbor fish species in the East China Sea and the South China Sea. Pike is distributed in the western North Pacific Ocean, and mullet is widely distributed in the Atlantic Ocean, Indian Ocean, and Pacific Ocean. Pike and mullet are produced in the four major sea areas of South China, East China, Yellow Sea, and Bohai Sea.

The breeding season of barracuda varies from place to place. In Bohai Bay, it is from late April to early June, and in Zhejiang, it is from early April to early May. The sexual maturity age of male fish is 2 to 3 years old, and that of female fish is 3 to 4 years old. Juvenile fish feed on zooplankton, while adult fish feed on diatoms and small organisms. When raised artificially, they can be fed with rice bran, bean cake, distiller's grains and other feeds. They gather in groups regularly every year to lay eggs at the mouth of the harbor.

References Sources:

Baidu Encyclopedia - Barracuda

Baidu Encyclopedia - Barracuda

Feeding habits: Pike has a wide range of food habits and is an omnivorous fish that mainly feeds on plants. It mainly scrapes benthic diatoms and organic debris deposited on the surface of the bottom mud, and also eats some filamentous algae, basidiospores, polychaetes, mollusks and small shrimps. Under artificial breeding conditions, it also likes to eat rice bran, bean cake powder, peanut cake powder, dried water fleas and artificial compound baits. The feeding intensity of pike varies between day and night, seasons, and individuals. In the daily cycle, it feeds during the day and night, but the feeding intensity is usually greater around dawn and around sunset than at night; in the growth cycle, the feeding intensity of pike with a body length of 20-40 cm is large; before the reproductive period, the feeding intensity is relatively large, and the esophagus and stomach are always full of food. During the reproductive period and spawning period, it rarely eats or does not eat. From a seasonal perspective, spring, early summer and autumn are the peak seasons for feeding. In winter, due to the drop in water temperature, fish enter the hibernation period, at this time the fish eat very little or stop eating.

Migratory barracuda is a nearshore semimigratory fish. It does not migrate long distances, but can migrate over short distances and within a small range depending on the season, water temperature, and its own development. Fin fish often live in shallow seas or estuaries at a depth of 1 to 10 meters. When the weather turns cold, they swim to the deep sea to hibernate. However, some also hibernate in deeper bays and shallow seas. Fin fish lay eggs in deeper sea areas, and the hatched fry swim to the nearshore estuaries with the tide, staying at the confluence of salt and fresh water to feed and grow. Barracuda generally grows in the nearshore sea, and regularly forms large groups to lay eggs in harbors and estuaries every year. Between June and July, a large number of young fish born that year appear along the coast of the Yellow Sea and Bohai Sea, and enter the estuaries of rivers. When it is cold, they swim to deeper sea areas to hibernate.

In April every year, pike spawn in various estuaries and only make short migrations. In December, they hibernate in the deep sea. In the spring of the following year, they grow and fatten in the near-shore estuaries, forming a fishing season. Pike is rich in nutrients, tender and delicious, with a high protein content. It is a delicacy at high-end banquets, especially the spring pike. The head of the cooked pike is the most fragrant, so there is a saying among the people that "you can lose the car and the cow, but not the pike head." Pike can be caught all year round except during the closed fishing season.

Barracuda, also known as branch fish and red fin, has a cylindrical body, a short pointed and flat head, underdeveloped fat eyelids, red eyes, large and thick scales, a dark back, a white belly, two dorsal fins, a slightly "human" shaped mouth, and velvety teeth on the upper and lower sides. Barracudas live in groups according to age, and the catch is relatively single, usually two or three years old.

Barracuda is lively and likes to jump. It is a near-shore fish that often lives in estuaries and bays. Juvenile fish often swim upstream in groups, while adult fish do not swim long distances. Barracuda has shown a wide range of ecological plasticity in terms of salinity, humidity, pH, and nutrition.

Wide-salinity: Pike can live in shallow seas, estuaries, saltwater ditches, inland saltwater lakes, freshwater lakes, and ponds of all sizes, ranging from 35% high-salinity seawater to 0.5% freshwater. It can live in all kinds of bottoms, not only in plain waters, but also in high-altitude waters at an altitude of 1,470 meters.

Wide temperature range: It can tolerate water temperature from 0-35℃, and the most suitable growth temperature is 18-28℃. However, the adaptation of barracuda to water temperature changes needs to be gradually changed. If the temperature rises and falls suddenly in a short period of time, it will cause death.

PH value: The most suitable PH value for the growth of pike is 7.6-8.5, and the adaptable range is about 7.6-9.3 and hard water with a total alkalinity of 213.8 mg.

i Dissolved oxygen: Pike has a large ecological tolerance to oxygen, and the oxygen consumption increases with the size of the individual. When the dissolved oxygen content in the water is 5.1-8.4 mg/L, it is most beneficial to growth.

Feeding habits: Pike has a wide range of food habits and is an omnivorous fish that mainly feeds on plants. It mainly scrapes benthic diatoms and organic debris deposited on the surface of the bottom mud, and also eats some filamentous algae, basidiospores, polychaetes, mollusks and small shrimps. Under artificial breeding conditions, it also likes to eat rice bran, bean cake powder, peanut cake powder, dried water fleas and artificial compound baits. The feeding intensity of pike varies between day and night, seasons, and individuals. In the daily cycle, it feeds during the day and night, but the feeding intensity is usually greater around dawn and around sunset than at night; in the growth cycle, the feeding intensity of pike with a body length of 20-40 cm is large; before the reproductive period, the feeding intensity is relatively large, and the esophagus and stomach are always full of food. During the reproductive period and spawning period, it rarely eats or does not eat. From a seasonal perspective, spring, early summer and autumn are the peak seasons for feeding. In winter, due to the drop in water temperature, fish enter the hibernation period, at this time the fish eat very little or stop eating.

Migratory barracuda is a nearshore semimigratory fish. It does not migrate long distances, but can migrate over short distances and within a small range depending on the season, water temperature, and its own development. Fin fish often live in shallow seas or estuaries at a depth of 1 to 10 meters. When the weather turns cold, they swim to the deep sea to hibernate. However, some also hibernate in deeper bays and shallow seas. Fin fish lay eggs in deeper sea areas, and the hatched fry swim to the nearshore estuaries with the tide, staying at the confluence of salt and fresh water to feed and grow. Barracuda generally grows in the nearshore sea, and regularly forms large groups to lay eggs in harbors and estuaries every year. Between June and July, a large number of young fish born that year appear along the coast of the Yellow Sea and Bohai Sea, and enter the estuaries of rivers. When it is cold, they swim to deeper sea areas to hibernate.

In April every year, pike spawn in various estuaries and only make short migrations. In December, they hibernate in the deep sea. In the spring of the following year, they grow and fatten in the near-shore estuaries, forming a fishing season. Pike is rich in nutrients, tender and delicious, with a high protein content. It is a delicacy at high-end banquets, especially the spring pike. The head of the cooked pike is the most fragrant, so there is a saying among the people that "you can lose the car and the cow, but not the pike head." Pike can be caught all year round except during the closed fishing season.

Same upstairs