Flounder, as a collective name for the fishes of the order Scleractinian flounder, has unique morphological features and ecological habits. The following is a detailed introduction to flounder:

I. Basic Information

Alias: Flounder is also known as sandy, left mouth, tooth partial, partial mouth, plaice, etc.

Morphological characteristics:

The shape is oval, very flat, the body is even laterally compressed, the adult body is asymmetrical from side to side.

The color of the back varies according to the surroundings, and the eyeless side is usually unpigmented.

The abdomen is white.

The mouth is very small, and the eyes are located on the right (or left) side of the face, so named because both eyes grow on the same side of the head.

II. Distribution and Habitat

Distribution range: Flounder races are rich and diverse, with distribution in many parts of the world, especially in the tropical to frigid waters.

Habitat: Juvenile fish live in the deep sea, and adult fish live in the bottom sediment of rivers or continental shelves because they have been deformed. They are especially suitable for benthic life on the seabed, preferring gravel areas with broken reefs on the seabed as well as seas with mud and sand.

Third, the habits of life

Food: mainly feed on benthic invertebrates and fish.

Swimming style: When swimming in the water, the flounder does not swim with its spine upward like other fishes, but with the side with eyes upward, swimming sideways.

Resting mode: when resting, it will lie flat on the bottom of the sea, and part of its body is often buried in the mud and sand. The color of some flounder's body is even the same as that of its surroundings, which is conducive to hiding and avoiding predation.

Economic Value

Nutritional value: Flounder is rich in protein, vitamin A and vitamin D and calcium, phosphorus, potassium and other nutrients, especially vitamin B₆ content is quite abundant, while the fat content is less. In addition, it is also rich in the brain's main component of docosahexaenoic acid (DHA), regular consumption can enhance intelligence.

Medicinal value: Halibut has the effect of removing wind-dampness and activating blood circulation. The unsaturated fatty acids contained in halibut are easily absorbed by the human body, which can help reduce blood cholesterol and enhance physical fitness.

V. Species and Quantity

Species: As of 2011, there are 772 species of flounder in the world and 154 species of flounder in China.

Quantity: 74% of the living flounder species live in tropical and subtropical waters, especially in the Indo-West Pacific Ocean, where there are 125 species of flounder.

Culture and Fishing

Aquaculture conditions want to meet the halibut rearing conditions, you can put them into the deep sea water with high cleanliness and low water temperature.

Fishing: In the United States, flounder is a valuable seafood species, abundant in temperate waters along the coast. They usually inhabit the seabed at depths of 30 to 50 meters, and swim to shallower waters after the Mangkhut season, which is also their spawning season.

To summarize, flounder is a unique form, widely distributed, high economic value of fish, not only for people to provide a rich source of nutrition, but also for anglers to bring fun.