Eel, alias: white eel, white eel, river eel, eel, green eel, wind bun, Japanese eel. Eel is a general term for species that fall under the classification of the order Eels. Also known as an eel, it is a fish with a long, snake-like appearance and has the basic characteristics of a fish. In addition, eels have migratory characteristics similar to salmon. Eel is a genus of fish that resembles a snake, but has no scales, and is generally found in waters at the interface between fresh and salt water.

Catalog

1. Habits

2. Morphological Characteristics

3. Distribution Range

4. Species Types

5. Nutritional Values

Habits

Eels prefer to live in clean, unpolluted waters, and are some of the most pristine aquatic creatures in the world. The eel grows in rivers and streams on land and migrates to spawning grounds in the ocean to lay its eggs when it matures, spawning only once in its life and dying afterward. This life pattern, in contrast to the anadromous nature of salmon, is called descending migratory (Catadroumous). Its life history is divided into six different developmental stages. In order to adapt to different environments, the body size and body color change greatly at different stages: Egg-stage: located in deep-sea spawning grounds. Eels spawn and reproduce in the deep sea and grow up in a freshwater environment. Temperament is fierce, voracious, active, diurnal, strong tendency to rotate light, preferring running water and warmth.

Morphological Characteristics

The eel has a long, cylindrical body with a slightly flattened tail. The upper and lower jaws have fine teeth. Scales are very small and buried under the skin. The dorsal and anal fins are low, the base is long, and the posterior end is connected to the caudal fin. Pectoral fins small, rounded. Ventral fin missing. The body is not spotted. A descending migratory fish. Spawns in the sea. Littlenecks are transparent leaf eels, in spring, when the littlenecks develop into juvenile eels, they swim in groups in rivers, fatten in tributaries or lakes, and then swim to the sea to reproduce after maturity, mainly feeding on small fishes, crabs, shrimps and aquatic insects. Generally night activities. Rapid growth, meat tender and fat, nutritious.

Distribution range

Eel Anguilla anguilla is found in the Yellow River, Yangtze River, Min River, Han River and Pearl River Basin, Hainan Island, Taiwan and Northeast China.

Species

There are 18 species of eels in the world, including four families in Taiwan: the Japanese eel, the perch eel, the Celebes eel, and the short-finned eel, but only the Japanese eel is the most abundant, and the other three species are very rare. They have survived on earth for tens of millions of years, but our understanding of them is only in the last few decades. For example, it was only in 1991 that the real spawning grounds of the eel were discovered. The sex of the eel is controlled by environmental factors and density, and when the density is high and there is not enough food, the eel will turn into a male, and vice versa, it will turn into a female. In Taiwan's rivers and streams most eels are females due to their small numbers.

The common ones are:

European eel (Anguillaanguilla)

American eel (Anguillarostrata)

Japanese eel (White eel; Anguillajaponica)

Australian eel (Black eel; Anguillaaustralis )

African eel (Anguillamossambica)

Perch eel (Anguillamormorata)

Philippine eel (Anguillamormorata)

New Zealand eel (Anguilladieffenbachi)

Indonesian eel (AnguillabicolorPacifica)

Nutritional value

Eel has the effect of tonifying the deficiency and nourishing the blood, dispelling dampness, and resisting consumption, making it a good nutrient for patients who have been sick for a long time, weak, anemic, and with tuberculosis. Eel body contains a very rare West River Rock protein, has a good effect of strong essence and kidney, is a young couple, middle-aged and old people's health food. Eel is a calcium-rich aquatic product. Regular consumption of eel can increase the blood calcium value and make the body strong. The liver of eel is rich in vitamin A, which is an excellent food for the night blind.

The nutritional value of eel is no less than that of other fish and meat. Eel meat is rich in high-quality protein and a variety of essential amino acids.

Eel vertebrae have almost everything needed for a perfect calcium source, which is respected by scientists at home and abroad, and is recognized as an ideal natural biological calcium source and a natural supplier of calcium for human beings. The ratio of calcium to phosphorus in eel vertebrae is close to 2:1, which naturally matches breast milk, and is internationally recognized as the best ratio for calcium absorption, and the bioavailability of the calcium contained in eel vertebrae is extremely high. Eel calcium is made of eel bone meal, oligosaccharides, vitamin D, milk powder as the main raw materials of health food, with calcium health function. Eel Calcium is a natural bio-calcium, which is safe and easy to be absorbed. It is safe and easy to be absorbed. The special addition of isomalt oligosaccharides has an excellent enhancement effect on bifidobacteria, the beneficial bacteria in the human intestinal tract, and can regulate the gastrointestinal function.