Coilia nasus

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Coilia nasus is a species of ray-finned fish in the family Engraulidae, commonly known as the Japanese grenadier anchovy. It is found in the coastal waters of the Western Pacific Ocean, particularly around China, Japan, and Korea.

Description

Coilia nasus has an elongated body with a tapering tail, which gives it a distinctive appearance. The fish typically grows to a length of about 20-30 cm. Its body is covered with small, cycloid scales, and it has a silvery coloration that helps it blend into its marine environment. The species is known for its long, filamentous pectoral fins and a series of small, sharp teeth.

Habitat

This species inhabits coastal waters, estuaries, and the lower reaches of rivers. It is often found in brackish water environments where freshwater mixes with seawater. Coilia nasus is a migratory species, moving between marine and freshwater habitats during different stages of its life cycle.

Diet

Coilia nasus primarily feeds on zooplankton, small crustaceans, and other tiny marine organisms. Its diet can vary depending on the availability of food sources in its habitat.

Reproduction

The reproductive behavior of Coilia nasus involves spawning in freshwater or brackish water environments. The species is known to undertake significant migrations to reach suitable spawning grounds. After hatching, the larvae drift downstream to estuarine and coastal areas where they continue their development.

Economic Importance

Coilia nasus is of considerable economic importance in the regions where it is found. It is harvested for food and is a popular ingredient in various traditional dishes. The fish is often dried, salted, or fermented to enhance its flavor and preserve it for longer periods.

Conservation Status

The conservation status of Coilia nasus is not well-documented, but like many other fish species, it may be affected by overfishing, habitat degradation, and pollution. Efforts to monitor and manage its populations are essential to ensure its sustainability.

See also

• Engraulidae
• Ray-finned fish
• Western Pacific Ocean