anguilla japonica
Common name: Wind eel, eels, green eel
English name: japanese eel
Category: Osteichthyes (osteichthyes), eel head, eel Branch (anguillidae), genus Anguilla (anguilla)
Features: Japanese eel is a small and medium sized fish. Body length of 300-450 mm, weighing 250-500 grams. The maximum body length of up to 1.3 meters. Slender, cylindrical near the front, the rear side of the flat, pointed head, flat flat snout, the front of the eye is located in the head, big mouth, jaws and vomer are two with a fine-tooth, gill opening in front of the base of the pectoral fin . Scales small, buried in the skin, the body and more mucus. Dorsal, anal long and low, were connected with the caudal fin, no pelvic fins. Dark green upper body, white belly. Is a high consumption of fish, tender meat, delicious, rich in protein and fat content.
Japanese eel 5-6 one thousand / kg, average body length of 5.75cm, the average weight of 0.4g. Body back gray and black to brown, belly white, without any markings. Japanese eel white earners appear in late March to the end of April, generally in the intersection of China's coastal and brackish water capture. Japanese eel tail has black rings, slender body, eyes, small mouth, more pointed snout, snout to body length between the anus moment accounts for 39% of the anus to the caudal end of the moment accounts for between 61% of body length Lord on a longitudinal groove on the jaw bone, torso body length of 26.9%.
Distribution: Japanese eel in the western Atlantic Ocean near the Mariana Islands to spawn. Widely distributed in Japan, Hokkaido to the western Pacific waters between the Philippines, mainly in Vietnam, the Philippines, Taiwan, mainland China, the Korean peninsula and the Japanese archipelago (except for some areas of the north). China from the 1990s began, the introduction of the Japanese eel, Japanese eel aquaculture development.
Colonization and sources: Japanese eel originating in the sea, fresh water anadromous to grow back to the sea after spawning. Japanese eel life-long migratory journey of thousands of kilometers in the southern waters of fish larvae due to the birth of the North Equatorial currents drifted west, then follow the Kuroshio north, after three to six months, and then travel to Japan, Taiwan , mainland China and other East Asian coast. During the migration, the Japanese eel elvers from the larvae will become fry. Japanese eel breeding season in autumn and winter, migratory fish in the sea a drop in benthic fauna, fish, shrimp, worms, aquatic insects and crabs, crustaceans for food, and occasionally also reflected higher aquatic feeding debris plants. |