Examples of Fish in Hainan

Anguilla marmorata

    Anguilla japonica is an animal of anguillidae and genus Anguilla. The body shape of Anguilla japonica is similar to that of Anguilla japonica, with long body, thick round cylinder in front and flat tail. The distance between the starting points of dorsal fin and gluteal fin is shorter than that of conical head. Kiss flat. The angle of the mouth extends beyond the posterior edge of the eye. The mandible is slightly protruding with no teeth in the center; the front end of the two jaws is tufted with lateral teeth. The lip fold is wide and thick. The gill aperture is small. The scales are small and arranged in a mat like pattern. The scales cross each other vertically and are buried under the skin. The side line is complete and the hole is obvious. The dorsal fin is low and long, and its starting point is closer to the gill hole than to the anus. The distance between the starting point of dorsal fin and that of gluteal fin is larger than that of head. The pectoral fins are round. There is no pelvic fin. 100-110 vertebrae. The dorsal side of the body and fins are covered with brown spots, and the gap between body spots and the edge of pectoral fin are yellow. Ventral white or bluish gray, dorsal fin and anal fin posterior edge black.

 

​Hainan long rumped catfish

    It has a sharp head and long whiskers, similar in appearance to that of the long rumped goblin, but its body is higher; its eyes are slightly smaller; the distance between eyes is slightly larger; there are more anal fin lines, with 34-43 branching fins; the most important difference is that the spoon bone is thick and wide, the upper edge is arc-shaped, and the end of the posterior process is blunt and round.

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​Southern wave fish

    South wave fish, for the Cyprinidae Bo fish. Southern wave fish is also known as red eye fish in Dongguan, because its eyes can be seen to be red when the fish is illuminated with fire or light, especially at night. This fish is a typical representative of Paleogene primitive (ichthyosan) subfamily.

It is a kind of small fish with body length less than 100 mm. Body length, lateral flat. Head short, pointed. It does not need a protrusion of the upper jaw and is slightly inclined to the front of the mandible. The lateral line obviously curved to the ventral side and located on the lower side of the body. The dorsal fin has no hard spines, and is located behind and above the abdominal fin; the ken, ventral and gluteal fins are short, the caudal fin is long and thin, the tail fin is deeply forked, and the leaf tip is pointed.

 

​spinibarbus hollandi

    Spinibarbus belongs to Cypriniformes, Cyprinidae, Spinibarbus. Commonly known as: green stick, kengjian, Guangyan fish, huangjuan, coarse scale fish. Ichthyoidea; Cypriniformes; Cyprinidae taxonomic status: sternum.

 

​Cuttlefish

    Cuttlefish, Cypriniformes, Cyprinidae, labeo subfamily, a kind of fish of the genus cuttlefish. Commonly known as: cuttlefish, Dongpo fish, black stick, black fish, fish (compendium of Materia Medica). English Name: beardless sucking bard. Body length, slightly cylindrical, ventral surface in front of the pelvic fin is flat, tail side flat. The head is broad and flat, slightly square. The snout is blunt, with horny protuberance at the front end; the mouth is large, lower position, crescent shaped, without any need. There is a fleshy pad in the center of the upper lip. The periphery is free. There is a small milky protuberance on the upper lip. There is a deep groove between the front edge and the fleshy pad. The eyes are small and the position is high. Scales medium large, ventral scales of ventral surface buried subcutaneously; dorsal fin without spines, margin concave. The dorsal part is grayish brown, with a few gray brown scales on the back. The male and female fish usually have the Pearl Star, which is more significant in the reproductive period.

 

​Pomfret

    Pomfret, also known as mirror fish, flat fish, white Chang, fork fish (etc. The body is short and high, and the extreme side is flat, slightly rhombic. The head is small, the snout is round, the mouth is small, and the teeth are thin. The abdominal fins of adult fish disappeared. The caudal fin bifurcates deeply and the lower lobe is longer. The body is silvery white, and the upper part is slightly bluish gray. It feeds on crustaceans and other animals. Pomfret is a kind of small and medium-sized fish with both edible and ornamental value in tropical and subtropical areas

 

​Large yellow croaker

    Pseudosciaena crocea is a kind of Pseudosciaena crocea. The upper part of the body is yellow brown, and the lower part has golden yellow glands under each scale. The dorsal fin is light yellow brown; the caudal fin is light yellow brown, and the end margin is black brown; the hip, abdomen and pectoral fins are bright yellow. The oral cavity is white with reddish lip. The upper part of gill cavity is black and the lower part is pink. It mainly inhabits coastal and coastal sandy mud bottom waters, most of which inhabit in the middle bottom water area and enter the estuary area. They are tired of strong light and like turbid water. They often float up at dawn, dusk or spring tide, and descend to the bottom in daytime or neap tide. Main play to small fish and shrimp and other crustaceans for food. The swim bladder can produce sound, and it will make "cluck" sound during the reproductive period; when the fish swarm is dense, it will make the sound of boiling water or pine waves; when the breeding season comes, it will migrate to the estuary or the shallow water near the island or inner bay. It is distributed in the Northwest Pacific region, including the coastal areas of China, Japan, South Korea and Vietnam, and in the Southern Yellow Sea and East China Sea in China.

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Grass Carp

    Grass carp (Ctenopharyngodon idellus) is a common carp family. The body length is 3.4-4.0 times of the body height, 3.6-4.3 times of the head length, 7.3-9.5 times of the tail stalk length, and 6.8-8.8 times of the tail stalk height. The body is long, the snout is slightly blunt, the hypopharyngeal teeth are 2 rows, showing comb shape. The dorsal fin has no hard spines, and the outer edge is straight, which is located above the abdominal fin. The distance from the starting point to the caudal fin base is closer than that to the snout. The gill rakers are short and small, with few numbers. The body is tea yellow, abdomen gray white, body side scales edge gray black, pectoral fin, abdominal fin gray yellow, other fins light color. Grass carp (Ctenopharyngodon idellus) is a typical herbivorous fish. It lives in rivers and lakes in plain areas, and generally prefers to live in the middle and lower layers of water and in the coastal areas with abundant aquatic grass. It is active in sex, swims quickly and often forages in groups. When grass carp is young, it feeds on larvae, algae, etc., and grass carp also eats some meat food, such as earthworm and dragonfly. It is widely distributed in China from Heilongjiang to Yuanjiang, Yunnan (except Tibet and Xinjiang). It has been colonized in Asia, Europe, the United States, Africa and other countries. Grass carp (Ctenopharyngodon idellus) is an important freshwater aquaculture fish in China. Together with Hypophthalmichthys molitrix, bighead carp and herring, grass carp constitute China's "four big fish".

 

​Goldfish

    The scientific name is artophagous argues (Linnaeus, 1766), the English name is spotted scat, and the trade name is golden drum fish. A fish of the genus Ceratophyllum of the family ceratophylidae. The body length of adult fish is about 30 cm. It is native to the salty and fresh water mixed waters of rivers in Indonesia, Philippines, Thailand and other places. The estuaries of rivers in southern China are also common. Zhanjiang has a variety of aquaculture.

 

​Puffer fish

    Puffer fish generally refers to teleostichthys, puffer shape order, puffer fish family of each genus. Its meat is delicious and nutritious. It is a kind of rare and high-grade aquatic product, known as "the top of dishes". However, its ovaries, livers, kidneys, eyes and blood contain highly toxic substances. Improper treatment or ingestion may lead to poisoning in mild cases and death in severe cases.

 

​Squaliobarbus curriculus

    Red eye trout is a kind of red eye trout, which belongs to the subfamily of arrowhead and red eye trout. It is a long tube shaped fish with round abdomen and flat back. Its body color is silvery white and its back is slightly dark gray. There is a significant red spot on the upper edge of the eye, so it is named red eye. It is a high-quality economic fish, which is produced in all water systems in China. It has the advantages of fast growth, strong adaptability, miscellaneous food habits and high commodity price.