Such as the title? ，? Silver cod itself is not cod? Generally speaking, fake cod is usually "oily fish"? ? Scientific name?

Anoplopomatidae is Anoplopoma fish?

What is the picture below? Anoplopoma fimbria, a naked fish ? , commonly known as silver cod

The body is elongated and streamlined, the cross section of the body is oval, the abdomen is straight, the back is curved and tightened back to the tail. Eyes, etc., lateral position; The head is of medium size and triangular; The anterior position of the mouth is large, the upper jaw is slightly longer than the lower jaw, and there is no chin beard; The teeth in the mouth are sharp, with 2-3 rows at the front of the maxillary and mandibular teeth, and gradually change to 1 row backward, and the medial maxillary teeth 1 circle; Two pairs of nostrils, both located in front of the eyes, in which the front pair of nostrils is smaller and covered with membrane, and the other pair of nostrils is larger and uncovered; The eyes are large and located on both sides of the head; The tongue is fleshy and flexible, with the front end of the kiss straight and melanin spots on it. The living body has a bluish gray back and a milky white abdomen; 2 dorsal fins, all triangular; The pectoral fin is broad, the ventral fin is in the chest position, small, with gluteal fin 1 piece and caudal fin forked; The anus is located in the back 2/3 of the fish, and there is a cloacal hole behind it; The lateral line is dark in color, starting from the rear edge of gill cover to caudal fin, and continuously distributed on the body side.

Distributed in the North Pacific coast and other sea areas, including Bering Sea, kamchatka peninsula, Russian, Alaska, Central California, southern Japan and so on.

There are two kinds of oily fish.

Belt? Branch? Gempylidae rose belt? Genus (? Agkistrodon acutus)? Ruvettus fish

The picture below shows the rose belt? (spiny scale snake snapper)? Ruvettus pretiosus ? Commonly known as? Oil fish, black cattle

Agkistrodon acutus is long and slightly flat, with an arc-shaped dorsal abdomen, a smaller mouth and eyes than fish of the same family, and a lower and prismatic first dorsal fin. In addition, the pupil can emit bright phosphorescence, the fish body is smooth and dark brown, the scales are small and needle-shaped, and there is a row of small pores in each row. Fish is yellow and white, and its texture is similar to that of poultry. Agkistrodon acutus contains wax ester, which is similar to wax oil and cannot be absorbed by human body.

There is a lot of oil, and eating more is easy to cause diarrhea. Therefore, in many parts of the world, the consumption of this fish is regulated, and even the import and sale are prohibited in Japan and Italy. Common in tropical and temperate seas all over the world.

Homologous scale mesh belt? Genus? (Scomberomorus)? Lepidocybium ? fish

What is the picture below? Scale mesh belt? ? (snapper)? Lepidocybium? Flavobrunneum, commonly known as Oil fish, barracuda, white dolphin?

It looks like snapper, but the scale is larger, the tail stalk has a ridge in the center, the lateral line is in a zigzag shape, and the fins are slightly different. The snapper is shiny and dark brown, and gradually turns black as it grows. 8 to 9 dorsal fin spines; Dorsal fin soft strips 16 to 18; Hard spines of gluteal fin 1 to 2; Gluteal fin soft strips 12 to 14.