Cyprinidae? Ding Yu? Dinka fish

What is the picture below? Dinka Dinka? Also known as? Odin, Ding Guihe are all years old.

The body length can reach 70 cm, and most of them are smaller, with small eyes and orange-red. Androgyny is not obvious, but the abdomen of female fish is more prominent than that of male fish. The outer radial ribs of male ventral fins also seem to be thicker and flatter. The body is slightly tall, round and flat on the side. Generally olive green, black on the back, deep on the back, close to golden yellow on the abdomen, round, without skin edges. The tail fin of the body is not bifurcated, and the other fins are round, mostly gray-black and iridescent gold. It is not only delicious in fish, but also a good product for breeding, viewing and fishing.

Figure 2, difficult to distinguish. Could it be?

Black herring?

Figure 3,

German mirror carp is a kind of scalless carp, also known as loose scale mirror carp (three scales). This variety was introduced from the former West Germany. After more than 20 years of systematic breeding, Heilongjiang Fisheries Research Institute has bred a breeding line of German mirror carp suitable for breeding in most areas of China.

The dorsal fin is thick, flat on the side, with protrusions on the back of the head, small head, big eyes and large scales on the body surface, which are arranged along the edge. There are 1 rows of complete scales from the front end of dorsal fin to the head, and 1 rows of symmetrical and continuous complete scales on both sides of dorsal fin. There are scales at the base of each fin, and a few scales can be seen on individual lateral lines. Most lateral lines are straight without branches, and some lateral lines have short branches at the end.

Figure 4,

Fish of the sturgeon family (both edible and cultured are hybrid sturgeons) can also be braised in brown sauce.

If the hybrid sturgeon has the same advantages as both parents, almost all sturgeon species can be hybridized to obtain hybrid sturgeon. The most commonly used species are ACIPENSER europaeus, ACIPENSER schrenckii, ACIPENSER Dalbergiae and ACIPENSER sinensis, but the fertilized eggs obtained by crossing with other species cannot hatch successfully, which may be due to the reproductive isolation between ACIPENSER schrenckii and other species. If two varieties cross, if fertilized eggs can be obtained and hatched successfully, only these two varieties cross within the species or a small number cross within the genus.

English name: bester

Its body is slender, its back is black, its abdomen is white, and its body is covered with five ribs. It has the characteristics of fast growth, high feed conversion rate, strong disease resistance, high nutritional value and no muscle thorn.