It's fish roe, which is edible. Only fish roe and swim bladder can be eaten in the abdominal cavity of fish, and everything else should be discarded.

yellow croaker, there are big and small yellow croaker, also known as yellow croaker. It belongs to ichthyidae. There are two hard stones in the fish head, called fish brain stone, so it is named "stone fish". Pseudosciaena crocea is also called Daxian, Dahuanghua and Osmanthus crocea.

small yellow croaker is also called small fresh, small yellow flower and small yellow croaker. The feeding habits of yellow croaker are miscellaneous, mainly feeding on fish and shrimp. It is most famous for producing large yellow croaker in Zhoushan fishing ground in China. It's a marine fish without scales. It is shaped like a sturgeon, gray in color, with three rows of bony plates on its back, a beard on its nose, a mouth near the chin and a forked tail. It grows in deep water. Meat: sexual taste, sweet taste, flat sex and little toxicity.

yellow croaker is divided into Pseudosciaena crocea and Psendosciaena polyactis, which are one of the four major marine species in China. Pseudosciaena crocea is also called Daxian, Jinlong, Huanggua Fish, Red Melon, Huang Jinlong, Osmanthus crocea, King Fish and Rhubarb. Small yellow croaker is also called Plum, Plum Fish, Xiaowang Fish, Xiaoxian, Koharu Fish, Small Yellow Croaker, Thick Scaled Fish and Flower Fish. They all belong to the fish class, the grouper family.

Pseudosciaena crocea has similar morphology and habits. This kind of fish has a flat and elongated side and is golden yellow. Pseudosciaena crocea has a slender tail stalk and small scales, with a body length of 4 ~ 5 cm and 25 ~ 27 vertebrae. Small yellow croaker has a short tail stalk and large scales, with a body length of about 2 cm and 28 ~ 3 vertebrae.

resources

Baidu encyclopedia:/item/%e9% bb% 84% e9% B1% BC/678221.