1, grouper
Oval body length is slightly flat, mouth is big, there is an auxiliary maxilla, teeth are thin, and some expand into canine teeth. The body is covered with a small comb, sometimes buried under the skin. The dorsal fin and gluteal fin are developed, and the caudal fin is round or concave, with great changes in body color, often brown or red, with stripes and spots.
2. Tiger grouper
The body is yellow to light brown, with golden yellow as the most beautiful. There are five irregular dark brown stripes arranged vertically, and the whole body is covered with dense tiny brown spots. The spots on the stripes are dark, and there are black saddle stripes on the back half of the tail handle.
Second, the distribution area is different.
1, grouper
Rocks, gravel and coral reef sediments near coastal islands.
2. Tiger grouper
Tropical and subtropical waters of the Indian Ocean and Pacific Ocean.
Third, the characteristics are different.
1, grouper
The body surface is covered with tiny comb scales, the dorsal fin is strong, and the body color can change with the environment.
2. Tiger grouper
There are 1 1 fin spines (rare 10), 14 ~ 18 fin spines, 3 fin spines in the gluteal fin, 8 ~ 9 fin spines, and the first fin spines are the strongest.
Extended data:
Nutritional value of grouper
1. The protein content of grouper is high, but the fat content is low. In addition to amino acids necessary for human metabolism, it is also rich in a variety of inorganic salts, iron, calcium, phosphorus and vitamins.
2. The nutritional components of fish skin colloid play an important role in enhancing the complete growth of epithelial tissue and promoting the synthesis of collagen cells, so it is called a fish for beauty and skin care. It is especially suitable for women to eat after delivery.
3. The grouper has high nutritional value and is rich in protein, vitamin A, vitamin D, calcium, phosphorus, potassium and other nutrients. It is a kind of high-quality edible fish with low fat and high protein, and it is advertised by Hong Kong and Macao as one of the four major fish in China.
Baidu Encyclopedia-Grouper (Animal)
Baidu encyclopedia-tiger spot