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As the name suggests, the biggest difference between river fish and marine fish is the environment in which they grow. Professor Wang told reporters that, in fact, strictly speaking, river fish should be called freshwater fish, and the common ones are carp, crucian carp, grass carp, silver carp, Wuchang fish, tilapia, eel, etc.; Marine fish include hairtail, tuna, large yellow croaker, small yellow croaker, mackerel, salmon and turbot. He said that whether it is freshwater fish or marine fish, its nutritional content is roughly the same, and the overall nutritional value is very high.
First of all, fish is rich in protein, and the amount and ratio of essential amino acids contained in it are the most suitable for human needs, so it is a good protein intake for humans**. Secondly, the fat content of fish meat is less, and it is mostly composed of unsaturated fatty acids, and the human absorption rate can reach 95%, which has the effect of reducing cholesterol and preventing cardiovascular and cerebrovascular diseases. Third, fish meat is rich in minerals, such as iron, phosphorus, calcium, etc.; Fish liver contains a lot of vitamins A and D.
In addition, fish meat has short muscle fibers and a high moisture content, so the meat is tender and easier to absorb than livestock meat. Professor Wang pointed out that compared with foods with high nutritional value but not easy to absorb, fish is more beneficial to people's health. The nutrition and taste of marine fish are slightly better The nutritional content is similar, but it does not mean that the nutritional value of the two is exactly the same.
Professor Wang believes that marine fish have more nutrients than river fish, and their nutritional value is slightly superior. He said that the sea is extremely nutritious, especially high in nutrients, which makes the fish more mineral and vitamin content. In addition, the liver oil and body oil of marine fish contain a highly unsaturated fatty acid that is not found in terrestrial animals and plants, which contains a component called DHA (commonly known as brain**), which is an essential nutrient for the brain and is important for improving memory and thinking ability.
In addition, the content of omega-3 fatty acids and taurine in marine fish is much higher than that of freshwater fish, which has a protective effect on the heart and brain. In terms of taste, the taste of marine fish is also fresher than that of river fish. Professor Wang pointed out that this is because the swimming range and strength of marine fish are greater than those of river fish, which makes its muscles elastic better and delicious.
River fish, on the other hand, have an earthy smell because they grow in water with a lot of humus. Such an environment is suitable for actinomycetes to multiply and grow, and the bacteria invade the blood of the fish through the gills and secrete a brown substance with an earthy smell, which is difficult to remove during the cooking process. Steamed river fish has an earthy smell Speaking of eating fish, Professor Wang said that marine fish is suitable for all ages, and steaming, braising and other methods are suitable.
The crucian carp in the river fish is suitable for the elderly, children and pregnant women due to its long growth period, soft flesh and high nutritional value. However, some freshwater fish such as carp and silver carp are difficult to cover up their earthy smell when steamed, and the taste is far worse than that of marine fish. He reminded everyone that it is best to eat cooked marine fish, and raw food can cause severe abdominal pain and allergies due to Anisakis infection; Eating freshwater fish depends on whether it has been caught from contaminated water, which contains toxins that can cause health hazards.
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Do you know the difference between marine fish and freshwater fish?
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Turtle catfish Broad-haline fish.
Mugilidae Liza fish of the genus Liza is pictured below with the (turtle) Liza haematocheila (formerly known as Chelon Haematocheilus).
It is widely distributed in the Indian Ocean and Pacific Ocean, from the Red Sea and the East to the Tuamotu Islands in Africa, north to southern Japan, and south to Australia. Although it is produced in the sea, it has a wide range of adaptation to salinity, and can live normally in seawater and brackish water, and some species can fully adapt to the life of freshwater hall, and are the main fish for coastal marine aquaculture and brackish water pond cavity borrowing.
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Marine fish are fish that live in the sea. Such as yellow croaker, hairtail, mackerel, squid, cuttlefish, partial mouth fish, cod, pomfret, sea bass, eel, maha first coarse fish.
3. Salmon, grouper, horse noodle fish, etc.
The sea fish will die in the fresh water of the town of Chaozhen, the sea fish is rich in nutrition, the meat is delicate, the taste is delicious, the nutrition is rich, and it is easy to digest and absorb, suitable for braised and steamed and other cooking and eating.
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Yellow croaker is a marine fish。Yellow croaker has large yellow croaker and small yellow croaker, large yellow croaker is distributed in the southern part of the Yellow Sea, the East China Sea and the South China Sea, usually inhabits the deeper sea area, migrates to the offshore sea in April and June, spawns, disperses along the coast after spawning, and migrates to the deep sea area in autumn and winter.
Small yellow croaker is distributed in the Yellow Sea, Bohai Sea, East China Sea and the west coast of North Korea, the fish migrate to the coast in spring, after spawning in March and June, they are scattered in the offshore sea, return to the deep sea in late autumn, and overwinter in the deep sea in winter. Yellow croaker generally has a mixed diet and mainly feeds on fish and shrimp.
Tips for buying yellow croaker
1. The dorsal and anal fins are covered with small round scales at the base of the fin bars 2 3 or more. The scales are uniform in color and natural in yellow.
2. The eyes of fresh and high-quality yellow croaker are black and bright.
3. There are no scars on the body, the body is oblong, the head is relatively large, the tail stalk is slender, the upper body is yellow-brown, the abdomen is golden-yellow, the fins are yellow or gray-yellow, and the lips are orange-red.
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Hello, there are the following differences between marine fish and river fish:
1. The difference between river fish and marine fish is greater, the growth environment of river fish and marine fish is different, river fish live in fresh water in rivers, rivers, lakes and streams for life, and marine fish live in the sea for life, and if they are raised in fresh water, they will not adapt to die;
2. The taste of river fish and sea fish is different, river fish tastes like an earthy smell, the swimming range of sea fish and the strength of swimming are larger, the muscle elasticity is better, the taste is delicious, and there is no earthy smell. The spines of the two are different, river fish have dense small spines on their bodies, and marine fish do not.
That's the simple difference.
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