The difference between sardines and tuna

Sardines are the genera of sardines, small sardines, sardines and some edible fishes of the family herring. Tuna is a large and important commodity food fish. Tuna is called tuna in Hong Kong. Macau is translated into Asian winter fish in Portuguese. Let's take a look at the difference between sardines and tuna.

Differences in families and genera between sardines and tuna

1. Sardines: sardines are a general term for some edible fishes of the genus sardines and sardines, including the animal kingdom, phylum Chordata, subphylum vertebrates, bony fishes, radiofin subclasses, herring orders, herring families, sardines and sardines.

2. Tuna: tuna belongs to the large pelagic important commercial food fish of the order Perciformes, tuna suborder, tuna family, tuna, vertebrate subphylum, vertebrate subphylum, bony fishes, tuna, chordate phylum, vertebrate subphylum, bony fishes.

Morphological differences between sardines and tuna

1. Sardines: sardines are slender small silver fish with only one dorsal fin, no lateral line, no scale on the head, about 15cm long, the lower jaw is slightly longer than the upper jaw, the teeth are inconspicuous, the back is white and the meat is beautiful, it is often used for canned food.

2. Tuna: tuna is long, stout and round, streamlined, tapering backward and slender caudal base, with forked or crescent-shaped caudal fins. There are obvious ridges on both sides of the caudal stalk, and there is a row of small fins behind the dorsal and anal fins, with the shape of a torpedo, with a slightly round cross section and red flesh color.

Difference of origin between sardine and tuna

1. Sardines: sardines in the far East are distributed in eastern Honshu, southwestern Kyushu, the Sea of Japan and the Strait of horses. California sardines are found along the coasts of California and western Canada. South American sardines are found along the coasts of Chile and Peru in South America, Australia and New Zealand, and South Africa along the coasts of southern Africa, Angola and Namibia. The small sardines are distributed in the west of India, the Pacific Ocean and the Atlantic Ocean, while the sardines are distributed along the northeast Atlantic and Mediterranean coasts.

2. Tuna: tuna is a warm migratory fish in the ocean, mainly distributed in low and middle latitudes, widely distributed in the Pacific Ocean, Atlantic Ocean and Indian Ocean, and also distributed in the East China Sea and South China Sea, most of which inhabit in the water depth of 100m to 400m. Bigeye tuna, yellowfin tuna and skipjack tuna live in the surface waters of the ocean, while adult bigeye tuna and yellowfin tuna live in deep water.

Nutritional differences between sardines and tuna

1, sardines: sardines are rich in amazing nutritional value, rich in phospholipids, namely OMEGA-3 fatty acids, protein and calcium, this special fatty acid can reduce the production of triglycerides (harmful fatty acids that cause thrombosis), and gradually lower blood pressure and slow down the speed of atherosclerosis magical effect, while the phospholipids in sardines play a beneficial role in promoting the brain development of the fetus.

2. Tuna: tuna is a rare healthy food for modern people, with a protein content of up to 20%, but a very low fat content, commonly known as undersea chicken. Most of the fatty acids in fish are unsaturated fatty acids, which contain all kinds of amino acids. The human body needs eight kinds of amino acids, as well as vitamins, rich iron, potassium, calcium, magnesium, iodine and other minerals and trace elements.