The difference between bluefin tuna and yellowfin tuna
There are three main differences between bluefin tuna and yellowfin tuna: first, the color of the dorsal fin is different, the first dorsal fin of the former is yellow or blue, while that of the latter is reddish brown; second, the value of the former is higher than that of the latter; and third, it is of different size. the former can reach a maximum of more than 700 kilograms, while the latter is generally 40-60 kilograms. What are the other differences between them?
What is the difference between bluefin tuna and yellowfin tuna?
1. Shape
Yellowfin tuna: adult fish can be up to 3 meters long, weigh up to 225 kilograms, generally large up to 2 meters, weigh more than 100 kilograms, spindle-shaped, with a maximum fork length of more than 2 meters. The highest part of the body is in the middle of the base of the first dorsal fin. The second dorsal fin and the anterior fin of the anal fin are extended. The pectoral fin is medium-long and its end reaches below the starting point of the second dorsal fin. Gill rake 26,34. The back of the body is dark blue, and the abdomen is yellow to silver, often with horizontal stripes. The dorsal, anal and small fins are yellowish and the edges are black.
Bluefin tuna: it is generally about 200 cm long, up to 458 cm, weighs about 150 kg, and up to 684 kg. And its lower side and ventral silver-white have colorless cross-tangents that take turns with the colorless dots of the column. The first dorsal fin is yellow or blue; the second is reddish brown; the anal fin and fin are dark yellow and have black edges
two。 Other
At present, bluefin tuna is the most economically valuable and largest tuna, while yellowfin tuna is currently the most productive tuna.
Of course, whether bluefin tuna or yellowfin tuna, the price is higher than the average fish, nutrition is also higher than many kinds of fish.
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