What is 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 differs: the first dorsal fin of the former is yellow or blue, while the dorsal fin of the latter is reddish-brown. Second, the value differs: the former is higher than the latter. Third, the size differs: the former can reach over 700 kg, while the latter is generally 40-60 kg. What other differences do they have besides these?

What other differences are there between bluefin tuna and yellowfin tuna?

1. Appearance

Yellowfin tuna: Adults can reach a maximum body length of 3 m and a weight of 225 kg; the larger ones generally reach 2 m and weigh over 100 kg. The body is spindle-shaped, and the maximum fork length can exceed 2 m. The highest part of the body is at the middle of the base of the first dorsal fin. The anterior fin rays of the second dorsal fin and anal fin are elongated. The pectoral fins are medium-long, with their tips reaching below the origin of the second dorsal fin. There are 26~34 gill rakers. The back is dark blue, and the belly is yellow to silver, often with some horizontal stripes. The dorsal fin, anal fin and finlets are all pale yellow with black edges.

Bluefin tuna: Its length is generally around 200 cm, with a maximum of 458 cm, and its weight is about 150 kg, with a maximum of 684 kg. Moreover, its lower side and ventral surface are silvery white with colorless spots arranged in rows alternating with colorless transverse lines. The first dorsal fin is yellow or blue; the second is reddish-brown; the anal fin and finlets are dark yellow with black edges

2. Other

Bluefin tuna is currently the tuna with the greatest economic value and the largest body size, while yellowfin tuna is currently the most abundant tuna by production.

Of course, whether bluefin tuna or yellowfin tuna, their selling prices are higher than those of ordinary fish, and their nutrition is also higher than that of many kinds of fish.