There are certain similarities between cannonball fish and tuna, and sometimes it is difficult to distinguish them. However, they are not a kind of fish, there are many differences, and they can be distinguished from each other in many ways.
1. Length: First of all, you can distinguish them from their length. Cannonball fish are relatively short, most of its species in the adult length will generally be between 20-30 cm. However, the length of tuna is different. Tuna includes many species, some of which are very long, such as "bigeye tuna", which can reach more than 1 meter or even 2 meters in length, and may weigh 150 kilograms or more; However, there will also be smaller tuna species, overall, the difference in size of different tuna is relatively large.
2. Distribution range: In addition, the distribution range of shellfish and tuna is also different. The origin of cannonball fish is mainly in the South China Sea. The distribution of tuna is relatively wide, in the Indian Ocean, the Pacific Ocean, the Atlantic Ocean and other waters are distributed, but also in tropical, subtropical and temperate regions, are distributed.
3. Value: There is also a difference in value between cannonball fish and tuna. Tuna is a very famous fish, whether it is its food value, nutritional value, or economic value, are very high, so artificial breeding of this fish more people. In contrast, the nutritional value and edible value of cannonball fish will be lower.