Tuna (tuna) is a large, oceanic and important commodity that eats fish. See the warm waters of the world, in close proximity to the americium, the americium, etc. There are considerable variations and differences of classification, both within and between the sexes, and authorities disagree. Tunas are also called tunas, hong kong is called tuna swallowers, and macao is used as a portuguese-speaking transliterate, mostly tuna. Tunas are red because of the large amount of myoglobin in their muscles. Some tunas, such as bluefin tunas, can be metabolized with swimming muscles; their internal blood temperature is higher than the external water temperature. This physiological function allows tuna to adapt to larger water temperature ranges and thus to survive in lower temperatures. Swimming speeds can be up to 160 km per hour, with an average speed of about 60-80 km per hour. Tunas are found in the indian ocean, the central pacific and the central atlantic, and are tropical-subtropical oceanic fish. Tunas travel a long way, having been found offshore japan in the past from california, united states. There are eight species of tuna, most of which are large, with the largest being 3. 5 metres long, weighing between 600 and 700 kg, while the smallest is only 3 kg. Scorpion has a high reproductive capacity, with a 50-kg heavy female, with 5 million eggs per year. Tuna is a popular seafood and of high economic value. Because of national policies, activities and overfishing by fishermen, there are already threats to their populations, most notably bluefin gold guns. As a result, international regulation of tuna fishing has begun, but with considerable limited success。
