Skipjack Tuna
Skipjack tuna is a species of tuna in the genus Katsuwonus. Skipjack tuna is a fast-swimming predatory fish found widely in tropical and temperate waters. Skipjack tuna is an important commercial fish that is eaten in many countries worldwide. It is one of the most abundant species of tuna, especially in the Pacific Ocean.
The skipjack tuna is an average of long, with typical specimens weighing up to. The maximum reported weight for this species is 65 kg (143 lb). The body shape resembles a bullet. It has two separate dorsal fins on its back, the first one spiny and not very large, while the second one is larger and contains the longest of the fin's spines.
Skipjack tuna live in tropical and subtropical waters worldwide, as well as temperate waters such as those of the Mediterranean Sea and the Black Sea. They are pelagic schooling fish, found in open waters of the epipelagic zone, often forming large schools with other tuna species such as Albacore tuna or Yellowfin tuna. Skipjack tuna prey on a variety of fish and invertebrates, though they have been reported to prefer small, schooling reef fishes such as sardines and anchovies because these species are so abundant in the open ocean where skipjack live.
Skipjack tuna spawn all year round. During spawning, males can reach sexual maturity around 70–80 days old, while females can reach sexual maturity between 80 and 120 days old. The spawning process takes place at night over several hours. During spawning, one female can lay up to 10 million eggs per year. However, only a few hundred reach adulthood. After hatching, the larvae are around 4 mm long and are similar to a miniature adult. Some schools of skipjack tuna can grow up to 300 kg in a very short period by utilizing favorable conditions such as those provided by El Niño.
Skipjack tuna has a streamlined body that is mostly without scales. Their backs are dark purple-blue and their lower sides and bellies are silver with four to six dark bands. Most skipjack tuna grow to be 45–90 centimeters in length. They can live as long as eight to 10 years. The maximum weight known for this species is 37 kilograms, but many are much smaller today due to high fishing pressures around the world.
The common name for Katsuwonus pelamis comes from the resemblance of their dark stripes on silvery flanks to those of a school of katsuwonus. Skipjack tuna is a species of tuna in the genus Katsuwonus. Skipjack tuna is a fast-swimming predatory fish found widely in tropical and temperate waters. Skipjack tuna is an important commercial fish that is eaten in many countries worldwide. It is one of the most abundant species of tuna, especially in the Pacific Ocean.
Global skipjack tuna production
Skipjack tuna is one of the most important commercial fish species in the world. It is widely distributed in tropical and subtropical waters, and its production is significant in many countries. The total global production of skipjack tuna was about 3.6 million tonnes in 2013, making it the second most important tuna species after yellowfin tuna. Skipjack tuna is used extensively in canning, and its flesh is often considered to be the best quality of all the tunas.
The majority of skipjack tuna production comes from purse seine fisheries, which account for about two-thirds of the total catch. The other main fishing method is longline fisheries, which account for the remaining one-third of the catch. Skipjack tuna is also caught in smaller quantities by pole and line and set-net fisheries.
Most skipjack tuna is consumed in canned form, although it is also popular as fresh or frozen tuna. In recent years, there has been an increasing demand forskipjack tuna steaks and other value-added products.
The main markets for skipjack tuna are in Asia, Europe, and North America. Japan is the largest market, followed by the United States and European Union. Skipjack tuna is also exported to many other countries around the world.