Description
Striped tuna (Scientific name: Sarda orientalis), also known as Katsuo in Japanese is a sea fish in the Tuna family in the Indo-Pacific waters, in India, Philippines, West South Australia, Eastern Africa, Japan, Hawaiian and Vietnam. This is one of the tuna species with high economic value and is widely caught.
The common name for Vietnamese is Oriental Tuna. Local name Stripe tuna, Cotton tuna, Melon tuna Striped Common English name: Striped tuna, Bonito tuna, Bonito, Belted Bonito, Oriental Bonito, Skipjack. The Japanese name is Hagatsuo, Ha-gatsuo. Spanish name Bonito mono Italian name Bonito. Korean name for Chul-sam-ch’i.
CHARACTERISTICS
The fish has a long, rhomboid body, sliced across the body near the circle, along the belly flank, there are 3-5 large black stripes nearly parallel to each other. Lateral line bend down posterior to dorsal fin number 2. Pointed tip, mouth slightly sloping, two dorsal fins close together. The upper jaw and lower jaw have many slender teeth. Particularly the lower jaw has 4 pointed and largest incisors. Cane leaf bone has no palate and no tooth net.
The first dorsal fin has high, low posterior fins, forming a rounded concave shape. The body is not covered except for the breastplate. The chest armor has larger scales, the back is dark blue, and the belly is silvery white. The mouth is wide, the lower jaw extends to the posterior edge of the eye, the edges of the dorsal, belly and chest are silvery white. Stripe tuna is a small fish in large densities in the high seas, sometimes near the shore to feed, often mixed with oh and tuna. Mining size 450 – 750mm.
VALUE
This is the main exploitation object of gill net. Besides, there are also some fishing gears exploiting this fish such as: seine net, long line, long line, drag line. The fishing season for melon striped fish is year-round. Tuna striped melon fishing of gill net is quite seasonal, in the Southwest monsoon, striped tuna is concentrated in coastal waters from Binh Dinh to Khanh Hoa, there are catches to prevent stripes. melons account for 70% [2] [3]. This fish is also a major food source in Sri Lanka, where it is smoked and processed to make soups or curries.
In Japan, they are widely caught in the Shizuoka region, formerly with fishing lines, but today nets are also widely used. Eating raw is the most favorite food from this fish, sashimi with or without skin, usually dipped with a cup of soy sauce with thinly sliced garlic, or washabi, a little lemon juice or shoyu. It is also used as a nigiri topped with grated fresh ginger, thinly sliced garlic, Similar to tataki or grilled tuna in sushi nigiri.
