Jumping fish seem to grow on the beach. It is said that some branches can be inserted obliquely on the beach before the high tide. When the high tide comes back, they will all jump on it, and then you can catch it directly.
mudskipper
"Jumping fish" generally refers to "mudskippers (amphibians)"
Pinball fish, an ancient amphibian with a low degree of evolution. The mudskipper is a general term for the family Periophthalmini, and most of them are amphibians. The common mudskippers are Guangdong mudskippers (Periophthalmus cantonensis), also known as Periophthalmus, Shitiezi and Jumping Fish, with a body length of10 cm; The other is called Boleophthalmus boddarti, also called Boleophthalmus boddarti, which is about 20 cm long when it grows up. It doesn't adapt to land life like Guangdong mudskipper, and can only stay on the ground for a short time. They are gray-brown, with muddy tones, covered with dark stripes, and have large pectoral fins, which are suitable for muddy crawling, slender bodies and flat tails. Common in mangrove wetlands in Hongkong, Taiwan Province Province and Southeast Asia.
1 species classification
The mudskipper belongs to the family Echinophoridae. There are 25 kinds of mudskippers in the world. According to their physical and behavioral characteristics, they can be divided into four species: Scarlaus, Boer Overssalmus, Perez Overssalmus and Perez Overssalmerton. There are 3 genera and 6 species of mudskipper, giant mudskipper, blue mudskipper and Daqing mudskipper in China's coastal areas. [1] Common species are mudskipper, giant mudskipper and blue mudskipper.
2 morphological characteristics
The body of the mudskipper is cylindrical, with a body length of10 ~ 20cm and a weight of 20 ~ 50g. The eyes are small, protruding above the rear edge of the head, the lower eyelids are developed, and the mouth is in the terminal position. Each jaw has/kloc-0 rows of teeth, the maxillary teeth are tapered, and the three teeth on each side in front are canine teeth; The mandibular teeth are tilted outward and almost lying down. The back is dark brown. The abdomen is gray. There are 6 black stripes on the back, irregular green-brown spots on the whole body and 2 dorsal fins. 1 The dorsal fin is very small, with only five fin spines, and the ends of the fin spines are filiform, of which the third spine is the longest; The second dorsal fin and gluteal fin are very long, with three long gray-white horizontal lines, which are roughly equal in length. The caudal fin is wedge-shaped and wide; The pectoral fin has a yellow-green insect pattern.
Mud-coated fish is small in size, and the mature individuals is generally 80 ~ 90 mm long and weighs 15 ~ 25g. Adults can reach 120 ~ 150 mm in length and weigh 30 ~ 40 grams. The side of the body is flat, the trailing edge is straight, the abdominal edge is shallow arc, the tail handle is high, and the body and head are covered with small round scales. The first dorsal fin is quite high, the base is short, and the five-fin spine is slender and filiform; The fin of the second dorsal fin is lower, reaching the base of the caudal fin, the ventral fin is short, and the pectoral fin and caudal fin are pointed and round. The body is blue-brown or gray-brown, and there are 6 ~ 7 gray-black horizontal stripes along the base of dorsal fin on the upper side of the body. There are many bright blue dots scattered on the side and head, the abdomen is white, the first dorsal fin is dark blue, the second dorsal fin is blue-gray, the ventral fin is light yellow, and the caudal fin is gray-black. [2]
Male and female mudskippers are indistinguishable in appearance, but the female reproductive pore is large, round and red. Male reproductive pores are long and narrow. [3]
3 distribution range
China is mainly distributed in the South China Sea and the East China Sea, while Guangdong is mainly distributed in the Pearl River Estuary, leizhou bay and other places.
It is distributed all over the world in the west coast of Africa, Indian, Pacific waters, tropical and subtropical inshore shallow waters of New hebrides (not produced in the United States).